CN104268388A - Method for metering equivalent energy consumption in heat energy exchange - Google Patents
Method for metering equivalent energy consumption in heat energy exchange Download PDFInfo
- Publication number
- CN104268388A CN104268388A CN201410482702.8A CN201410482702A CN104268388A CN 104268388 A CN104268388 A CN 104268388A CN 201410482702 A CN201410482702 A CN 201410482702A CN 104268388 A CN104268388 A CN 104268388A
- Authority
- CN
- China
- Prior art keywords
- air
- unit interval
- heat
- exchange
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a method for metering equivalent energy consumption in heat energy exchange. The method includes utilizing a measuring device to measure air speed of a fan and area of an air inlet according to an energy conservation principle to calculate the volume of air subjected to indoor and outdoor exchange in unit time; acquiring the corresponding quality of the air subjected to exchange in the unit time according to the volume of the air subjected to indoor and outdoor exchange in the unit time; utilizing a temperature measuring device to measure temperature values of the air inlet and the air outlet of the fan, acquiring the heat carried by heat exchange in the unit time according to the temperature values of the air inlet and the air outlet and the quality of the air subjected to exchange in the unit time; further acquiring power consumed by air conditioner refrigeration to achieve the same effect, namely the power consumed by the heat carried by the heat exchange of the fan in the unit time; converting the corresponding power into carbon dioxide emission load to obtain the actual reduced carbon dioxide emission in the unit time.
Description
Technical field
The present invention relates to metering field, be specifically related to the metering method of equivalence power consumption in a kind of thermal energy exchange.
Background technology
The method that the metering of current equivalence power consumption is conventional is relative method, and main two kinds of forms are lateral comparison and longitudinal comparison respectively.So-called lateral comparison refers in two confined spaces under condition is identical, adopt different constant temperature strategies, measure through a period of time, calculate the energy consumed by thermostatic equipment in two confined spaces respectively, thus obtain two kinds of catabiotic equivalence values of thermostatic equipment.This method weak point is under engineer applied condition, be difficult to find identical two confined spaces of inside and outside portion condition, due to the difference that external temperature and internal heat are discharged, cause the energy of thermostatic equipment actual consumption not have comparability, be difficult to obtain accurate equivalent numerical value with lateral comparison approach.Longitudinal comparison method refers in same confined space, adopts two kinds of different constant temperature strategies two different time periods, calculates the energy that two time periods consume by different thermostatic equipments respectively, thus acquisition two kinds of catabiotic equivalence values of thermostatic equipment.Obviously, it is identical equally to there is internal and external condition in these two time periods that cannot ensure to choose in this method, and the numerical value obtained also does not have the property be sure of.Also do not stand the metering method of the equivalence power consumption of deliberation, in practice convenient application at present in theory.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses the metering method of equivalence power consumption in a kind of thermal energy exchange, the method is relatively airtight and constantly have in the interior space of heat generation, as communications equipment room, transformer station etc., because outside lower temperature air enters inner space under the effect of blower fan, force in the process outside hot inside air discharge chamber, dispersed heat is converted into the energy values that consumes of effect same because air conditioner refrigerating obtains, and energy mainly refers to electric energy here.Thus the numerical value reducing CO2 emissions in certain period can be calculated further.
For achieving the above object, concrete scheme of the present invention is as follows:
A metering method for equivalence power consumption in thermal energy exchange, comprises the following steps:
Step one: be provided with blower fan in the relatively airtight interior space, outside lower temperature air enters inner space under the effect of blower fan, forces outside hot inside air discharge chamber;
Step 2: according to conservation of energy principle, utilizes measurement mechanism to measure blower fan wind speed and air-admitting surface, calculates the volume of air that unit interval indoor and outdoor exchanges;
Step 3: the volume of air that the unit interval indoor and outdoor obtained according to atmospheric density and step 2 exchanges obtains the air quality that the corresponding unit interval exchanges;
Step 4: utilize the temperature value that temperature measuring equipment measurement air inlet and air outlet go out, the air quality that the unit interval obtained according to air inlet and the temperature value of air outlet, the specific heat capacity of air and step 3 exchanges, obtains unit interval blower fan and carries out the heat that heat interchange takes away;
Step 5: according to the efficiency ratio of air-conditioning, obtains further because air conditioner refrigerating produces effect same, and namely in step 4, unit interval blower fan carries out the heat that heat interchange is taken away and the electric energy consumed;
Step 6: electric energy corresponding for step 5 is amounted to into CO2 emissions and namely obtain unit interval actual minimizing CO2 emissions.
