CN105718635A - Building energy-saving evaluation system qualitative and quantified indicator weight design method - Google Patents

Abstract

A building energy-saving evaluation system qualitative and quantified indicator weight design method. The present invention relates to a building energy-saving evaluation system qualitative and quantified indicator weight design method. An objective of the present invention aims to solve the problem that a current building energy-saving indicator evaluation system in freezing areas is not sound. The method is implemented by the following technical scheme: step 1, calculating each quantified indicator weight eta i; step 2, calculating an actual power consumption proportion coefficient theta i; step 3, calculating each quantified indicator score Ti; and step 4, calculating a total quantified evaluation score T. The method provided by the present invention is applied to the building energy-saving technical field in the building environment and heat ventilation air conditioning science.

Description

A kind of evaluation systems of building energy efficiency is qualitative and the method for designing of quantitative target weight

Technical field

The present invention relates to that evaluation systems of building energy efficiency is qualitative and the method for designing of quantitative target weight.

Background technology

For developed country, it is later that China sets up evaluation systems of building energy efficiency.In the codes and standards of the building energy conservation class that China has put into effect, latest edition has (relevant with severe cold area): " severe cold and cold district energy Saving Design of Residential Buildings standard " (JGJ26-2010), " public building energy design standard " (DGJ08-107-2012), " green building assessment standard " (GB/T50378-2014), " Residential Buildings Energy examination criteria " (JGJ/T132-2009), " public building energy examination criteria " (JGJ/T177-2009), " civil buildings heating ventilator and In Air Conditioning Design specification " (GB50736-2012), " building external doors and windows is airtight, watertight, resisting wind press capacity classification and detection method " (GB/T7106-2008).Wherein, only each Energy efficiency evaluation index is quantified by " green building assessment standard " (GB/T50378-2014), other codes and standards has all been merely given as index power save parameters scope, but the contribution of building energy conservation is not yet highlighted by parameter value size, the building energy conservation evaluation methodology that severe cold area quantifies just more is not known where to begin.

Summary of the invention

The invention aims to solve the existing severe cold area unsound problem of index of construction energy conservation appraisement system, and provide a kind of evaluation systems of building energy efficiency qualitative and the method for designing of quantitative target weight.

Above-mentioned goal of the invention is achieved through the following technical solutions:

Step one, calculate each quantitative target weight η_i；

Step 2, calculating actual consumption proportionality coefficient θ_i；

Step 3, according to θ_iSolve each quantitative target score T_i；

Step 4, according to η_iAnd T_iCalculate quantitative assessment PTS T.

Invention effect:

A kind of evaluation systems of building energy efficiency proposed by the present invention is qualitative and the method for designing of quantitative target weight, evaluates a building, breach original can only be whether energy-conservation with subjective judgment, but be embodied in marking, judge whether building energy-conservation by data；

Building energy conservation analysis is a complexity and loaded down with trivial details process, is by the research of index of construction energy conservation is decomposed into a kind of method of thinking and the technological means that some elementary factors are studied complicated objective objects.Each energy-saving index has, because of the difference of its essence, the situation generation that some manpowers can not be in evaluation procedure, and some index can quantify, and some cannot.So according to the attribute of index, evaluation index being divided into two types, a class is not quantifiable indicator, i.e. qualitative index；Another kind of is quantifiable indicator, i.e. quantitative target.According to qualitative and quantitative difference, building energy conservation evaluation is carried out in two stages: qualitative evaluation stage and quantitative assessment stage.The analysis and research of whole building energy conservation are the unifications of quality and quantity.

The analysis of building energy conservation matter and qualitative analysis, be describe for the characteristic relevant to energy conservation characteristic, energy-conservation situation, power saving etc., by theory and practice experience inference, draw the thinking process that a certain tendentiousness judges；Quantitative analysis and quantitative analysis, it is for the measurement relevant to energy conservation characteristic, energy-conservation situation, power saving etc. and experimental test data, carry out data process by corresponding mathematics computing model, according to relevant index or standard, draw the thinking process of judgement or quantitative relation to a certain degree.

