CN108846177A - The calculation method and system of building refrigeration duty - Google Patents
The calculation method and system of building refrigeration duty Download PDFInfo
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- CN108846177A CN108846177A CN201810541733.4A CN201810541733A CN108846177A CN 108846177 A CN108846177 A CN 108846177A CN 201810541733 A CN201810541733 A CN 201810541733A CN 108846177 A CN108846177 A CN 108846177A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 208
- 238000004364 calculation method Methods 0.000 title claims abstract description 68
- 238000001816 cooling Methods 0.000 claims abstract description 57
- 238000012546 transfer Methods 0.000 claims abstract description 37
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 239000005357 flat glass Substances 0.000 claims description 13
- 238000012937 correction Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims description 8
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 240000002853 Nelumbo nucifera Species 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 3
- 238000013459 approach Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 18
- 238000006467 substitution reaction Methods 0.000 description 4
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- 238000013461 design Methods 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
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Abstract
The present invention proposes the calculation method and system of a kind of building refrigeration duty, and this approach includes the following steps：Determine buildings exterior-protected structure maximum refrigeration duty goes out current moment t0；It calculates separately in moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5；According to moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of building.The present invention can quickly and easily calculate the refrigeration duty of building, reduce the human cost of designer, and improve the accuracy of computational efficiency and calculated result.
Description
Technical field
The present invention relates to Building Design technical field, in particular to the calculation method of a kind of building refrigeration duty and it is
System.
Background technique
It needs to be determined the cooling and heating load of building before the system schema establishment of the project of progress, build at this stage
There are two types of the calculation of cooling load method of object is general：Transmission function and harmonic reaction method.Both calculation of cooling load methods are all
Need first to calculate the hourly cooling load in each room of whole building, then again by when be added, finally obtain whole building
Design total refrigeration duty.
Both the above calculation method requires to search all kinds of systems of every load in different moments of variant room type
Number, although the design total refrigeration duty obtained is close to true value, excessive due to being related to coefficient, calculating step is complicated, cumbersome, leads
Designer is caused to be easy to appear mistake in calculating process, therefore, efficiency is lower, and calculated result accuracy is not high.
Summary of the invention
The present invention is directed at least solve one of above-mentioned technical problem.
For this purpose, this method being capable of letter an object of the present invention is to provide a kind of calculation method of building refrigeration duty
Single refrigeration duty for rapidly calculating building, reduces the human cost of designer, and improve computational efficiency and calculating
As a result accuracy.
It is another object of the present invention to the computing systems for proposing a kind of building refrigeration duty.
To achieve the goals above, the embodiment of first aspect present invention proposes a kind of calculating side of building refrigeration duty
Method includes the following steps：Determine buildings exterior-protected structure maximum refrigeration duty goes out current moment t0；It calculates separately in the moment t0
When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty
Q4With ventilation refrigeration duty Q5；According to the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, light shine
Bright refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of the building.
In addition, the calculation method of building refrigeration duty according to the above embodiment of the present invention can also have it is following additional
Technical characteristic：
In some instances, personnel's heat dissipation refrigeration duty Q1Calculation method it is as follows：
Wherein, n0For personnel amount, q1For whole heat dissipation capacities of the next personnel of different labor intensity,For cluster coefficient.
In some instances, the equipment cooling refrigeration duty Q2Calculation method it is as follows：
Q2=q2* S,
Wherein, q2For the power density of equipment, S is air-conditioning cooling area.
In some instances, the lighting refrigeration duty Q3Calculation method it is as follows：
Q3=q3* S,
Wherein, q3For lamp power density index, S is air-conditioning cooling area.
In some instances, the heat transfer across wall refrigeration duty Q4Calculation method it is as follows：
Q4=Q6+Q7+Q8,
Wherein, Q6For the heat transfer refrigeration duty of exterior wall and roofing, Q7For the insolation refrigeration duty through windowpane, Q8For outer glass
Load caused by window transition is conducted heat.
In some instances, the ventilation refrigeration duty Q5Calculation method it is as follows：
Q5=n0*M*ρ*(h0-h1)/3600* (1- η),
Wherein, M is fresh air volume needed for each personnel, and ρ is atmospheric density, h0For outdoor air enthalpy, h1For room air enthalpy
Value, η is heat recovery efficiency.
