CN101251289A - Novel technique for tracing conditioned space dynamic thermal load - Google Patents
Novel technique for tracing conditioned space dynamic thermal load Download PDFInfo
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- CN101251289A CN101251289A CNA2008100232569A CN200810023256A CN101251289A CN 101251289 A CN101251289 A CN 101251289A CN A2008100232569 A CNA2008100232569 A CN A2008100232569A CN 200810023256 A CN200810023256 A CN 200810023256A CN 101251289 A CN101251289 A CN 101251289A
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- load
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- heat
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- tracing
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- 230000001143 conditioned effect Effects 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
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Abstract
The invention provides a novel technology for tracking a dynamic heat load for a conditioned space, which receives a load of a fan coil of the conditioned space through measurement, uses the load of the fan coil to calculate other loads, such as heat dissipating capacity of a human body, the heat dissipating capacity of a light fixture, the heat dissipating capacity of consumer equipment, heat of solar radiation, heat output through a space enclosing structure, fresh air heat output, and so on, calculates other parameter values according to the load values, the conditioned space and temperature-humidity measured values of adjacent spaces so as to establish a heat load expert database, forecasts heat load values under various operating conditions according to the heat load expert database, dynamically tracks the heat load of the conditioned space and a dynamic changing situation of the heat load, extensively compares the heat load expert database with an actual measured value and a calculated value to determine whether the operating condition of the conditioned space has an abnormal situation or not.
Description
Affiliated technical field
The present invention relates to a kind of novel technique for tracing conditioned space dynamic thermal load, refer in particular to and constantly to change and the novel technique for tracing conditioned space dynamic thermal load of dynamic change with the conditioned space operating mode.
Background technology
At present, known conditioned space thermic load is to calculate by computing formula or calculation chart in the design phase to get, and is mainly used in lectotype selection, is a kind of static heat load.And constantly change with the conditioned space operating mode, its thermic load value also is constantly to change, in order better to reach the purpose of conditioned space economical and effective operation, the user presses for the dynamic change situation of knowing the conditioned space thermic load.
Summary of the invention
Know the dynamic change situation of conditioned space thermic load in order to satisfy user's needs, the invention provides a kind of novel technique for tracing conditioned space dynamic thermal load, this novel technique for tracing conditioned space dynamic thermal load is owing to adopt calculating and measure the method that combines, utilize heat balance equation to find the solution, not only can know thermic load value at that time, thermic load value in the time of can also predicting next operating mode, and can judge the operating mode of operation at that time.
The technical solution adopted for the present invention to solve the technical problems is: by measuring the fan coil load of conditioned space, measuring method can adopt the enthalpy difference of turnover wind air to multiply by the mass flow of turnover wind air, can adopt into the temperature difference of backwater to multiply by discharge to water system and multiply by specific heat of water again, can adopt the gasification latent heat of cold-producing medium or latent heat of liquefaction to multiply by refrigerant flow to refrigerant system, heat balance equation during according to the various different actual operating mode of conditioned space, utilize the fan coil load to calculate other load, as the heat gain from occupant, the lighting heat dissipation capacity, the consumer heat dissipation capacity, the solar radiation heat, by the heat transfer across wall amount, new hearsay heat etc., temperature and humidity measurement value according to these load values and conditioned space and adjacent space, can calculate other parameter value, thereby can set up the thermic load expert database, can dope thermic load value under the various operating conditions according to the thermic load experts database, dynamically follow the tracks of conditioned space thermic load and thermic load dynamic change situation, carry out many-side relatively with actual measured value and calculated value and thermic load expert database, i.e. the operating condition at decidable conditioned space place.
The invention has the beneficial effects as follows, can realize that the conditioned space thermic load dynamically follows the tracks of, not only can know thermic load value at that time, the thermic load value in the time of can also predicting next operating mode, and can judge the operating mode of operation at that time.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is water system air-conditioner space system figure of the present invention.
1. sun in the accompanying drawing, 2. new wind, 3. conditioned space, 4. electric light, 5. outdoor or adjacent space, 6. fan coil, 7. consumer, 8. human body.
