CN115018360B - Method for evaluating full life cycle of multi-dimensional tunnel light environment design scheme - Google Patents
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Abstract
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, and belongs to the technical field of highway tunnel illumination. The method mainly comprises four parts of road brightness calculation of a tunnel light environment design scheme, carbon emission calculation of the whole life cycle of the tunnel light environment design scheme, economic cost calculation of the whole life cycle of the tunnel light environment design scheme and evaluation index dimension integrated calculation. The overall thought of the evaluation method is to measure the safety, low carbon and economic performance of the design scheme by utilizing the road brightness, the total life cycle carbon emission and the total life cycle economic cost, thereby providing reliable reference basis for the evaluation and comparison of the tunnel light environment design scheme, and realizing new targets of energy conservation, cost reduction and environment construction of the tunnel light environment with green and high-efficiency operation. The invention can evaluate the safety, low carbon and economy of the tunnel light environment design scheme, and provides basis for preference selection of different light environment design schemes.
Description
Technical Field
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, and belongs to the technical field of highway tunnel illumination.
Background
In the conventional evaluation of the tunnel light environment design scheme, scheme screening is usually carried out only for tunnel illumination parameters, so that the requirement of tunnel illumination safety can be met, and the problems of energy conservation and environmental protection during tunnel light environment design are ignored, so that the problems of redundancy of tunnel light environment illumination, high operation cost after construction and high energy consumption are increasingly outstanding.
Therefore, a new multi-dimensional tunnel light environment design scheme evaluation method is required to be provided for achieving the new objective of tunnel light environment safety, low carbon and economic three-in-one construction. The evaluation method has strong engineering application and popularization values for screening out tunnel light environment design schemes which are safe and reliable, save energy sources and reduce manufacturing cost and operate in a green and efficient way.
Disclosure of Invention
The invention discloses a method for evaluating the full life cycle of a multi-dimensional tunnel light environment design scheme, which is characterized in that the safety, low carbon and economic performance of a tunnel are quantitatively evaluated through calculation of the road brightness of the tunnel light environment design scheme, calculation of the carbon emission of the full life cycle of the tunnel light environment design scheme and calculation of the economic cost of the full life cycle of the tunnel light environment design scheme, and evaluation indexes of three dimensions are unified in the same coordinate system by using a dimension-unified method to visually output the evaluation results, so that the tunnel light environment design scheme integrating safety, low carbon and economy is screened.
The invention adopts the following technical scheme:
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, which comprises the following steps:
Step 1, determining design parameters of a tunnel light environment design scheme to be evaluated, and determining the size of a tunnel section; the design parameters are as follows: the type of tunnel lamp, the lamp installation interval (S), the lamp installation angle (beta), the lamp installation height (h), the reflectivity (ρ ωW) of a tunnel side wall decorative material, the reflectivity (ρ ωV) of a tunnel vault decorative material, and the conversion coefficient (K) between the average brightness and the average illuminance of a road surface; the tunnel section parameters are mainly used for calculating the carbon emission amount and the economic cost of the whole life cycle of the tunnel, the inner surface of the tunnel is approximated to be an arc in the calculation, and the length (m) of the tunnel and the circumference (m) of the arc of the cross section of the tunnel are needed to be known to calculate the coating area (m 2) of the decorative material in the tunnel;
And a tunnel light environment design scheme is established through the design parameters;
Step 2, calculating the actual brightness of the road surface in the tunnel light environment design scheme according to the design parameters of the tunnel light environment design scheme in the step 1, and deleting the design scheme which does not meet the tunnel illumination safety requirement according to the tunnel illumination design specification standard;
Step 3, calculating to obtain the carbon emission of the whole life cycle according to the tunnel light environment design scheme in the step 2;
Step 4, calculating to obtain the economic cost of the whole life cycle according to the tunnel light environment design scheme in the step 2;
Step 5, carrying out calculation on the actual brightness L av of the road surface in the step 2 to the step 4, the carbon emission amount of the whole life cycle and the economic cost of the whole life cycle into a whole life cycle model of the tunnel light environment as follows:
Wherein: l av is the road surface brightness of the tunnel light environment design scheme, B is the economic cost of the whole life cycle of the tunnel light environment design scheme, C is the carbon emission of the whole life cycle of the tunnel light environment design scheme, L avmin is the minimum road surface brightness of all tunnel light environment design schemes, B max is the maximum value of the carbon emission of the whole life cycle of all tunnel light environment design schemes, C max is the maximum value of the economic cost of the whole life cycle of all tunnel light environment design schemes, J L is the road surface brightness evaluation index value of the tunnel light environment design scheme, J s is the economic cost evaluation index value of the whole life cycle of the tunnel light environment design scheme, and J C is the carbon emission evaluation index value of the whole life cycle of the tunnel light environment design scheme;
The minimum brightness value, the maximum carbon emission value and the maximum economic cost value in each scheme are selected as reference values of the group of design schemes to carry out dimension unification treatment, and then the tunnel light environment design schemes are visually evaluated according to the calculation results;
And (3) when a plurality of tunnel light environment design schemes exist, repeating the steps 1-4, and carrying out calculation and evaluation on the tunnel light environment full life cycle model in the step 5 after calculation of the average brightness of the road surface, the full life cycle carbon emission and the economic cost of all tunnel light environment design schemes are completed.