Evaluation systems of building energy efficiency adopts ten point system, all adopts index weights and score product add and draw total score in whole evaluation procedure.In the qualitative evaluation stage, each evaluation index carrying out Energy efficiency evaluation and provides score, each index score weighted value product corresponding thereto adds and show that qualitative evaluation stage total score T, T > 6 enters quantitative assessment；T≤6 enter building energy conservation diagnosis.Quantitative assessment process is similar to qualitative evaluation, according to total score T, building energy conservation is divided into four grades: T >=9 are built for Samsung；6≤T < 9 is two star buildings；4≤T < 6 is a star building；T < 4 off grade, enters the building energy conservation optimizing phase.

Building energy conservation grade classification, is shown in following table

Concrete application prospect is as follows:

1, sustainable development is conducive to

In " 12 " period, energy-saving and emission-reduction work entrance is assaulted fortified position the phase.China has become global first energy-consuming big country, and wherein building energy consumption is the fastest-rising field of energy resource consumption, particularly northern area building energy consumption ratio is very, and in being gradually increasing trend.Relevant expert will be it is expected that the potential market scale of China's building energy-saving renovation and lifting will exceed trillion yuan, and north potentiality are bigger.

The foundation of evaluation systems of building energy efficiency and effectively applying, the height of building energy conservation performance can not only be clearly distinguished, departments of government also can by this appraisement system simultaneously, grasp and effectively examine instrument, for putting into effect new energy-saving act, policy, standard and carrying out relevant Decision and there has also been reliable foundation, and the exploitation of dependent evaluation software can be promoted, positive role is played in cultivation and development to building energy consumption evaluation industry.One of basic link that research evaluation systems of building energy efficiency is promoted as building energy conservation exploitation, prior meaning is in that to promote the overall development level of building trade, improve the scientific and technological content that building is built, promote the benign cycle of building trade economy, enable building trade to obtain sustainable development.

2, the suitability is good

The method for designing of evaluation systems of building energy efficiency quantitative target weight is applicable not only to the Building Energy-saving Work of severe cold area, is suitable for his regional architecture energy-saving index appraisement system simultaneously.

3, computational methods science

The method adopting experiment test to combine with simulation, is mutually confirmed by measured data and analog data, draws the weighted value that each index is final, and data reliability is high.

4, the investment of building is reduced

Compared with traditional architecture, reference index is marked, and have employed suitable energy-saving technological measure, such as suitably controls shape coefficient of building, i.e. the ratio of building appearance area and its volume surrounded；The novel wall materials such as the air-entrained concrete building block that employing heat-insulating property is good；Adopt wall thermal insulating, roof heat insulation, hollow pair glass window, thermal insulating door thermally insulated door and energy-saving type air conditioner etc., reduce the heat radiation of building enclosure, improve the quality of building thermal environments, improve the thermal efficiency of heating system, save the energy, reduce the use cost in house.

Quantitative target weight arranges the method adopting experiment test to combine with simulation, adopt heat-flow meter method and temperature control box-heat-flow meter method two kinds means of testing on the one hand, choose main cities, severe cold area) representative many, opening in high-rise residential buildings and public building, its energy-efficient performance is carried out on-the-spot test.

On the other hand the building chosen is carried out software simulation, for guaranteeing the credibility calculated, adopt DeST, sky just two kinds of softwares to carry out calculation and check, mutually confirmed by measured data and analog data, draw the weighted value that each index is final.In evaluation systems of building energy efficiency, the design of quantitative target weight is core and the emphasis of whole appraisement system, and the feasibility of the method for designing of quantitative target weight is most important to setting up of building energy conservation system.

Therefore, the Building Energy-saving Work of severe cold area can not only be played substantive help by the foundation of severe cold area index of construction energy conservation evaluation methodology, the enforcement of other regional architecture energy conservations is played certain impetus simultaneously.