The specific embodiment
In the accompanying drawings, fan coil (6) load, the heat gain from occupant of human body (8), the lighting heat dissipation capacity of electric light (4), the consumer heat dissipation capacity of consumer (7), the solar radiation heat of the sun (1) are arranged, the new hearsay heat that passes through heat transfer across wall amount, new wind (2) of outdoor or adjacent space (5) in the conditioned space (3).
One, sets up the thermic load expert database
Heat balance equation can be expressed as follows generally speaking:
Q
Coil pipe=Q
Human body+ Q
Light fixture+ Q
Equipment+ Q
The sun+ Q
Go along with sb. to guard him+ Q
New wind
Q in the formula
Coil pipe---fan coil load (W),
Q
Human body---heat gain from occupant (W),
Q
Light fixture---lighting heat dissipation capacity (W),
Q
Equipment---consumer heat dissipation capacity (W),
Q
The sun---solar radiation heat (W),
Q
Go along with sb. to guard him---by heat transfer across wall amount (W),
Q
New wind---new hearsay heat (W),
1, calculates the fan coil load
Q
Coil pipe=C
pG
W(T
Advance-T
Return)
C in the formula
pBe specific heat of water,, check in by air-conditioning and Refrigeration Technique handbook according to advancing return water temperature.
G
WBe the mass flow of water, get according to the hydraulic equilibrium calculating or the flowmeter survey of air-conditioning system.
T
AdvanceInflow temperature for water gets according to measurement.
T
ReturnReturn water temperature for water gets according to measurement.
2, calculate other load
(1) calculates heat gain from occupant Q
Human body
Heat gain from occupant Q
Human bodyCan check in by air-conditioning and Refrigeration Technique handbook according to indoor temperature; Also can be under other to load geostationary situation by conditioned space, the fan coil when deducting nobody by the fan coil load that man-hour is arranged is loaded and is got, i.e. Q
Human body=Q
Someone coil pipe-Q
Unmanned coil pipe, and can revise the technical manual value of checking in.
(2) calculate lighting heat dissipation capacity Q
Light fixture
Lighting heat dissipation capacity Q
Light fixtureCan try to achieve according to the electrical power N of lighting, i.e. Q
Light fixture=N; Also can be under other load geostationary situation by conditioned space, the fan coil load when the fan coil load when turning on light deducts and turns off the light and getting, i.e. Q
Light fixture=Q
The coil pipe of turning on light-Q
The coil pipe of turning off the light, and can revise the value of trying to achieve.
(3) calculate consumer heat dissipation capacity Q
Equipment
Consumer heat dissipation capacity Q
EquipmentCan try to achieve according to the electrical power N and the efficiency eta of consumer, i.e. Q
Equipment=N η; Also can be under other to load geostationary situation by conditioned space, the fan coil when the fan coil load during by opening device deducts closing device is loaded and is got, i.e. Q
Equipment=Q
Offer coil pipe fully-Q
Pass equipment coil pipe, and can revise the value of trying to achieve.
(4) calculate new hearsay heat Q
New wind
Q
New wind=G
New wind(h
New wind-h
In)
H in the formula
New windSpecific enthalpy [kj/kg (doing)] for new wind can be checked in by air-conditioning and Refrigeration Technique handbook according to the new wind-warm syndrome humidity that records.
h
InSpecific enthalpy [kj/kg (doing)] for the room air of conditioned space can be checked in by air-conditioning and Refrigeration Technique handbook according to the indoor temperature and humidity that records.
G
New windFor resh air requirement [kg (doing)/s], can record according to the air quantity instrument, also can be according to G
New wind=Q
New wind/ (h
New wind-h
In) calculate, its value basic fixed is constant.
Also can be under other to load geostationary situation by conditioned space, the fan coil when the fan coil load when new wind is arranged deducts no new wind is loaded and is got, i.e. Q
New wind=Q
New wind coil pipe is arranged-Q
There is not new wind coil pipe, and calculate G with its value
New wind, the value of obtaining is revised.
(5) calculate by heat transfer across wall amount Q
Go along with sb. to guard him
By heat transfer across wall amount Q
Go along with sb. to guard himCan by conditioned space under no sun situation, get by following formula.