In the actual calculation and operation process, the loop of steps 1 to 4 may be repeated without performing the above-described multiple tunnel light environment design schemes. Specifically, the road brightness of all the tunnel light environment design schemes to be evaluated can be calculated according to the step 2, the design schemes which do not meet the safety requirements of the tunnel illumination standards are directly removed after the result is obtained, the calculation of the total life cycle carbon emission and the economic cost of all the tunnel light environment design schemes to be evaluated is completed in the subsequent steps 3-4, and the step 5 is directly carried out after the result is summarized.
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, wherein the actual brightness of a road surface in the tunnel light environment design scheme in the step 2 is as follows:
Calculating the number n of lamps affecting the road surface calculation point by the following steps:
wherein n is the number of lamps affecting p points, S 0 is the length (m) of the illumination area calculated by the road surface, S is the arrangement interval (m) of the lamps, ω is the arrangement coefficient of the lamps, 2 is taken when the lamps are symmetrically arranged, and 1 is taken when the lamps are arranged in other modes
The average illuminance E av of the tunnel road surface was calculated by:
Wherein E av is the average illuminance of a tunnel pavement, I C(γ+β) is the light intensity value (cd) of a lamp at a calculation point, phi is the rated luminous flux (lm) of the lamp, gamma is the included angle (°) between the calculation point and the central axis of the tunnel lamp, beta is the installation included angle (°) of the tunnel illumination lamp, h is the installation height (M) of the tunnel illumination lamp, M is a maintenance coefficient, rho ωV is the reflectivity of a tunnel vault decorative material, rho ωW is the reflectivity of a tunnel side wall decorative material, and M is the number of calculation points; wherein the value of a 0、a1、a2 is related to omega; the road surface actual luminance L av is calculated by:
Wherein L av is the average brightness of the road surface, K is the conversion coefficient between the average brightness and the average illumination of the road surface, and the coefficient is preferably obtained by adopting field actual measurement data; if no actual measurement condition exists, the black asphalt pavement is usually 15 lx/(cd.m -2), and the cement concrete pavement is 10l x/(cd.m -2).