Accompanying drawing explanation

Fig. 1 is flow chart of the present invention；

Fig. 2 is Residential Buildings Energy indicator evaluation system one-level qualitative index weight schematic diagram；

Fig. 3 is Residential Buildings Energy indicator evaluation system two-level index weight schematic diagram；

Fig. 4 is public building energy indicator evaluation system one-level qualitative index weight schematic diagram；

Fig. 5 is two grades of qualitative index weight schematic diagrams of public building energy indicator evaluation system.

Detailed description of the invention

Detailed description of the invention one: present embodiment is described in conjunction with Fig. 1, a kind of evaluation systems of building energy efficiency of present embodiment is qualitative and the method for designing of quantitative target weight, specifically prepares according to following steps:

Step one, calculate each quantitative target weight η_i；

Step 2, calculating actual consumption proportionality coefficient θ_i；

Step 3, according to θ_iSolve each quantitative target score T_i；

Step 4, according to η_iAnd T_iCalculate quantitative assessment PTS T.

Detailed description of the invention two: present embodiment and detailed description of the invention one the difference is that: described step one calculates each quantitative target weight η_i；Detailed process is:

The energy consumption that whole architectural exterior-protecting construction energy consumption in winter is formed by each several part heat transfers such as exterior wall, roof, exterior window, external doors forms, and it is weight that each of which part accounts for the ratio of total energy consumption；

${\mathrm{\&eta;}}_i=\frac{Q_i}{\underset{i=1}{\overset{4}{\mathrm{\&Sigma;}}}{Q}_i},i=\mathrm{1,2,3,4}$

In formula, η_iFor each quantitative target weight；

Q_iEach quantitative target energy consumption, W/m is built for limit value²；

For quantitative target total energy consumption, W/m²。

Other step and parameter and detailed description of the invention one are identical.

Detailed description of the invention three: present embodiment and detailed description of the invention one or two the difference is that: described limit value builds each quantitative target energy consumption Q_iFor:

Q_i=KF (t_n-t_w)

Wherein, K is the peripheral structure heat transfer coefficient that specification specifies, for existing specification；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Other step and parameter and detailed description of the invention one or two are identical.

Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three the difference is that: described step 2 calculates actual consumption proportionality coefficient θ_i；Detailed process is:

Actual consumption proportionality coefficient θ_iAs composing a point foundation, being defined as participates in evaluation and electing builds the difference of each quantitative target energy consumption limit value building quantitative target energy consumption corresponding thereto and the ratio of limit value building quantitative target energy consumption；θ_iMore little, energy-saving effect is more good；I is each quantitative target of exterior wall, roof, exterior window or external door；

${\mathrm{\&theta;}}_i=\frac{{Q_i}^{\&prime;}-Q_i}{Q_i},i=1,2,3,4$

In formula,

θ_iFor each quantitative target actual consumption proportionality coefficient；

Q_i' build each quantitative target energy consumption, W/m for participating in evaluation and electing²；

Q_iEach quantitative target energy consumption, W/m is built for limit value²。

Other step and one of parameter and detailed description of the invention one to three are identical.

Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four the difference is that: described in participate in evaluation and electing each quantitative target energy consumption Q of building_i' it is:

Q_i'=KF (t_n-t_w)

In formula, K is the peripheral structure heat transfer coefficient that test records；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Other step and one of parameter and detailed description of the invention one to four are identical.

Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five the difference is that: according to θ in described step 3_iSolve each quantitative target score T_i；Detailed process is:

The methods of marking adoption rate summation of quantitative target, marks step by step successively；Be divided into benchmark (limit value building) with 6, if upper and lower limit score value respectively 10 points and 0 point, evaluate building score lower than 0 point with higher than 10 respectively by 0 point and 10 points calculating；According to the weight of each first class index, it is added summation by score step by step with weight product, obtains the PTS in building quantitative assessment stage, according to score divided rank；Shown in concrete methods of marking equation below:

T_i=6 × (1-θ_i) i=1,2,3,4

In formula, T_iFor each quantitative target score；

θ_iFor each quantitative target actual consumption proportionality coefficient.

Other step and one of parameter and detailed description of the invention one to five are identical.

Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six the difference is that: according to η in described step 4_iAnd T_iCalculate quantitative assessment PTS T；Detailed process is:

$T=\underset{i=1}{\overset{4}{\&Sigma;}}{\mathrm{\&eta;}}_i{T}_i,i=1,2,3,4$

In formula,

T_iFor each quantitative target score；

T is quantitative assessment PTS；

η_iFor each quantitative target weight；

The marking of building energy conservation system carries out in two stages: one is that qualitative index is given a mark, and gives a mark for the first stage；Two is that quantitative target is given a mark, and gives a mark for second stage；

Expert estimation determines qualitative index weight, calculates (defining whether to meet marking according to specification) quantitative assessment PTS according to qualitative index weight and each qualitative index score, judges whether to enter the quantitative assessment stage according to qualitative index score)；

Qualitative evaluation stage score T > 6, enters the building energy conservation quantitative analysis evaluation stage；

Qualitative evaluation stage score T≤6, building energy conservation evaluation terminates or enters the building not energy-conservation cause diagnosis stage；

Enter quantitative Phase Evaluation, by the calculating that quantitative target is energy-conservation, draw quantitative Phase Evaluation PTS T, and using score value T as the foundation dividing building energy conservation grade:

T >=9, building energy conservation grade is Samsung building, and grade is more high more good, and Samsung building is best；

6≤T < 9, building energy conservation grade is two star buildings；

4≤T < 6, building energy conservation grade is a star building；

T < 4, building energy conservation off grade, the building energy conservation optimizing phase can be entered.

Qualitative index weight employing Application of Delphi Method, its essence is that method ask by the anonymous letter of a kind of feedback, is a kind of process utilizing letter inquiry form to carry out collective's anonymity thoughts communication；This method has representative widely and fairness, comparatively reliably.Each qualitative energy-saving index weight is by after the suggestion of obtaining association area expert, senior personnel, government's relevant portion, research worker, skilled industrial worker, common society personage etc., carry out arranging, conclude, add up, anonymity feeds back to each survey respondent again, again consult on, concentrate again, feed back again, until obtaining concordance suggestion.

Qualitative stage is the first stage that building energy conservation is evaluated, being to inspection and the constraint of building rigid condition, the Residential Buildings Energy qualitative analysis stage is mainly carried out Energy efficiency evaluation with design data, construction information and the foundation such as architectural detail structure and building energy conservation Optimized Measures by qualitative stage.

The major measure that China's Residential Buildings in Severe Cold Region energy-saving design present stage takes has, and controls shape coefficient of architecture, window-wall ratio, adopts the novel wall material that the heat-insulating properties such as air entrained concrete module are good；The composite adopting heat conductivity little carries out the insulation of the peripheral structures such as body of wall, roofing, ground；Adopt double-deck or three-layer efficient energy-saving heat preserving door and window etc..By above measure, reduce building enclosure heat radiation, improve indoor thermal environment quality.Energy factor according to severe cold area determines qualitative stage first class index totally five, including: enclosure structure heat transfer coefficient, area ratio of window to wall, shape coefficient of building, building and building enclosure detail structure, indoor heating system.

According to compulsive clause or the important provision regulation of national and that severe cold area, northeast is existing relevant energy saving igniter, energy conservation project construction quality accident specification and energy saving building evaluation criterion, each two-level index must be divided into Three Estate: 10 points, 6 points, 0 point；Each two-level index score is provided according to two-level index satisfaction degree.According to the weight of each two-level index, then it is added summation by score step by step with weight product, obtains the PTS in building qualitative evaluation stage.