Q
Go along with sb. to guard him=Q
Coil pipe-Q
Human body-Q
Light fixture-Q
Equipment-Q
Go along with sb. to guard him-Q
New wind
Q in the formula
Coil pipe, Q
Human body, Q
Light fixture, Q
Equipment, Q
Go along with sb. to guard him, Q
New windAll under specific operation, got by above reckoning formula, its value can be used for asking K
jA
jBe worth, and the value of obtaining is revised, its value changes with the environmental change of adjacent space, as humiture, wind direction, wind speed variation etc.
Also can be by Q
Go along with sb. to guard him=∑ K
jA
j(T
j-T
In) and get.
K in the formula
jBe j face enclosure structure heat transfer coefficient [W/ (m
2* ℃)],
A
jBe outdoor or adjacent space j face heat transfer across wall area (m
2),
T
jFor outdoor or adjacent space j space air themperature (℃),
T
InFor the indoor air temperature of conditioned space (℃),
K
jA
jBe outdoor or adjacent space j face building enclosure unit different transfer of heat amount [W/ ℃], its value changes with the environmental change of adjacent space, and as humiture, wind direction, wind speed variation etc., it is worth according to K
jA
j=Q
J goes along with sb. to guard him/ (T
j-T
In) calculate Q
J goes along with sb. to guard himValue, gets by the j space air themperature that changes demand j face under other geostationary situation of loading at conditioned space, Q before changing
Go along with sb. to guard himValue deducts and changes back Q
Go along with sb. to guard him, i.e. Q
J goes along with sb. to guard him=Q
Go along with sb. to guard him before the change-Q
Go along with sb. to guard him after the change
(6) calculate solar radiation heat Q
The sun
Solar radiation heat Q
The sunCan by conditioned space under the situation of shining upon, get by following formula.
Q
The sun=Q
Coil pipe-Q
Human body-Q
Light fixture-Q
Equipment-Q
Go along with sb. to guard him-Q
New wind-Q
Go along with sb. to guard him
Q in the formula
Coil pipe, Q
Human body, Q
Light fixture, Q
Equipment, Q
Go along with sb. to guard him, Q
New wind, Q
Go along with sb. to guard himAll under specific operation, got by above reckoning formula, its value changes with the variation of the time and intensity that shines upon.
3, set up the thermic load expert database
According to above Q under various operating conditions
Coil pipe, Q
Human body, Q
Light fixture, Q
Equipment, Q
Go along with sb. to guard him, Q
New wind, Q
Go along with sb. to guard him, Q
The sunValue, and resh air requirement G
New windValue, the different transfer of heat amount K of j face building enclosure unit
jA
jBe worth and electrical power N value, just can set up the expert database of this conditioned space.
Two, utilize thermic load expert database prediction conditioned space thermic load and situation of change
According to the expert database of above foundation,, as humiture, wind direction, wind speed and shine upon situation etc., just can predict conditioned space thermic load and situation of change again in conjunction with in the future environmental change parameter.
Three, utilize the thermic load expert database to judge the operating condition at conditioned space place
Expert database according to above foundation, contrast various measured values, as advance return water temperature, indoor temperature and humidity, adjacent space humiture, wind direction, wind speed etc., just can judge the operating condition at conditioned space place, and can assess the ruuning situation of this operating condition, whether abnormal conditions appear.
Claims (3)
1. a novel technique for tracing conditioned space dynamic thermal load is characterized in that: by measuring the fan coil load of conditioned space, utilize the fan coil load to calculate other load and other parameter value, set up the thermic load expert database.
2. novel technique for tracing conditioned space dynamic thermal load according to claim 1 is characterized in that: by the thermic load expert database, dope thermic load value and dynamic change situation under the various operating conditions.