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, which comprises the following steps of:
The carbon emission of the whole life cycle of the tunnel light environment is divided into five stages of production, transportation, construction, operation and maintenance, and the carbon emission C of the whole life cycle of the tunnel light environment is shown as the following formula:
C＝CP+CT+CC+CO+CM
Wherein C is the carbon emission of the whole life cycle of the tunnel light environment, C P is the carbon emission of the tunnel light environment material in the production stage, C T is the carbon emission of the tunnel light environment material in the transportation stage, C C is the carbon emission of the tunnel light environment in the construction stage, C O is the carbon emission of the tunnel light environment in the operation stage, and C M is the carbon emission of the tunnel light environment in the maintenance stage;
the carbon emission C P at the production stage of the tunnel light environment material was obtained by the following formula:
CP＝CPP+CPL
Wherein alpha is a unit area inner wall decoration material coating quality coefficient, 5-7 kg/m 2,CPP is carbon emission in the production process of the tunnel inner wall decoration material, E PP(i) is carbon emission factor of the kth inner wall decoration material, C PL is carbon emission in the production process of the tunnel illumination lamp, E PL(i) is carbon emission factor of the nth tunnel illumination lamp, N i is the use quantity of the ith tunnel lamp, S i is the coating area of the ith tunnel inner decoration material, N is the type quantity of the tunnel illumination lamp, and k is the type quantity of the tunnel inner wall decoration material;
The carbon emission C T at the tunnel light environment material transportation stage was obtained by the following calculation:
CT＝CTP+CTL
Wherein C TP is the carbon emission generated by transportation of the lighting lamp, C TL is the carbon emission generated by transportation of the inner wall decoration material, C Ti is the carbon dioxide emission coefficient of the ith transportation mode, m i is the transportation quantity of the ith transportation mode, For the transport amount of the inner wall decoration material of the ith transport mode,/>L i is the distance that the goods are transported in the ith transportation mode, epsilon is the transportation turnover rate, and Tr is the type of transportation mode;
the carbon emission C c at the tunnel light environment construction stage is obtained by the following steps:
Cc＝CCP+CCL
Wherein C CP is the carbon emission generated by the installation of the lighting lamp, C CP is the carbon emission generated by the installation of the inner wall decoration material, C Ii is the carbon dioxide emission coefficient of the ith energy source, For the energy consumption of the installation of the inner wall decoration material,/>For installing the energy consumption of the lighting lamp, eta is the equipment installation efficiency, ir is the type of the energy consumed by installation, and I i is the energy consumption of different installation modes;
The carbon emission C 0 at the tunnel light environment operation stage was obtained by:
C0＝(n(A)p(A))×t×365Tq×EF
Wherein C O is the electric power for the lighting device, a= { a 1,A2,A3,…,An } can be used to represent all lighting fixtures used in the light environment, wherein a n is the nth lighting fixture, vector n (A)＝(n1,n2,n3,…,nn) wherein n n is the number of the nth lighting fixture used, vector p (A)＝(p1,p2,p3,…,pn) wherein p n is the rated power of the nth lighting fixture, E F is the carbon dioxide emission coefficient for electric energy consumption, T q is the tunnel life cycle, year, T is the light-on time per day in the tunnel operation stage, and Hour;
The carbon emission C M at the tunnel light environment curing stage was obtained by:
Wherein U Pi is the service life of the ith inner wall decorative material in the tunnel light environment, year, U Li is the service life of the ith tunnel lighting lamp, hour, t is the daily lighting time in the tunnel operation stage, hour, C PPi is the total carbon emission of the ith inner wall decorative material, C PLi is the total carbon emission of the ith tunnel lighting lamp, C TPi is the carbon emission generated by the transportation of the ith inner wall decorative material, and C TLi is the carbon emission generated by the transportation of the ith tunnel lighting lamp;
The invention relates to a method for evaluating the whole life cycle of a multi-dimensional tunnel light environment design scheme, wherein in the step 4, the economic cost of the whole life cycle of the tunnel light environment is as follows: construction cost, maintenance cost, electricity cost and total life cycle economic cost B of tunnel light environment are expressed as follows:
B＝BC+B0+BM
Wherein, B is the net present value of the total life cycle cost of the tunnel light environment, B C is the net present value of the construction cost of the tunnel light environment, B O is the net present value of the operation cost of the tunnel light environment (the electricity cost for illumination), and B M is the net present value of the maintenance cost of the tunnel light environment;
specifically, the total life cycle economic cost calculation steps of each part in the tunnel light environment design scheme are as follows:
the full life cycle economic cost B C of the tunnel light environment design scheme construction part is obtained through the following calculation:
Wherein A Pi is the unit price of each type of tunnel inner wall decorative material, A Li is the unit price of each type of interior decorative lamp, N i is the number of used tunnel lamps, S i is the coating area of the ith type of tunnel inner decorative material, N is the number of tunnel illumination lamps, and k is the number of tunnel inner wall decorative material types;
The full life cycle economic cost B 0 of the tunnel light environment design scheme operation part is obtained through the following calculation:
B0(i)＝(n(A)p(A))×t×365FE(1+Δ1)i-1
Wherein R is the discount rate, F E is the electricity cost, delta 1 is the annual increase rate of the electricity cost, B 0(i) is the economic cost for the operation of the tunnel light environment in the ith year, and all used lighting fixtures in the light environment can be represented by A= { A 1,A2,A3,…,An }, wherein A n is the nth lighting fixture, vector n (A)＝(n1,n2,n3,…,nn) wherein n n is the number of the nth lighting fixtures used, and vector p (A)＝(p1,p2,p3,…,pn) wherein p n is the rated power of the nth lighting fixture.