In some instances, the heat transfer refrigeration duty Q of the exterior wall and roofing6Calculation method it is as follows：
Q6=K0*(T0-T1),
Wherein, T0=Ka*(T2+T3), K0For the heat transfer coefficient of exterior wall and roofing, T0For the calculation of cooling load of exterior wall and roofing
Temperature, T1For indoor calculating temperature, KaFor outer surface exothermic coefficient correction value, T2For the calculation of cooling load temperature of exterior wall and roofing
By duration, T3For place correction value.
In some instances, the insolation refrigeration duty Q through windowpane7Calculation method it is as follows：
Q7=Kb*Kc*Kd*Dmax*Ke,
Wherein, KbFor effective area coefficient, KcFor indoor shading coefficient, KdFor glass pane shading coefficient, DmaxIt is obtained for insolation
Thermal factor maximum value, KeFor glass pane cooling load coefficient maximum value.
In some instances, load Q caused by the outside window glass transition is conducted heat8Calculation method it is as follows：
Q8=Kf*C(T4max+T3-T1),
Wherein, KfFor outside window glass heat transfer coefficient, C is the correction value of window frame, T4maxFor outside window glass refrigeration duty max calculation
Temperature.
The calculation method of building refrigeration duty according to an embodiment of the present invention receives in range in refrigeration duty error, enclosing
At the time of maximum hourly cooling load in the traditional hourly cooling load Y-factor method Y of moment substitution occurs in protection structure maximum refrigeration duty, thus accidentally
Differential can quickly and easily be calculated the refrigeration duty of building, considerably reduce the workload of designer by range,
The human cost of designer is reduced, and improves the accuracy of computational efficiency and calculated result.
To achieve the goals above, the embodiment of second aspect of the present invention proposes a kind of calculating system of building refrigeration duty
System, including：Determining module, for determining the current moment t out of buildings exterior-protected structure maximum refrigeration duty0；First computing module is used
In calculating separately in the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty
Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5；Second computing module, for according to the moment t0When it is corresponding
Personnel's heat dissipation refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4And ventilation
Refrigeration duty Q5Obtain the refrigeration duty Q of the building.
The computing system of building refrigeration duty according to an embodiment of the present invention receives in range in refrigeration duty error, enclosing
At the time of maximum hourly cooling load in the traditional hourly cooling load Y-factor method Y of moment substitution occurs in protection structure maximum refrigeration duty, thus accidentally
Differential can quickly and easily be calculated the refrigeration duty of building, considerably reduce the workload of designer by range,
The human cost of designer is reduced, and improves the accuracy of computational efficiency and calculated result.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the calculation method of building refrigeration duty according to an embodiment of the invention；
Fig. 2 is the structural block diagram of the computing system of building refrigeration duty according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The calculation method and system of building refrigeration duty according to an embodiment of the present invention are described below in conjunction with attached drawing.
Generally, the refrigeration duty that certain is built is divided into and disturbs refrigeration duty Q outsideoutRefrigeration duty Q is disturbed with interiorin。
Q=Qin+Qout
Qin=Q1+Q2+Q3
QOut=Q4+Q5
Wherein：Q1For personnel's heat dissipation refrigeration duty, Q2For equipment cooling refrigeration duty, Q3For lighting refrigeration duty, Q4To go along with sb. to guard him
Structural thermal refrigeration duty, Q5For refrigeration duty of divulging information.
Discovery is researched and analysed through applicant：Refrigeration duty is disturbed in building to change with time in air-conditioner operation time section
Less, that is, think that personnel radiate refrigeration duty, equipment cooling refrigeration duty, lighting refrigeration duty in operation of air conditioner in typical day
Between be all constant in section.But refrigeration duty (heat transfer across wall refrigeration duty) is disturbed outside by factors such as outdoor temperature, solar radiations
Influence.Based on this, in an embodiment of the present invention, as cold negative in tradition at the time of building being disturbed outside refrigeration duty maximum value
In lotus Y-factor method Y at the time of building total refrigeration duty maximum value, that is, (meter at the time of heat transfer across wall refrigeration duty maximum value
Calculate ventilation refrigeration duty when, outside air temperature by area draft chamber outside calculate temperature value, it is believed that divulge information refrigeration duty not with
The variation of outdoor conditions and change, it is believed that be unrelated with the time in section between at runtime).It is organized into following two formulas：
max QOut=max Q4+Q5
Max Q=max Qout+Qin。
The embodiment of the present invention is simplified on the basis of traditional hourly cooling load Y-factor method Y, not calculated load by
Duration simplifies step.It is obtained first with the determination method of relevant air-conditioned room building enclosure maximum refrigeration duty time of occurrence
Building enclosure maximum refrigeration duty at the time of the moment occur and substitute maximum hourly cooling load in traditional hourly cooling load Y-factor method Y, so
It is inscribed afterwards when building enclosure maximum refrigeration duty occurs and calculates building items refrigeration duty, finally added up and obtain the total cold of building
Load.