It is enclosure structure heat transfer coefficient, area ratio of window to wall, shape coefficient of building, building and building enclosure detail structure, indoor heating system that Residential Buildings Energy indicator evaluation system qualitative index includes first class index；

Residential Buildings Energy indicator evaluation system qualitative index includes two-level index:

Enclosure structure heat transfer coefficient includes outer heat transfer coefficient of window, heat transfer coefficient of outer wall, roofing heat transfer coefficient, family door heat transfer coefficient；

Area ratio of window to wall includes north orientation area ratio of window to wall, East and West direction area ratio of window to wall, south orientation area ratio of window to wall；

Shape coefficient of building includes shape coefficient of building；

The airtight grade of door and window, architectural detail that building and building enclosure detail structure include construct, building enclosure detail structure；

Indoor heating system indoor heating system；

It is enclosure structure heat transfer coefficient, area ratio of window to wall, shape coefficient of building, building and building enclosure detail structure, operation management that public building energy indicator evaluation system qualitative index includes first class index；

Public building energy indicator evaluation system qualitative index includes two-level index:

Enclosure structure heat transfer coefficient includes outer heat transfer coefficient of window, heat transfer coefficient of outer wall, roofing heat transfer coefficient, family door heat transfer coefficient；

Area ratio of window to wall includes north orientation area ratio of window to wall, East and West direction area ratio of window to wall, south orientation area ratio of window to wall；

Shape coefficient of building includes shape coefficient of building；

Building and building enclosure detail structure include exterior window and the airtight grade of transparent curtain wall, architectural detail structure, building enclosure detail structure；

Operation management includes operation management measure；

Quantitative target weight adopts the method that mathematical model simulation calculates and experiment detection combines.Adopt on the one hand heat-flow meter method and temperature control box-heat-flow meter method two kinds means of testing, choose multilamellar representative in main cities, severe cold area, opening in high-rise residential buildings and public building and its energy-efficient performance is carried out on-the-spot test assessment；It is simulated calculating to the building founding mathematical models chosen on the other hand, adopts DeST, sky just two kinds of softwares to carry out checking to ensure the accuracy calculated.Data and analog data are confirmed mutually by experiment, draw the weighted value that each index is final.

The index in Residential Buildings in Severe Cold Region energy-saving constant-volume stage determines that to meet two aspects requires: 1. representative, and quantitative stage index is applicable to the regional feature of severe cold area, and prominent severe cold area winter is cold-proof, the requirement of heat-preserving anti-freezing；2. there is operability, under the support of prior art, it is simple to experiment detection and mathematical modeling, it is ensured that data have high fidelity, Energy efficiency evaluation system also has certain operability and cognition degree simultaneously.According to above 2 requirements, in numerous factors affecting Residential Buildings in Severe Cold Region energy-saving effect, refine goes out four indices, including body of wall, forms, roof, Air Infiltration.

Other step and one of parameter and detailed description of the invention one to six are identical.

Embodiment one:

Qualitative and quantitative target weight the method for designing of a kind of evaluation systems of building energy efficiency of the present embodiment is specifically prepared according to following steps:

Step one, calculate each quantitative target weight η_i；

${\mathrm{\&eta;}}_i=\frac{Q_i}{\underset{i=1}{\overset{4}{\&Sigma;}}{Q}_i},i=1,2,3,4$

In formula,

η_iFor each quantitative target weight；

Q_iEach quantitative target energy consumption, W/m is built for limit value²；

For quantitative target total energy consumption, W/m²。

Q_i=KF (t_n-t_w)

Wherein,

K is the peripheral structure heat transfer coefficient that specification specifies；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Step 2, calculating actual consumption proportionality coefficient θ_i；

${\mathrm{\&theta;}}_i=\frac{{Q_i}^{\&prime;}-Q_i}{Q_i},i=1,2,3,4$

In formula,

θ_iFor each quantitative target actual consumption proportionality coefficient；

Q_i' build each quantitative target energy consumption, W/m for participating in evaluation and electing²；

Q_iEach quantitative target energy consumption, W/m is built for limit value²。

The each quantitative target energy consumption Q of the building that participates in evaluation and electing_i' it is:

Q_i'=KF (t_n-t_w)

In formula,

K is the peripheral structure heat transfer coefficient that test records；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Step 3, according to θ_iSolve each quantitative target score T_i；

T_i=6 × (1-θ_i) i=1,2,3,4

In formula,

T_iFor each quantitative target score；

θ_iFor each quantitative target actual consumption proportionality coefficient.

Other step and one of parameter and detailed description of the invention one to five are identical.