Computing formula concrete in described step 2 is:
V＝S*v
Wherein, the volume of air that V unit interval indoor and outdoor exchanges, S is the area of air outlet, and v is the wind speed of blower fan mouth.
Formula corresponding in described step 3 is:
m＝ρV
Wherein, m is the air quality exchanged the unit interval, and ρ is atmospheric density, the volume of air that V unit interval indoor and outdoor exchanges.
Formula corresponding in described step 4 is:
Q＝Cm(T
1-T
2)
Wherein, Q is the heat taken away the unit interval, and C is the specific heat capacity of air, and m is the air quality exchanged the unit interval, T
1air outlet temperature, T
2it is intake air temperature.
Calculated the numerical value obtaining air condition system supplier saving of time electric energy E (kw.h) because of ventilation by following formula in described step 5:
Wherein, d is efficiency ratio, and Q is the heat taken away the unit interval;
Because blower fan work consumes extra energy, unit interval actual saves energy should deduct the electric energy that blower fan consumes.If the power of blower fan is P (kw), then actual saves energy Et is the unit interval
Et＝E-P/(3.6*103)(kw.h/s)。
In described step 6, amount to into CO2 emissions, calculate by the corresponding 0.997kg carbon dioxide of the energy of 0.997kg/kw.h and 1kw.h, unit interval actual minimizing CO2 emissions 0.997*E
t(kg/s).
Beneficial effect of the present invention:
Under the application background of energy-saving and emission-reduction, when a kind of new technology of employing can reach energy-conservation object in theory, and be limited to application conditions cannot Measurement accuracy actual energy-conservation numerical value time, the accreditation of the unit that just possibly cannot be applied, thus limit applying of this new technology.The present invention is intended to design a kind of equivalent energy consumption measure equipment, accurately measures the electric energy saved due to the application of new technology, makes application units and technical innovation exploiting entity all approve measurement numerical value, for the benefits distribution produced because saving electric energy provides foundation.Because this out and out interests, greatly can excite application units and technical innovation exploiting entity applying new power-saving technology, there is good social value and economic worth.
Accompanying drawing explanation
Fig. 1 principle schematic of the present invention;
Fig. 2 is of the present invention realizes schematic diagram.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in Figure 1, thermal energy exchange gauge is used for measuring relatively airtight and constantly have in the interior space of heat generation, because outside lower temperature air enters inner space under the effect of blower fan, force in the process outside hot inside air discharge chamber, dispersed heat is converted into the electric energy numerical value that consumes of effect same because air conditioner refrigerating obtains, and then obtains the numerical value reducing CO2 emissions in certain period.
Principle of work:
According to conservation of energy principle, by measuring blower fan wind speed and air-admitting surface, calculated the volume of air of unit interval indoor and outdoor exchange by following formula:
V＝S*v
The volume of air of V unit interval indoor and outdoor exchange here, S is the area of air outlet, and v is the wind speed of blower fan mouth.
Air quality is calculated by following formula according to atmospheric density:
m＝ρV
Here m is the air quality exchanged the unit interval, and ρ is atmospheric density, the volume of air that V unit interval indoor and outdoor exchanges.
Measure the temperature value that air inlet and air outlet go out again respectively, obtain according to following formula the heat that the unit interval taken away by air:
Q＝Cm(T
1-T
2)
Here Q is the heat taken away the unit interval, and C is the specific heat capacity of air, and m is the air quality exchanged the unit interval, T
1air outlet temperature, T
2it is intake air temperature.
The specific heat capacity of air and density all get value during standard atmospheric pressure 20 degrees Celsius under normal humidity, i.e. C=1.01kJ/ (kg DEG C), the density p=1.205kg/m of air
3.