Based on this, Fig. 1 is the flow chart of the calculation method of building refrigeration duty according to an embodiment of the invention.Such as figure
Shown in 1, this approach includes the following steps：
Step S1：Determine buildings exterior-protected structure maximum refrigeration duty goes out current moment t0.Specifically, such as pass through air-conditioned room
Between building enclosure maximum refrigeration duty time of occurrence appearance of the determination method to calculate buildings exterior-protected structure maximum refrigeration duty when
Carve t0。
Step S2：It calculates separately in moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, light
Illuminate refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5.In other words, it calculates in t0The items at moment are cold
Load.
Wherein, in one embodiment of the invention, personnel's heat dissipation refrigeration duty Q1Calculation method it is as follows：
Wherein, n0For personnel amount, q1For whole heat dissipation capacities of the next personnel of different labor intensity, unit W,For
Cluster coefficient.
In one embodiment of the invention, equipment cooling refrigeration duty Q2Calculation method it is as follows：
Q2=q2* S,
Wherein, q2For the power density of equipment, unit W/m2, S is air-conditioning cooling area, unit m2。
In one embodiment of the invention, lighting refrigeration duty Q3Calculation method it is as follows：
Q3=q3* S,
Wherein, q3For lamp power density index, unit W/m2, S is air-conditioning cooling area, unit m2。
Heat transfer across wall refrigeration duty Q4Calculation method it is as follows：
Q4=Q6+Q7+Q8,
Wherein, Q6For the heat transfer refrigeration duty of exterior wall and roofing, Q7For the insolation refrigeration duty through windowpane, Q8For outer glass
Load caused by window transition is conducted heat.
Wherein, the heat transfer refrigeration duty Q of exterior wall and roofing6Calculation method it is as follows：
Q6=K0*(T0-T1),
Wherein, T0=Ka*(T2+T3), K0For the heat transfer coefficient of exterior wall and roofing, unit is W/ (m2DEG C), T0For exterior wall
With the calculation of cooling load temperature of roofing, T1For indoor calculating temperature, KaFor outer surface exothermic coefficient correction value, T2For exterior wall and room
The calculation of cooling load temperature in face by duration, unit is DEG C T3For place correction value, unit is DEG C.
Through the insolation refrigeration duty Q of windowpane7Calculation method it is as follows：
Q7=Kb*Kc*Kd*Dmax*Ke,
Wherein, KbFor effective area coefficient, KcFor indoor shading coefficient, KdFor glass pane shading coefficient, DmaxIt is obtained for insolation
Thermal factor maximum value, KeFor glass pane cooling load coefficient maximum value, unit is DEG C.
Load Q caused by outside window glass transition is conducted heat8Calculation method it is as follows：
Q8=Kf*C(T4max+T3-T1),
Wherein, KfFor outside window glass heat transfer coefficient, unit is W/ (m2DEG C), C is the correction value of the different situations such as window frame,
T4maxFor outside window glass refrigeration duty max calculation temperature.
In one embodiment of the invention, divulge information refrigeration duty Q5Calculation method it is as follows：
Q5=n0*M*ρ*(h0-h1)/3600* (1- η),
Wherein, M is fresh air volume needed for each personnel, unit m3/ h, ρ are atmospheric density, unit kg/m3, h0For outdoor
Air enthalpy, unit kJ/kg, h1For room air enthalpy, unit kJ/kg, η are heat recovery efficiency.
Step S3：According to moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting it is cold
Load Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of building.Specifically, Q=Q1+Q2+Q3
+Q4+Q5, t at the time of will being also calculated0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting
Refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5It adds up, the refrigeration duty Q of building can be obtained, i.e.,
Total refrigeration duty.
The calculation method of building refrigeration duty according to an embodiment of the present invention receives in range in refrigeration duty error, enclosing
At the time of maximum hourly cooling load in the traditional hourly cooling load Y-factor method Y of moment substitution occurs in protection structure maximum refrigeration duty, thus accidentally
Differential can quickly and easily be calculated the refrigeration duty of building, considerably reduce the workload of designer by range,
The human cost of designer is reduced, and improves the accuracy of computational efficiency and calculated result.