Step 4, according to η_iAnd T_iCalculate quantitative assessment PTS T；

$T=\underset{i=1}{\overset{4}{\&Sigma;}}{\mathrm{\&eta;}}_i{T}_i,i=1,2,3,4$

In formula,

T_iFor each quantitative target score；

T is quantitative assessment PTS；

η_iFor each quantitative target weight；

The marking of building energy conservation system carries out in two stages: one is that qualitative index is given a mark, and gives a mark for the first stage；Two is that quantitative target is given a mark, and gives a mark for second stage；

Qualitative evaluation stage score T > 6, enters the building energy conservation quantitative analysis evaluation stage；

Qualitative evaluation stage score T≤6, building energy conservation evaluation terminates or enters the building not energy-conservation cause diagnosis stage；

Enter quantitative Phase Evaluation, by the calculating that quantitative target is energy-conservation, draw quantitative Phase Evaluation PTS T, and using score value T as the foundation dividing building energy conservation grade:

T >=9, building energy conservation grade is Samsung building, and grade is more high more good, and Samsung building is best；

6≤T < 9, building energy conservation grade is two star buildings；

4≤T < 6, building energy conservation grade is a star building；

T < 4, building energy conservation off grade, the building energy conservation optimizing phase can be entered.

For verifying the feasibility of appraisement system, choosing the actual building in Changchun City and evaluated, evaluation result is shown in table 1 below.

Table 1 evaluation systems of building energy efficiency instance analysis

Embodiment two:

Qualitative and quantitative target weight the method for designing of a kind of evaluation systems of building energy efficiency of the present embodiment is specifically prepared according to following steps:

Step one, calculate each quantitative target weight η_i；

${\mathrm{\&eta;}}_i=\frac{Q_i}{\underset{i=1}{\overset{4}{\&Sigma;}}{Q}_i},i=1,2,3,4$

In formula,

η_iFor each quantitative target weight；

Q_iEach quantitative target energy consumption, W/m is built for limit value²；

For quantitative target total energy consumption, W/m²。

Q_i=KF (t_n-t_w)

Wherein,

K is the peripheral structure heat transfer coefficient that specification specifies；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Step 2, calculating actual consumption proportionality coefficient θ_i；

${\mathrm{\&theta;}}_i=\frac{{Q_i}^{\&prime;}-Q_i}{Q_i},i=1,2,3,4$

In formula,

θ_iFor each quantitative target actual consumption proportionality coefficient；

Q_i' build each quantitative target energy consumption, W/m for participating in evaluation and electing²；

Q_iEach quantitative target energy consumption, W/m is built for limit value²。

The each quantitative target energy consumption Q of the building that participates in evaluation and electing_i' it is:

Q_i'=KF (t_n-t_w)

In formula,

K is the peripheral structure heat transfer coefficient that test records；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

Step 3, according to θ_iSolve each quantitative target score T_i；

T_i=6 × (1-θ_i) i=1,2,3,4

In formula,

T_iFor each quantitative target score；

θ_iFor each quantitative target actual consumption proportionality coefficient.

Other step and one of parameter and detailed description of the invention one to five are identical.

Step 4, according to η_iAnd T_iCalculate quantitative assessment PTS T；

$T=\underset{i=1}{\overset{4}{\&Sigma;}}{\mathrm{\&eta;}}_i{T}_i,i=1,2,3,4$

In formula,

T_iFor each quantitative target score；

T is quantitative assessment PTS；

η_iFor each quantitative target weight；

The marking of building energy conservation system carries out in two stages: one is that qualitative index is given a mark, and gives a mark for the first stage；Two is that quantitative target is given a mark, and gives a mark for second stage；

Qualitative evaluation stage score T > 6, enters the building energy conservation quantitative analysis evaluation stage；

Qualitative evaluation stage score T≤6, building energy conservation evaluation terminates or enters the building not energy-conservation cause diagnosis stage；

Enter quantitative Phase Evaluation, by the calculating that quantitative target is energy-conservation, draw quantitative Phase Evaluation PTS T, and using score value T as the foundation dividing building energy conservation grade:

T >=9, building energy conservation grade is Samsung building, and grade is more high more good, and Samsung building is best；

6≤T < 9, building energy conservation grade is two star buildings；

4≤T < 6, building energy conservation grade is a star building；

T < 4, building energy conservation off grade, the building energy conservation optimizing phase can be entered.