Obtaining the unit interval due to ventilation equipment, make indoor temperature decline and scatter and disappear total heat after, according to the efficiency ratio of air-conditioning, the electric energy consumed because air conditioner refrigerating produces effect same can be obtained further, if air-conditioning calculates by 2 grades of energy efficiencies, i.e. efficiency ratio d=3.2, is calculated the numerical value obtaining air condition system supplier saving of time electric energy E (kw.h) because of ventilation by following formula:
If power of fan is P (kw), then unit interval actual saves energy is E
t=E-P/ (3.6*10
3) (kw.h/s)
Amount to into CO2 emissions, calculate by 0.997kg/kw.h, unit interval actual minimizing CO2 emissions 0.997*E
t(kg/s).
Illustrate: air outlet temperature T
1=35 DEG C, intake air temperature T
2=20 DEG C, air inlet area S=0.04m
2, blower fan wind speed v=4m/s, exhaust equipment power P=0.1kw;
Then: the volume of air that unit interval indoor and outdoor exchanges: V=S*v=0.04*4=0.16 (m
3/ s);
The air quality that unit interval exchanges:
m＝ρV＝1.205*0.16＝0.1928(kg/s)；
Heat Q=Cm (the T that unit interval is taken away
1-T
2)=1.01*0.1928* (35-20)=2.92 (kJ/s)
The numerical value of air condition system supplier saving of time electric energy E (kw.h) is obtained because of ventilation:
E＝Q/(d*3.6*10
3)＝2.92/(3.2*3.6*10
3)＝2.54*10
-4(kw.h/s)
Unit interval actual saves energy: E
t=E-P/ (3.6*10
3)=2.54*10
-4-0.1/ (3.6*10
3)=2.26*10
-4(kw.h/s), namely saves energy per second is 2.26*10
-4kw.h.Annual by use calculating in 8 months, annual saves energy is 2.26*10
-4* 3600*24*245=4784 (kw.h), annual actual minimizing CO2 emissions: 0.997*4784=4769kg.
As shown in Figure 2, the temperature value gone out by temperature sensor air inlet and air outlet, air velocity transducer measures blower fan wind speed, humidity sensor is positioned at air inlet, be used for measuring outside air humidity, this parameter, for calculating current air ratio thermal capacitance, is shown in formula Q=Cm (T
1-T
2)), temperature value, blower fan wind speed and humidity value are sent to control circuit, control circuit is connected with clock circuit, the output of control circuit is connected with liquid crystal display, and control circuit is also connected with other communication facilitiess by communication interface, and control circuit is also connected with acousto-optic warning unit, when due to air inlet filter net jam, when intake does not reach setting, acousto-optic warning unit work starts onsite alarming, transmits failure message to host computer by communication interface simultaneously.
The application utilizes conservation of energy principle, measures and exchanges dispersed heat because blower fan work forms air, changes into the electric energy that air conditioner refrigerating obtains same effect needs.
Claims (6)
1. a metering method for equivalence power consumption in thermal energy exchange, is characterized in that, comprise the following steps:
Step one: be provided with blower fan in the relatively airtight interior space, outside lower temperature air enters inner space under the effect of blower fan, forces outside hot inside air discharge chamber;
Step 2: according to conservation of energy principle, utilizes measurement mechanism to measure blower fan wind speed and air-admitting surface, calculates the volume of air that unit interval indoor and outdoor exchanges;
Step 3: the volume of air that the unit interval indoor and outdoor obtained according to atmospheric density and step 2 exchanges obtains the air quality that the corresponding unit interval exchanges;
Step 4: the temperature value utilizing temperature measuring equipment to measure air inlet and air outlet to go out, the air matter that the unit interval that the temperature value gone out according to air inlet and air outlet and step 3 obtain exchanges obtains unit interval blower fan and carries out the heat that heat interchange takes away;
Step 5: according to the efficiency ratio of air-conditioning, obtains further and carries out the heat that heat interchange is taken away and the electric energy consumed because air conditioner refrigerating produces unit interval blower fan in effect same and step 4;
Step 6: electric energy corresponding for step 5 is amounted to into CO2 emissions and namely obtain unit interval actual minimizing CO2 emissions.
2. the metering method of equivalence power consumption in a kind of thermal energy exchange as claimed in claim 1, it is characterized in that, computing formula concrete in described step 2 is:
V＝S*v
Wherein, the volume of air that V unit interval indoor and outdoor exchanges, S is the area of air outlet, and v is the wind speed of blower fan mouth.