Further embodiment of the present invention also proposed a kind of computing system of building refrigeration duty.
Fig. 2 is the structural block diagram of the computing system of building refrigeration duty according to an embodiment of the invention.Such as Fig. 2 institute
Show, the computing system 100 of the building refrigeration duty includes：Determining module 110, the first computing module 120 and the second computing module
130。
Wherein it is determined that module 110 is used to determine the current moment t out of buildings exterior-protected structure maximum refrigeration duty0.Specifically,
Such as buildings exterior-protected structure maximum is calculated by the determination method of air-conditioned room building enclosure maximum refrigeration duty time of occurrence
Refrigeration duty goes out current moment t0。
First computing module 120 is for calculating separately in moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling it is cold
Load Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5.In other words, it calculates in t0When
Every refrigeration duty at quarter.
Wherein, in one embodiment of the invention, personnel's heat dissipation refrigeration duty Q1Calculation method it is as follows：
Wherein, n0For personnel amount, q1For whole heat dissipation capacities of the next personnel of different labor intensity, unit W,For
Cluster coefficient.
In one embodiment of the invention, equipment cooling refrigeration duty Q2Calculation method it is as follows：
Q2=q2* S,
Wherein, q2For the power density of equipment, unit W/m2, S is air-conditioning cooling area, unit m2。
In one embodiment of the invention, lighting refrigeration duty Q3Calculation method it is as follows：
Q3=q3* S,
Wherein, q3For lamp power density index, unit W/m2, S is air-conditioning cooling area, unit m2。
Heat transfer across wall refrigeration duty Q4Calculation method it is as follows：
Q4=Q6+Q7+Q8,
Wherein, Q6For the heat transfer refrigeration duty of exterior wall and roofing, Q7For the insolation refrigeration duty through windowpane, Q8For outer glass
Load caused by window transition is conducted heat.
Wherein, the heat transfer refrigeration duty Q of exterior wall and roofing6Calculation method it is as follows：
Q6=K0*(T0-T1),
Wherein, T0=Ka*(T2+T3), K0For the heat transfer coefficient of exterior wall and roofing, unit is W/ (m2DEG C), T0For exterior wall
With the calculation of cooling load temperature of roofing, T1For indoor calculating temperature, KaFor outer surface exothermic coefficient correction value, T2For exterior wall and room
The calculation of cooling load temperature in face by duration, unit is DEG C T3For place correction value, unit is DEG C.
Through the insolation refrigeration duty Q of windowpane7Calculation method it is as follows：
Q7=Kb*Kc*Kd*Dmax*Ke,
Wherein, KbFor effective area coefficient, KcFor indoor shading coefficient, KdFor glass pane shading coefficient, DmaxIt is obtained for insolation
Thermal factor maximum value, KeFor glass pane cooling load coefficient maximum value, unit is DEG C.
Load Q caused by outside window glass transition is conducted heat8Calculation method it is as follows：
Q8=Kf*C(T4max+T3-T1),
Wherein, KfFor outside window glass heat transfer coefficient, unit is W/ (m2DEG C), C is the correction value of the different situations such as window frame,
T4maxFor outside window glass refrigeration duty max calculation temperature.
In one embodiment of the invention, divulge information refrigeration duty Q5Calculation method it is as follows：
Q5=n0*M*ρ*(h0-h1)/3600* (1- η),
Wherein, M is fresh air volume needed for each personnel, unit m3/ h, ρ are atmospheric density, unit kg/m3, h0For outdoor
Air enthalpy, unit kJ/kg, h1For room air enthalpy, unit kJ/kg, η are heat recovery efficiency.
Second computing module 130 is used for according to moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty
Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of building.Specifically
Ground, Q=Q1+Q2+Q3+Q4+Q5, t at the time of will being also calculated0When corresponding personnel radiate refrigeration duty Q1, equipment cooling it is cold
Load Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5It adds up, can be obtained and build
Build the refrigeration duty Q of object, i.e. total refrigeration duty.
It should be noted that the specific implementation of the computing system of the building refrigeration duty of the embodiment of the present invention and this hair
The specific implementation of the calculation method of the building refrigeration duty of bright embodiment is similar, specifically refers to the description of method part,
In order to reduce redundancy, details are not described herein again.