Table 2 Residential Buildings Energy indicator evaluation system qualitative index

Table 3 public building energy indicator evaluation system qualitative index

Based on group AHP (AHP) agriculture products weight

According to expert's marking situation to each index, analytic hierarchy process (AHP) is utilized scientifically to calculate the weight coefficient of each index.Analytic hierarchy process (AHP) is being compared by each index score value, it is determined that each index importance size, and this system importance interval division adopts 9 methods that professor Saaty recommends.

This research system chooses 42 experts, professor forms expert group, and panel member should be the personnel possessing deeper theoretical knowledge and practical experience in this specialty, including: college professor, practitioner senior in the industry, technical staff, designer etc..

Body series qualitative index comprises 5 first class index, 12 two-level index, providing index weights consulting investigation letter and amount to 42 parts, questionnaire reclaims and amounts to 31 parts, and wherein 7 parts of calcellations are unavailable, remain 24 parts, build individual's first class index judgment matrix 24, individual's two-level index judgment matrix 72, first class index Synthetic Judgement Matrix 1, two-level index Synthetic Judgement Matrix 3, amounts to 100.

Residential Buildings Energy indicator evaluation system one-level qualitative index weight, such as Fig. 2；

Residential Buildings Energy indicator evaluation system two-level index weight, such as Fig. 3；

Public building energy indicator evaluation system one-level qualitative index weight, such as Fig. 4；

Two grades of qualitative index weights of public building energy indicator evaluation system, such as Fig. 5；

Standard is mentioned before evaluating

(1) according to the regulation in " civil buildings heating ventilator and In Air Conditioning Design specification GB50736-2012 ", civil buildings heat supply in winter temperature should meet 18-24 DEG C；

(2) meet " severe cold and cold district energy Saving Design of Residential Buildings standard JGJ26-2010 " Table A O.1-2 in about the requirement of heat-consuming index of building, the heat-consuming index of all kinds of buildings requires as shown in the table.

Evaluation content

Compulsive clause or important provision regulation according to national and that severe cold area, northeast is existing relevant energy saving igniter, energy conservation project construction quality accident specification and energy saving building evaluation criterion, each two-level index score is subdivided into Three Estate: 10 points, 6 points, 0 point, the satisfaction degree evaluating clause according to two-level index provides each two-level index score, sees attached list in detail.

Qualitative index " area ratio of window to wall " standards of grading

Qualitative index " shape coefficient of building " standards of grading

Qualitative index " door and window tightness class " standards of grading

Qualitative index " architectural detail structure " standards of grading

Qualitative index " building enclosure detail structure " standards of grading

Qualitative index " indoor heating system " standards of grading

Qualitative evaluation stage score T > 6, enters the building energy conservation quantitative analysis evaluation stage；

Qualitative evaluation stage score T≤6, building energy conservation evaluation terminates or enters the building not energy-conservation cause diagnosis stage；

The methods of marking adoption rate summation of quantitative target, marks step by step successively；Be divided into benchmark (limit value building) with 6, if upper and lower limit score value respectively 10 points and 0 point, evaluate building score lower than 0 point with higher than 10 respectively by 0 point and 10 points calculating；According to the weight of each first class index, it is added summation by score step by step with weight product, obtains the PTS in building quantitative assessment stage, according to score divided rank；

The present invention also can have other various embodiments; when without departing substantially from present invention spirit and essence thereof; those skilled in the art are when can make various corresponding change and deformation according to the present invention, but these change accordingly and deformation all should belong to the scope of the claims appended by the present invention.