The full life cycle economic cost B M of the tunnel light environment design scheme maintenance part is obtained through the following calculation:
BMW(i)＝N˙S˙FW(1+Δ2)i-1
Wherein B MW(i) is the economic cost for cleaning the tunnel in the ith Year, B MR(i) is the economic cost for maintaining tunnel facilities in the ith Year, A Pi is the unit price of each tunnel inner wall decoration material, A Li is the unit price of each interior decoration lamp, U Pi is the service life of the ith inner wall decoration material in a tunnel light environment, year, U Li is the service life of the ith tunnel illumination lamp, hour, N is the number of times of planned cleaning, F W is the cleaning operation cost, S is the total area of the inner wall of the cleaning tunnel, N i is the number of used tunnel lamps in the ith Year, S i is the coating area of the decoration material in the ith tunnel, delta 2 is the annual increase rate of the cleaning operation cost, delta 3 is the annual increase rate of the maintenance cost, and R is the discount rate.
Advantageous effects
(1) Compared with the road surface illuminance calculation method in the current specification, the road surface illuminance prediction model based on the multi-factor influence provided by the tunnel illumination simulation result considers the reflection brightening effect on the road surface of the tunnel when different decorative materials are adopted by the vault and the side wall of the tunnel, the road surface brightness calculation result is closer to the actual effect, the tunnel illumination effect is accurately reflected, the redundancy of the tunnel illumination design is avoided, and the effects of saving energy and reducing cost are achieved;
(2) The invention refers to a tunnel construction full life cycle theory, divides the tunnel light environment construction full life cycle into five stages of production, transportation, construction, operation and maintenance, considers the energy conservation and environmental protection of the tunnel light environment full life cycle from the carbon emission perspective, and can more accurately select a low-carbon environmental protection tunnel light environment design scheme;
(3) The full life cycle economic cost of the tunnel light environment encompasses all the economic resources of tunnel lighting in the designed service life. Analysis of the economic cost of the whole life cycle of the tunnel light environment can reflect not only the first construction cost of the tunnel light environment, but also the expenditure of operation and maintenance after construction, can effectively avoid the spreading waste in the initial stage of tunnel construction, and also can realize the operation of the tunnel
(4) According to the invention, different measurement standards are unified through dimension unification treatment, unified comparison and analysis of three dimensions of safety, low carbon and economy of the tunnel light environment design scheme are realized, the operation is easy, the practicability is strong, qualitative and quantitative judgment of the tunnel light environment can be formed according to established evaluation indexes, reference basis is provided for different construction preferences, the call of national policies of energy conservation and emission reduction and double carbon is responded, and the method has wide application range and prospect.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic diagram of a road illuminance calculation area and a lamp with an influence on calculation points;
FIG. 3 is a graph of the relationship between the lighting fixtures of the present invention and the road surface calculation points;
FIG. 4 is a view for explaining the evaluation result of the light environment according to the present invention;
FIG. 5 is a graph showing the evaluation results of the light environment according to the present invention.
Detailed Description
In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
As shown in fig. 1: taking a certain tunnel as an example, 5 different interior decoration combinations and light environment design schemes with different lamp arrangement forms are designed, safety, low-carbon energy conservation and economical efficiency evaluation are carried out, and each tunnel light environment design scheme is shown in table 1:
TABLE 1 Tunnel light Environment design scheme to be evaluated
The multi-dimensional tunnel light environment life cycle evaluation method adopted by the invention, as shown in figure 1, comprises the following steps:
(1) Determining each design parameter of the tunnel light environment design scheme to be evaluated and related information such as tunnel section size, and the like, specifically, for example: the type of tunnel lamp, the lamp installation interval (S), the lamp installation angle (beta), the lamp installation height (g), the reflectivity (ρ ωW) of the tunnel side wall decorative material, the reflectivity (ρ ωV) of the tunnel vault decorative material, the conversion coefficient (K) between the average brightness and the average illuminance of the road surface, and the like.
(2) And combining known light environment design parameters, calculating the average illuminance of the road surface and the average brightness of the road surface under each design scheme according to a road surface illuminance prediction model under the influence of multiple factors, and comparing the road surface brightness calculation result with the current tunnel design specification to determine whether the tunnel illumination safety operation requirement is met.
(2-1) Calculation in combination with the carbon emission model of each stage of the tunnel light environment design scheme
(2-1-1) Calculating the number of the equal illumination lamps which affect the tunnel pavement
(2-1-2) Calculating the average road illuminance of the Tunnel light Environment design scheme
Table 2 values table of different arrangements a 0、a1、a2
Note that: wherein: k MI is the reflection increment coefficient, ρ ωV is the reflectivity of the tunnel vault decorative material, and ρ ωW is the reflectivity of the tunnel side wall decorative material
(2-1-3) Calculating the road surface average luminance of the Tunnel light Environment design scheme
The calculation results of the road surface average illuminance, average luminance and road surface luminance uniformity of the 5 tunnel illumination designs are shown in table 3:
Table 3 five light environment designs road average luminance and road illuminance uniformity
Note that: in the tunnel light environment design scheme, the conversion coefficient K between the average brightness and the average illumination of the road surface is 21.5 lx/(cd.m -2)
(2-2) Security screening of 5 Tunnel light Environment design schemes in combination with calculation results
Through comparison, 5 tunnel light environment design schemes all meet the standard requirements on road surface brightness and road surface brightness uniformity in detail, meet the safety requirements of tunnel illumination, and can enter the analysis link of the carbon emission and economic cost of the whole life cycle of the design scheme.
(3) Calculation of full life cycle carbon emissions for tunnel light environment design meeting regulatory safety requirements
(3-1) Determining parameters required for calculation of the full life economic cost of the tunnel light environment design scheme:
TABLE 4 carbon (CO 2) emission coefficient, c Ti
TABLE 5 emission coefficient of main energy consumption carbon (CO 2), c Ei
Table 6 carbon dioxide emission coefficient of tunnel lighting consumables
Note that: data from China product full life cycle greenhouse gas emission coefficient base (China Products Carbon Footprint Factors Database)
(3-2) Calculating by combining the carbon emission model of each stage of the tunnel light environment design scheme,
(3-2-1) Tunnel light environmental design Material production stage carbon emission amount calculation
(3-2-2) Tunnel light Environment design solution Material transportation stage carbon emission amount calculation
(3-2-3) Calculation of carbon emission amount in the construction stage of the Tunnel light Environment design scheme
(3-2-4) Tunnel light Environment design scheme operation procedure carbon emission amount calculation
C0＝(n(A)p(A))×t×365Tq×EF
(3-2-5) Calculation of carbon emission in tunnel light environment design scheme maintenance link
The total carbon emissions and total amounts for each stage of the 5 tunnel light environment design schemes are shown in table 7:
TABLE 7 five light environmental designs carbon emissions (kg) at different stages
(4) Calculating full life cycle economic cost of tunnel light environment design scheme meeting standard safety requirements
(4-1) Determining parameters required for calculation of the full life economic cost of the tunnel light environment design scheme:
table 8 statistics of the required fees for each item
TABLE 9 statistics of discount rate and cost increase rate (%)
(4-2) Calculating by combining the economic cost models of all parts of the tunnel light environment design scheme,
(4-2-1) Partial life cycle economic cost calculation for tunnel light environment design scheme construction
(4-2-2) Tunnel light environment design scheme operation part full life cycle economic cost calculation
B0(i)＝(n(A)p(A))×t×365FE(1+Δ1)i-1
(4-2-3) Tunnel light environment design scheme maintenance part full life cycle economic cost calculation
BMW(i)＝N˙S˙FW(1+Δ2)i-1
The total carbon emissions and total amounts for each stage of the 5 tunnel light environment design schemes are shown in table 10:
table 10 five light environment designs economic cost net present value (yuan) at different stages
(5) Calculation and output of evaluation result of tunnel light environment design scheme
(5-1) After calculating the results of the total life cycle carbon emission and the economic cost of the tunnel light environment design scheme, importing the results into an evaluation model to calculate an evaluation objective function, wherein the calculation results of the indexes are summarized as shown in table 11:
TABLE 11 five light Environment designs economic cost ratio at different stages (%)
Wherein each index value as the reference value of the set of evaluation schemes is shown in Table 12
Table 12 index values of the tunnel light environment evaluation model
(5-2) Introducing the table and the summarized results in the table into a multi-dimensional tunnel light environment design scheme full life cycle evaluation model, and calculating the evaluation results:
the calculation results are shown in Table 13, where an item with a value of 0 represents the design that is the worst in this index evaluation.