3. the metering method of equivalence power consumption in a kind of thermal energy exchange as claimed in claim 1, is characterized in that, formula corresponding in described step 3 is:
m＝ρV
Wherein, m is the air quality exchanged the unit interval, and ρ is atmospheric density, the volume of air that V unit interval indoor and outdoor exchanges.
4. the metering method of equivalence power consumption in a kind of thermal energy exchange as claimed in claim 1, is characterized in that, formula corresponding in described step 4 is:
Q＝Cm(T
1-T
2)
Wherein, Q is the heat taken away the unit interval, and C is the specific heat capacity of air, and m is the air quality exchanged the unit interval, T
1air outlet temperature, T
2it is intake air temperature.
5. the metering method of equivalence power consumption in a kind of thermal energy exchange as claimed in claim 1, is characterized in that, is calculated the numerical value obtaining air condition system supplier saving of time electric energy E (kw.h) because of ventilation in described step 5 by following formula:
Wherein, d is efficiency ratio, and Q is the heat taken away the unit interval;
If power of fan is P (kw), then unit interval actual saves energy E
tfor E
t=E-P/ (3.6*10
3) (kw.h/s).
6. the metering method of equivalence power consumption in a kind of thermal energy exchange as claimed in claim 1, it is characterized in that, in described step 6, amount to into CO2 emissions, calculate by the corresponding 0.997kg carbon dioxide of the energy of 0.997kg/kw.h and 1kw.h, unit interval actual minimizing CO2 emissions 0.997*E
t(kg/s).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482702.8A CN104268388B (en) | 2014-09-19 | 2014-09-19 | The metering method of equivalent energy consumption in a kind of thermal energy exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482702.8A CN104268388B (en) | 2014-09-19 | 2014-09-19 | The metering method of equivalent energy consumption in a kind of thermal energy exchange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104268388A true CN104268388A (en) | 2015-01-07 |
| CN104268388B CN104268388B (en) | 2018-07-24 |
Family
ID=52159909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410482702.8A Expired - Fee Related CN104268388B (en) | 2014-09-19 | 2014-09-19 | The metering method of equivalent energy consumption in a kind of thermal energy exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104268388B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224675A (en) * | 2017-12-29 | 2018-06-29 | 北京世纪互联宽带数据中心有限公司 | A kind of method and apparatus for reducing power consumption |
| CN110232781A (en) * | 2018-03-06 | 2019-09-13 | 依必安派特穆尔芬根有限两合公司 | Air quantity detecting device |
| CN111289908A (en) * | 2020-03-31 | 2020-06-16 | 深圳埃瑞斯瓦特新能源有限公司 | Method for measuring and calculating heating power of lithium battery |
| CN113916292A (en) * | 2021-10-09 | 2022-01-11 | 中国科学技术大学 | Full-size house fire behavior measurement system and test method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153332A (en) * | 2004-11-26 | 2006-06-15 | Matsushita Electric Ind Co Ltd | Outdoor unit for air conditioner |
| CN1825010A (en) * | 2006-01-17 | 2006-08-30 | 王妍 | Heat exchange system for saving energy and heat exchange method thereof |
| CN101509684A (en) * | 2009-03-10 | 2009-08-19 | 尹宏文 | Communication equipment room energy-conserving system |
| CN201327143Y (en) * | 2008-10-08 | 2009-10-14 | 蒲忠义 | Air exchange system for unmanned communication room |
| WO2012162938A1 (en) * | 2011-05-30 | 2012-12-06 | 通力盛达能源设备（北京）有限公司 | Air heat exchange device and manufacturing method thereof, and integrative air heat exchange air-conditioning device |
| CN102878649A (en) * | 2012-09-11 | 2013-01-16 | 毛振刚 | Intelligent ventilated energy-saving system for base station |
| CN103158485A (en) * | 2011-12-12 | 2013-06-19 | 北京汽车股份有限公司 | Automobile air conditioning system and control method thereof |
-
2014
- 2014-09-19 CN CN201410482702.8A patent/CN104268388B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153332A (en) * | 2004-11-26 | 2006-06-15 | Matsushita Electric Ind Co Ltd | Outdoor unit for air conditioner |
| CN1825010A (en) * | 2006-01-17 | 2006-08-30 | 王妍 | Heat exchange system for saving energy and heat exchange method thereof |
| CN201327143Y (en) * | 2008-10-08 | 2009-10-14 | 蒲忠义 | Air exchange system for unmanned communication room |