3. novel technique for tracing conditioned space dynamic thermal load according to claim 1 is characterized in that: by calorimetric load expert database, contrast various measured values and judge the operating condition at conditioned space place and abnormal conditions whether occur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100232569A CN101251289A (en) | 2008-04-07 | 2008-04-07 | Novel technique for tracing conditioned space dynamic thermal load |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100232569A CN101251289A (en) | 2008-04-07 | 2008-04-07 | Novel technique for tracing conditioned space dynamic thermal load |
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| Publication Number | Publication Date |
|---|---|
| CN101251289A true CN101251289A (en) | 2008-08-27 |
Family
ID=39954809
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|---|---|---|---|
| CNA2008100232569A Pending CN101251289A (en) | 2008-04-07 | 2008-04-07 | Novel technique for tracing conditioned space dynamic thermal load |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825327A (en) * | 2010-05-28 | 2010-09-08 | 哈尔滨工业大学 | Method for acquiring optimum air-conditioning system operation parameters based on weather forecast |
| CN102043907A (en) * | 2010-12-29 | 2011-05-04 | 上海大学 | Real-time cold load determination method of air-conditioner room |
| CN102549347A (en) * | 2009-10-21 | 2012-07-04 | 阿自倍尔株式会社 | Device and method for controlling air conditioner |
| CN103075783A (en) * | 2011-10-25 | 2013-05-01 | 株式会社日立制作所 | Air-side free cooling system and data center |
| CN104919484A (en) * | 2013-01-22 | 2015-09-16 | 株式会社日立制作所 | Energy management device and energy management system |
| CN109917706A (en) * | 2019-03-06 | 2019-06-21 | 重庆房地产职业学院 | A kind of Residential Buildings Energy effect monitoring system and method based on big data |
| CN110686725A (en) * | 2019-09-17 | 2020-01-14 | 南方风机股份有限公司 | Coil heating performance monitoring system and method and storage medium |
| CN112524777A (en) * | 2020-11-18 | 2021-03-19 | 青岛海尔空调器有限总公司 | Temperature adjusting time control method and device of air conditioner and air conditioner |
| CN113819596A (en) * | 2021-08-23 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
| CN114576797A (en) * | 2022-03-28 | 2022-06-03 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
-
2008
- 2008-04-07 CN CNA2008100232569A patent/CN101251289A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9200813B2 (en) | 2009-10-21 | 2015-12-01 | Azbil Corporation | Air-conditioning controlling device and method |
| CN102549347A (en) * | 2009-10-21 | 2012-07-04 | 阿自倍尔株式会社 | Device and method for controlling air conditioner |
| CN102549347B (en) * | 2009-10-21 | 2015-01-21 | 阿自倍尔株式会社 | Device and method for controlling air conditioner |
| CN101825327B (en) * | 2010-05-28 | 2012-03-07 | 哈尔滨工业大学 | Method for acquiring optimum air-conditioning system operation parameters based on weather forecast |
| CN101825327A (en) * | 2010-05-28 | 2010-09-08 | 哈尔滨工业大学 | Method for acquiring optimum air-conditioning system operation parameters based on weather forecast |
| CN102043907A (en) * | 2010-12-29 | 2011-05-04 | 上海大学 | Real-time cold load determination method of air-conditioner room |
| CN102043907B (en) * | 2010-12-29 | 2012-06-27 | 上海大学 | Real-time cold load determination method of air-conditioner room |
| CN103075783A (en) * | 2011-10-25 | 2013-05-01 | 株式会社日立制作所 | Air-side free cooling system and data center |
| CN103075783B (en) * | 2011-10-25 | 2015-04-22 | 株式会社日立制作所 | Air-side free cooling system and data center |
| CN104919484A (en) * | 2013-01-22 | 2015-09-16 | 株式会社日立制作所 | Energy management device and energy management system |
| CN109917706A (en) * | 2019-03-06 | 2019-06-21 | 重庆房地产职业学院 | A kind of Residential Buildings Energy effect monitoring system and method based on big data |
| CN110686725A (en) * | 2019-09-17 | 2020-01-14 | 南方风机股份有限公司 | Coil heating performance monitoring system and method and storage medium |
| CN110686725B (en) * | 2019-09-17 | 2021-05-04 | 南方风机股份有限公司 | Coil heating performance monitoring system and method and storage medium |
| CN112524777A (en) * | 2020-11-18 | 2021-03-19 | 青岛海尔空调器有限总公司 | Temperature adjusting time control method and device of air conditioner and air conditioner |
| CN113819596A (en) * | 2021-08-23 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
| CN114576797A (en) * | 2022-03-28 | 2022-06-03 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN114576797B (en) * | 2022-03-28 | 2023-04-11 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
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Open date: 20080827 |