Table 13 index values of the tunnel light environment evaluation model
(5-3) Calculating each index value according to the tunnel light environment evaluation model, and visually outputting an evaluation result by using a radar chart, as shown in fig. 5.
And (5) carrying out radar chart visual output on each scheme according to the calculation result of each evaluation index, wherein the result is shown in fig. 5. The tunnel light environment design schemes shown in fig. 5 all meet the security requirements in the tunnel lighting design specification, and the specific results according to the evaluation result can be shown as follows: scheme I has the worst performance in economy and energy conservation, and the illumination performance is not optimal; the scheme II and the scheme IV are better in economical efficiency and energy conservation, but the road brightness performance is general, wherein the scheme II is better in performance; while schemes III and V provide superior performance in lighting environments, they are based on sacrificing economy and energy savings. According to the evaluation result, if the illumination is enough, selecting a scheme II according to the requirement of economy and energy conservation; if the requirements on the tunnel illumination quality are higher, the scheme V can be selected if the requirements on economy and energy conservation are properly considered; in consideration of the overall performance of the design, scenario II is preferred over scenario V.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (3)
1. A method for evaluating the full life cycle of a multi-dimensional tunnel light environment design scheme is characterized by comprising the following steps: the method comprises the following steps:
Step 1, determining design parameters of a tunnel light environment design scheme to be evaluated; the design parameters are as follows: the type of tunnel lamp, the lamp installation interval (S), the lamp installation angle (beta), the lamp installation height (h), the reflectivity (ρ ωW) of a tunnel side wall decorative material, the reflectivity (ρ ωV) of a tunnel vault decorative material, and the conversion coefficient (K) between the average brightness and the average illuminance of a road surface;
And a tunnel light environment design scheme is established through the design parameters;
Step 2, calculating the actual brightness of the road surface in the tunnel light environment design scheme according to the design parameters of the tunnel light environment design scheme in the step 1, and deleting the design scheme which does not meet the tunnel illumination safety requirement according to the tunnel illumination design specification standard;
step 3, calculating to obtain the carbon emission of the whole life cycle according to the tunnel light environment design scheme in the step 2; the calculation steps are as follows:
The carbon emission of the whole life cycle of the tunnel light environment is divided into five stages of production, transportation, construction, operation and maintenance, and the carbon emission C of the whole life cycle of the tunnel light environment is shown as the following formula:
C＝CP+CT+CC+CO+CM
Wherein C is the carbon emission of the whole life cycle of the tunnel light environment, C P is the carbon emission of the tunnel light environment material in the production stage, C T is the carbon emission of the tunnel light environment material in the transportation stage, C C is the carbon emission of the tunnel light environment in the construction stage, C O is the carbon emission of the tunnel light environment in the operation stage, and C M is the carbon emission of the tunnel light environment in the maintenance stage;
the carbon emission C P at the production stage of the tunnel light environment material was obtained by the following formula:
CP＝CPP+CPL
Wherein alpha is a unit area inner wall decoration material coating quality coefficient, 5-7 kg/m 2,CPP is carbon emission in the production process of the tunnel inner wall decoration material, E PP(i) is carbon emission factor of the kth inner wall decoration material, C PL is carbon emission in the production process of the tunnel illumination lamp, E PL(i) is carbon emission factor of the nth tunnel illumination lamp, N i is the use quantity of the ith tunnel lamp, S i is the coating area of the ith tunnel inner decoration material, N is the type quantity of the tunnel illumination lamp, and k is the type quantity of the tunnel inner wall decoration material;
The carbon emission C T at the tunnel light environment material transportation stage was obtained by the following calculation:
CT＝CTP+CTL