Claims (7)

1. an evaluation systems of building energy efficiency is qualitative and the method for designing of quantitative target weight, it is characterised in that qualitative and quantitative target weight the method for designing of a kind of evaluation systems of building energy efficiency specifically carries out according to following steps:

Step one, calculate each quantitative target weight η_i；

Step 2, calculating actual consumption proportionality coefficient θ_i；

Step 3, according to θ_iSolve each quantitative target score T_i；

Step 4, according to η_iAnd T_iCalculate quantitative assessment PTS T.

2. a kind of evaluation systems of building energy efficiency is qualitative according to claim 1 and the method for designing of quantitative target weight, it is characterised in that: described step one calculates each quantitative target weight η_i；Detailed process is:

${\mathrm{\&eta;}}_i=\frac{Q_i}{\underset{i=1}{\overset{4}{\&Sigma;}}{Q}_i}$ I=1,2,3,4

In formula,

η_iFor each quantitative target weight；

I is each quantitative target of exterior wall, roof, exterior window or external door；

Q_iEach quantitative target energy consumption, W/m is built for limit value²；

For quantitative target total energy consumption, W/m²。

3. a kind of evaluation systems of building energy efficiency is qualitative according to claim 2 and the method for designing of quantitative target weight, it is characterised in that: described limit value builds each quantitative target energy consumption Q_iFor:

Q_i=KF (t_n-t_w)

Wherein,

K is the peripheral structure heat transfer coefficient that specification specifies；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

4. a kind of evaluation systems of building energy efficiency is qualitative according to claim 3 and the method for designing of quantitative target weight, it is characterised in that: described step 2 calculates actual consumption proportionality coefficient θ_i；Detailed process is:

${\mathrm{\&theta;}}_i=\frac{{Q_i}^{\&prime;}-Q_i}{Q_i}$ I=1,2,3,4

In formula,

θ_iFor each quantitative target actual consumption proportionality coefficient；

Q_i' build each quantitative target energy consumption, W/m for participating in evaluation and electing²；

Q_iEach quantitative target energy consumption, W/m is built for limit value²。

5. a kind of evaluation systems of building energy efficiency is qualitative according to claim 4 and the method for designing of quantitative target weight, it is characterised in that: described in participate in evaluation and electing each quantitative target energy consumption Q of building_i' it is:

Q_i'=KF (t_n-t_w)

In formula,

K is the peripheral structure heat transfer coefficient that test records；

F is peripheral structure area, m²；

t_nFor indoor temperature, DEG C；

t_wFor outdoor temperature in winter, DEG C.

6. a kind of evaluation systems of building energy efficiency is qualitative according to claim 5 and the method for designing of quantitative target weight, it is characterised in that: according to θ in described step 3_iSolve each quantitative target score T_i；Detailed process is:

T_i=6 × (1-θ_i) i=1,2,3,4

In formula,

T_iFor each quantitative target score；

θ_iFor each quantitative target actual consumption proportionality coefficient.

7. a kind of evaluation systems of building energy efficiency is qualitative according to claim 6 and the method for designing of quantitative target weight, it is characterised in that: according to η in described step 4_iAnd T_iCalculate quantitative assessment PTS T；Detailed process is:

$T=\underset{i=1}{\overset{4}{\&Sigma;}}{\mathrm{\&eta;}}_i{T}_i$ I=1,2,3,4

In formula,

T_iFor each quantitative target score；

T is quantitative assessment PTS；

η_iFor each quantitative target weight；

The marking of building energy conservation system carries out in two stages: one is that qualitative index is given a mark, and gives a mark for the first stage；Two is that quantitative target is given a mark, and gives a mark for second stage；

Qualitative evaluation stage score T > 6, enters the building energy conservation quantitative analysis evaluation stage；

Qualitative evaluation stage score T≤6, building energy conservation evaluation terminates or enters the building not energy-conservation cause diagnosis stage；

Enter the quantitative analysis evaluation stage, using score value T as the foundation dividing building energy conservation grade:

T >=9, building energy conservation grade is Samsung building；

6≤T < 9, building energy conservation grade is two star buildings；

4≤T < 6, building energy conservation grade is a star building；

T < 4, building energy conservation off grade, enter the building energy conservation optimizing phase.