The computing system of building refrigeration duty according to an embodiment of the present invention receives in range in refrigeration duty error, enclosing
At the time of maximum hourly cooling load in the traditional hourly cooling load Y-factor method Y of moment substitution occurs in protection structure maximum refrigeration duty, thus accidentally
Differential can quickly and easily be calculated the refrigeration duty of building, considerably reduce the workload of designer by range,
The human cost of designer is reduced, and improves the accuracy of computational efficiency and calculated result.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is by claim and its equivalent limits.
Claims (10)
1. a kind of calculation method of building refrigeration duty, which is characterized in that include the following steps：
Determine buildings exterior-protected structure maximum refrigeration duty goes out current moment t0；
It calculates separately in the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting it is cold negative
Lotus Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5；
According to the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2, lighting refrigeration duty Q3, enclose
Protection structure heat transfer refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of the building.
2. the calculation method of building refrigeration duty according to claim 1, which is characterized in that personnel's heat dissipation refrigeration duty
Q1Calculation method it is as follows：
Wherein, n0For personnel amount, q1For whole heat dissipation capacities of the next personnel of different labor intensity,For cluster coefficient.
3. the calculation method of building refrigeration duty according to claim 1, which is characterized in that the equipment cooling refrigeration duty
Q2Calculation method it is as follows：
Q2=q2* S,
Wherein, q2For the power density of equipment, S is air-conditioning cooling area.
4. the calculation method of building refrigeration duty according to claim 1, which is characterized in that the lighting refrigeration duty
Q3Calculation method it is as follows：
Q3=q3* S,
Wherein, q3For lamp power density index, S is air-conditioning cooling area.
5. the calculation method of building refrigeration duty according to claim 1, which is characterized in that the heat transfer across wall is cold
Load Q4Calculation method it is as follows：
Q4=Q6+Q7+Q8,
Wherein, Q6For the heat transfer refrigeration duty of exterior wall and roofing, Q7For the insolation refrigeration duty through windowpane, Q8For outside window glass wink
Become load caused by conducting heat.
6. the calculation method of building refrigeration duty according to claim 1, which is characterized in that the ventilation refrigeration duty Q5's
Calculation method is as follows：
Q5=n0*M*ρ*(h0-h1)/3600* (1- η),
Wherein, M is fresh air volume needed for each personnel, and ρ is atmospheric density, h0For outdoor air enthalpy, h1For room air enthalpy, η
For heat recovery efficiency.
7. the calculation method of building refrigeration duty according to claim 5, which is characterized in that the biography of the exterior wall and roofing
Hot refrigeration duty Q6Calculation method it is as follows：
Q6=K0*(T0-T1),
Wherein, T0=Ka*(T2+T3), K0For the heat transfer coefficient of exterior wall and roofing, T0For the calculation of cooling load temperature of exterior wall and roofing
Degree, T1For indoor calculating temperature, KaFor outer surface exothermic coefficient correction value, T2For the calculation of cooling load temperature of exterior wall and roofing
By duration, T3For place correction value.
8. the calculation method of building refrigeration duty according to claim 5, which is characterized in that the day through windowpane
Penetrate refrigeration duty Q7Calculation method it is as follows：
Q7=Kb*Kc*Kd*Dmax*Ke,
Wherein, KbFor effective area coefficient, KcFor indoor shading coefficient, KdFor glass pane shading coefficient, DmaxFor insolation get Re Yin
Number maximum value, KeFor glass pane cooling load coefficient maximum value.
9. the calculation method of building refrigeration duty according to claim 7, which is characterized in that the outside window glass transition passes
Thermally-induced load Q8Calculation method it is as follows：
Q8=Kf*C(T4max+T3-T1),
Wherein, KfFor outside window glass heat transfer coefficient, C is the correction value of window frame, T4maxFor outside window glass refrigeration duty max calculation temperature
Degree.
10. a kind of computing system of building refrigeration duty, which is characterized in that including：
Determining module, for determining the current moment t out of buildings exterior-protected structure maximum refrigeration duty0；
First computing module, for calculating separately in the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling it is cold negative
Lotus Q2, lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5；
Second computing module, for according to the moment t0When corresponding personnel radiate refrigeration duty Q1, equipment cooling refrigeration duty Q2、
Lighting refrigeration duty Q3, heat transfer across wall refrigeration duty Q4With ventilation refrigeration duty Q5Obtain the refrigeration duty Q of the building.
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