Wherein C TP is the carbon emission generated by transportation of the lighting lamp, C TL is the carbon emission generated by transportation of the inner wall decoration material, C Ti is the carbon dioxide emission coefficient of the ith transportation mode, m i is the transportation quantity of the ith transportation mode, For the transport amount of the inner wall decoration material of the ith transport mode,/>L i is the distance that the goods are transported in the ith transportation mode, epsilon is the transportation turnover rate, and Tr is the type of transportation mode;
the carbon emission C c at the tunnel light environment construction stage is obtained by the following steps:
Cc＝CCP+CCL
Wherein C CP is the carbon emission generated by the installation of the lighting lamp, C CP is the carbon emission generated by the installation of the inner wall decoration material, C Ii is the carbon dioxide emission coefficient for installing and consuming the ith energy source, I Pi is the energy consumption for installing the inner wall decoration material, For installing the energy consumption of the lighting lamp, eta is the equipment installation efficiency, ir is the type of the energy consumed by installation, and I i is the energy consumption of different installation modes;
The carbon emission C 0 at the tunnel light environment operation stage was obtained by:
C0＝(n(A)p(A))×t×365Tq×EF
Wherein C O is the electric power for the lighting device, a= { a 1,A2,A3,…,An } can be used to represent all lighting fixtures used in the light environment, wherein a n is the nth lighting fixture, vector n (A)＝(n1,n2,n3,…,nn) wherein n n is the number of the nth lighting fixture used, vector p (A)＝(p1,p2,p3,…,pn) wherein p n is the rated power of the nth lighting fixture, E F is the carbon dioxide emission coefficient for electric energy consumption, T q is the tunnel life cycle, year, T is the light-on time per day in the tunnel operation stage, and Hour;
The carbon emission C M at the tunnel light environment curing stage was obtained by:
Wherein U Pi is the service life of the ith inner wall decorative material in the tunnel light environment, year, U Li is the service life of the ith tunnel lighting lamp, hour, t is the daily lighting time in the tunnel operation stage, hour, C PPi is the total carbon emission of the ith inner wall decorative material, C PLi is the total carbon emission of the ith tunnel lighting lamp, C TPi is the carbon emission generated by the transportation of the ith inner wall decorative material, and C TLi is the carbon emission generated by the transportation of the ith tunnel lighting lamp;
Step 4, calculating to obtain the economic cost of the whole life cycle according to the tunnel light environment design scheme in the step 2;
Step 5, carrying out calculation on the actual brightness L av of the road surface in the step 2 to the step 4, the carbon emission amount of the whole life cycle and the economic cost of the whole life cycle into a whole life cycle model of the tunnel light environment as follows:
Wherein: l av is the road surface brightness of the tunnel light environment design scheme, B is the economic cost of the whole life cycle of the tunnel light environment design scheme, C is the carbon emission of the whole life cycle of the tunnel light environment design scheme, L avmin is the minimum road surface brightness of all tunnel light environment design schemes, B max is the maximum value of the carbon emission of the whole life cycle of all tunnel light environment design schemes, C max is the maximum value of the economic cost of the whole life cycle of all tunnel light environment design schemes, J L is the road surface brightness evaluation index value of the tunnel light environment design scheme, J s is the economic cost evaluation index value of the whole life cycle of the tunnel light environment design scheme, and J C is the carbon emission evaluation index value of the whole life cycle of the tunnel light environment design scheme;
The minimum brightness value, the maximum carbon emission value and the maximum economic cost value in each scheme are selected as reference values of the group of design schemes to carry out dimension unification treatment, and then the tunnel light environment design schemes are visually evaluated according to the calculation results;
And (3) when a plurality of tunnel light environment design schemes exist, repeating the steps 1-4, and carrying out calculation and evaluation on the tunnel light environment full life cycle model in the step 5 after calculation of the average brightness of the road surface, the full life cycle carbon emission and the economic cost of all tunnel light environment design schemes are completed.
2. The method for full life cycle evaluation of a multi-dimensional tunnel light environment design scheme according to claim 1, wherein: in the step 2, the actual brightness of the road surface in the tunnel light environment design scheme is as follows:
Calculating the number n of lamps affecting the road surface calculation point by the following steps:
wherein n is the number of lamps affecting p points, S 0 is the length (m) of the illumination area calculated by the road surface, S is the arrangement interval (m) of the lamps, ω is the arrangement coefficient of the lamps, 2 is taken when the lamps are symmetrically arranged, and 1 is taken when the lamps are arranged in other modes
The average illuminance E av of the tunnel road surface was calculated by:
Wherein E av is the average illuminance of a tunnel pavement, I C(γ+β) is the light intensity value (cd) of a lamp at a calculation point, phi is the rated luminous flux (lm) of the lamp, gamma is the included angle (°) between the calculation point and the central axis of the tunnel lamp, beta is the installation included angle (°) of the tunnel illumination lamp, h is the installation height (M) of the tunnel illumination lamp, M is a maintenance coefficient, rho ωV is the reflectivity of a tunnel vault decorative material, rho ωW is the reflectivity of a tunnel side wall decorative material, and M is the number of calculation points; wherein the value of a 0、a1、a2 is related to omega; the road surface actual luminance L av is calculated by:
Wherein L av is the average brightness of the road surface, K is the conversion coefficient between the average brightness and the average illumination of the road surface, and the coefficient is preferably obtained by adopting field actual measurement data; if no actual measurement condition exists, the black asphalt pavement is usually 15 lx/(cd.m -2), and the cement concrete pavement is 10 lx/(cd.m -2).
3. The method for full life cycle evaluation of a multi-dimensional tunnel light environment design scheme according to claim 1, wherein: in the step 4, the economic cost of the whole life cycle of the tunnel light environment is as follows: construction cost, maintenance cost, electricity cost and total life cycle economic cost B of tunnel light environment are expressed as follows:
B＝BC+B0+BM
Wherein, B is the net present value of the total life cycle cost of the tunnel light environment, B C is the net present value of the construction cost of the tunnel light environment, B O is the net present value of the operation cost of the tunnel light environment (the electricity cost for illumination), and B M is the net present value of the maintenance cost of the tunnel light environment;
the method for calculating the economic cost of each whole life cycle in the tunnel light environment design scheme comprises the following steps:
the full life cycle economic cost B C of the tunnel light environment design scheme construction part is obtained through the following calculation:
Wherein A Pi is the unit price of each type of tunnel inner wall decorative material, A Li is the unit price of each type of interior decorative lamp, N i is the number of used tunnel lamps, S i is the coating area of the ith type of tunnel inner decorative material, N is the number of tunnel illumination lamps, and k is the number of tunnel inner wall decorative material types;
The full life cycle economic cost B 0 of the tunnel light environment design scheme operation part is obtained through the following calculation:
B0(i)＝(n(A)p(A))×t×365FE(1+Δ1)i-1
Wherein R is the discount rate, F E is the electricity cost, delta 1 is the annual increase rate of the electricity cost, B 0(i) is the economic cost for the operation of the tunnel light environment in the ith year, and A= { A 1,A2,A3,…,An } can be used for representing all used lighting fixtures in the light environment, wherein A n is the nth lighting fixture, a vector n (A)＝(n1,n2,n3,…,nn) wherein n n is the number used by the nth lighting fixture, and a vector p (A)＝(p1,p2,p3,…,pn) wherein p n is the rated power of the nth lighting fixture;
the full life cycle economic cost B M of the tunnel light environment design scheme maintenance part is obtained through the following calculation:
BMW(i)＝N˙S˙FW(1+Δ2)i-1
Wherein B MW(i) is the economic cost for cleaning the tunnel in the ith Year, B MR(i) is the economic cost for maintaining tunnel facilities in the ith Year, A Pi is the unit price of each tunnel inner wall decoration material, A Li is the unit price of each interior decoration lamp, U Pi is the service life of the ith inner wall decoration material in a tunnel light environment, year, U Li is the service life of the ith tunnel illumination lamp, hour, N is the number of times of planned cleaning, F W is the cleaning operation cost, S is the total area of the inner wall of the cleaning tunnel, N i is the number of used tunnel lamps in the ith Year, S i is the coating area of the decoration material in the ith tunnel, delta 2 is the annual increase rate of the cleaning operation cost, delta 3 is the annual increase rate of the maintenance cost, and R is the discount rate.
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