| CN101509684A (en) * | 2009-03-10 | 2009-08-19 | 尹宏文 | Communication equipment room energy-conserving system |
| WO2012162938A1 (en) * | 2011-05-30 | 2012-12-06 | 通力盛达能源设备（北京）有限公司 | Air heat exchange device and manufacturing method thereof, and integrative air heat exchange air-conditioning device |
| CN103158485A (en) * | 2011-12-12 | 2013-06-19 | 北京汽车股份有限公司 | Automobile air conditioning system and control method thereof |
| CN102878649A (en) * | 2012-09-11 | 2013-01-16 | 毛振刚 | Intelligent ventilated energy-saving system for base station |
Non-Patent Citations (2)
| Title |
|---|
| 国务院机关事务管理局组织编撰: "《日常节能手册》", 30 June 2009 * |
| 王婷婷: "《新风节能***在通信机房中的应用分析》", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224675A (en) * | 2017-12-29 | 2018-06-29 | 北京世纪互联宽带数据中心有限公司 | A kind of method and apparatus for reducing power consumption |
| CN108224675B (en) * | 2017-12-29 | 2020-04-10 | 北京世纪互联宽带数据中心有限公司 | Method and device for reducing power consumption |
| CN110232781A (en) * | 2018-03-06 | 2019-09-13 | 依必安派特穆尔芬根有限两合公司 | Air quantity detecting device |
| US11920968B2 (en) | 2018-03-06 | 2024-03-05 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Device and method for air quantity recording |
| CN111289908A (en) * | 2020-03-31 | 2020-06-16 | 深圳埃瑞斯瓦特新能源有限公司 | Method for measuring and calculating heating power of lithium battery |
| CN113916292A (en) * | 2021-10-09 | 2022-01-11 | 中国科学技术大学 | Full-size house fire behavior measurement system and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104268388B (en) | 2018-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104268388A (en) | Method for metering equivalent energy consumption in heat energy exchange | |
| CN107314498A (en) | The efficiency on-line monitoring method and device of a kind of central air conditioner system | |
| CN102721720B (en) | Device and method for testing thermal performance of phase-change energy-storage composite board, and method for evaluating energy saving of same | |
| CN109754195B (en) | Annual performance detection method of ground source heat pump system | |
| CN102095927B (en) | Energy-saving metering method for communication base station | |
| CN108120939A (en) | A kind of active card battery power amount calculation method | |
| CN104089379A (en) | Method for assessing efficiency of underground powerhouse ventilating and air conditioning system | |
| CN108645524A (en) | A kind of indirect air cooling system temperature field on-Line Monitor Device and method | |
| CN102539108A (en) | Energy-saving wind tunnel for enthalpy potential method experiment device | |
| CN204188239U (en) | A kind of gas meter, flow meter temperature adaptability test device with energy-conservation usefulness | |
| CN102538886B (en) | Extra-pipe binding type thermal pulse gas flowmeter capable of resisting ambient temperature disturbances | |
| CN203299154U (en) | Variable-frequency heat pump type rock-soil thermophysical property tester | |
| CN204008028U (en) | A kind of Portable industrial boiler air heat exchanger air leakage coefficient measuring device | |
| CN213748560U (en) | Testing device for air source heat pump cooling and heating unit | |
| CN204461651U (en) | A kind of portable air-conditioning refrigeration (heat) amount detector | |
| CN204086186U (en) | A kind of hydrated cementitious heat test thermal discharge checkout equipment | |
| CN210861901U (en) | Variable working condition energy efficiency test system of cold water supply system | |
| CN203024906U (en) | Buried heat supply pipeline radiation loss tester under non-steady-state condition | |
| CN206496666U (en) | Water circulation cooling energy-saving apparatus | |
| CN110671869A (en) | Variable working condition energy efficiency testing system of cold water supply system and application thereof | |
| CN206546010U (en) | Energy-saving type air conditioner | |
| CN201561861U (en) | Portable type central air-conditioning load and efficiency accurate measurement device | |
| CN104180480A (en) | Central air conditioner system air processing unit real-time energy consumption detection method | |
| CN103293185B (en) | Variable frequency heat pump type rock-soil thermal property tester | |
| CN202511818U (en) | Cluster type buried tube heat exchanger multifunctional detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20190919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |