CN1782680A - Detecting method for thermoelectric conversion efficiency of thermoelectric element device - Google Patents
Detecting method for thermoelectric conversion efficiency of thermoelectric element device Download PDFInfo
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- CN1782680A CN1782680A CN200410093832.9A CN200410093832A CN1782680A CN 1782680 A CN1782680 A CN 1782680A CN 200410093832 A CN200410093832 A CN 200410093832A CN 1782680 A CN1782680 A CN 1782680A
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Abstract
The detecting method of thermoelectric conversion efficiency of thermoelectric element or device includes the following steps: 1. measuring the electric power P of thermoelectric element or device with a common power meter; 2. measuring thermal potential E with a thermoelectric power meter set in the cold side of the thermoelectric element or device and calculating the thermal power Q by means of the formula Q=AE+B, where A and B are determined through calibrating the thermoelectric power meter; and 3. calculating the thermoelectric conversion efficiency Eta of thermoelectric element or device by means of the formula Eta=P/Q+P. Owing to measuring the thermal power the cold side of the thermoelectric element or device outputs, rather than the input thermal power, the present invention avoids the heat loss of side convection of the thermoelectric element or device and has raised measurement precision of thermoelectric conversion efficiency.
Description
Technical field
The invention belongs to the thermoelectric technical field, particularly relate to a kind of method of testing of thermoelectric conversion efficiency of thermoelectric element device.
Background technology
The single even conversion efficiency of thermoelectric of present disclosed thermoelement or thermoelectric is defined as the thermal power of the single accidental electric power that goes out of under the hot-face temperature of regulation and huyashi-chuuka (cold chinese-style noodles) temperature thermoelement or thermoelectric divided by the hot side input.Therefore, the single even conversion efficiency of thermoelectric of thermoelement or thermoelectric calculates by the thermal power of measuring the single even hot side input of thermoelement or thermoelectric and the electric power of sending usually.In general, the mensuration of electric power ratio is easier to, and precision is also high.And the mensuration of thermal power, because thermal loss such as the radiation of flow through thermoelement or single even heat, convection current be difficult to measure, and the measuring accuracy of conversion efficiency of thermoelectric are difficult to guarantee.
Summary of the invention
The present invention provides the method for testing that improves a kind of thermoelectric conversion efficiency of thermoelectric element device of conversion efficiency of thermoelectric measuring accuracy for solving problems of the prior art.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in comprising following process:
1. measure the electrical power P of thermoelectric components and parts with the common power table;
2. place the huyashi-chuuka (cold chinese-style noodles) of thermoelectric components and parts with thermoelectric heat power meter, measure thermoelectrical potential ε, calculate thermal power Q:Q=A ε+B by following formula, described A and B are determined by the thermoelectric heat power meter calibration process;
3. calculate the conversion efficiency of thermoelectric η of thermoelectric components and parts by following formula:
The present invention can also adopt following technical measures to realize:
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that the hot and cold face of described thermoelectric components and parts is respectively equipped with temperature thermocouple.
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that the above and below of thermoelectric heat power meter is respectively equipped with temperature thermocouple.
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that described thermoelectric components and parts insert an electronic load.
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that described thermoelectric components and parts are thermoelement.
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that described thermoelectric components and parts are the single idol of thermoelectric.
The method of testing of thermoelectric conversion efficiency of thermoelectric element device is characterized in that the thermoelectric components and parts are the thermoelectric assembly.
Advantage and good effect that the present invention has are: owing to adopted the thermal power of measuring the output of thermoelectric components and parts huyashi-chuuka (cold chinese-style noodles), avoided measuring the input thermal power, avoid the side convection current of thermoelectric components and parts, radiation heat loss's protection question, improved the measuring accuracy of conversion efficiency of thermoelectric.
Description of drawings
Fig. 1 is the method for testing synoptic diagram of thermoelectric conversion efficiency of thermoelectric element device of the present invention;
Fig. 2 is the power-thermoelectrical potential calibration map of thermoelectric heat power meter in the method for testing of thermoelectric conversion efficiency of thermoelectric element device of the present invention.
Label among the figure is respectively: 1 is electric heater, and 2 is the single idol of the temperature difference, and 3 is thermoelectric heat power meter, and 4 is heat channel, and 5 is test board, and 6 is insulation material.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, enumerate following examples now, and conjunction with figs. is described in detail as follows:
Embodiment 1:
Electric heater 1, the single idol 2 of thermoelectric, thermoelectric heat power meter 3, heat channel 4 are clamped on the test board 6 from top to bottom successively, place one deck insulation material 6 above the electric heater 1.Single even hot side of thermoelectric and huyashi-chuuka (cold chinese-style noodles) are installed temperature thermocouple respectively, in the thermoelectric heat power meter top and bottom temperature thermocouple is installed respectively, the single idol of thermoelectric is installed electrical output lead, thermoelectric heat power meter is installed electrical output lead, and each temperature thermocouple and electrical output lead link with temperature measuring instrument and voltage measuring instrument respectively.
The single idol of thermoelectric inserts an ohmic load.Electric heater heats up, and regulates the heat channel temperature simultaneously, makes the hot side of the single idol of thermoelectric and huyashi-chuuka (cold chinese-style noodles) temperature reach also constant temperature T h and Tc in regulation, measures the single even output power P of thermoelectric this moment, measures the output voltage ε of the single idol of thermoelectric with electric thermal power.The hot-face temperature and the huyashi-chuuka (cold chinese-style noodles) temperature of record thermoelectric heat power meter.
Power-thermoelectrical potential the curve of the thermoelectric heat power meter that contrast is demarcated in advance can be determined the thermal power Q of this state through the thermal power meter.Also can this formula of thermoelectrical potential ε substitution of measuring just can be calculated the thermal power Q of process thermal power meter by in advance power-thermoelectrical potential the curve fitting of demarcating power-thermoelectrical potential formula.Accompanying drawing 2 is the power-thermoelectrical potential calibration curve of a thermoelectric heat power meter.Power-thermoelectrical potential relational expression is: Q=0.01315 ε+0.2710, calculate the single even conversion efficiency of thermoelectric of thermoelectric by following formula at last:
Claims (7)
1. the method for testing of a thermoelectric conversion efficiency of thermoelectric element device is characterized in that comprising following process:
1. measure the electrical power P of thermoelectric components and parts with the common power table;
2. place the huyashi-chuuka (cold chinese-style noodles) of thermoelectric components and parts with thermoelectric heat power meter, measure thermoelectrical potential ε, calculate thermal power Q:Q=A ε+B by following formula, described A and B are determined by the thermoelectric heat power meter calibration process;
3. calculate the conversion efficiency of thermoelectric η of thermoelectric components and parts by following formula:
2. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1, it is characterized in that: the hot and cold face of described thermoelectric components and parts is respectively equipped with temperature thermocouple.
3. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1, it is characterized in that: the above and below of described thermoelectric heat power meter is respectively equipped with temperature thermocouple.
4. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1 is characterized in that: electronic load of described thermoelectric components and parts access.
5. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1, it is characterized in that: described thermoelectric components and parts are thermoelement.
6. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1 is characterized in that: described thermoelectric components and parts are the single idol of thermoelectric.
7. the method for testing of thermoelectric conversion efficiency of thermoelectric element device according to claim 1, it is characterized in that: described thermoelectric components and parts are the thermoelectric assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100938329A CN100420927C (en) | 2004-12-03 | 2004-12-03 | Detecting method for thermoelectric conversion efficiency of thermoelectric element device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100938329A CN100420927C (en) | 2004-12-03 | 2004-12-03 | Detecting method for thermoelectric conversion efficiency of thermoelectric element device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1782680A true CN1782680A (en) | 2006-06-07 |
| CN100420927C CN100420927C (en) | 2008-09-24 |
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| CNB2004100938329A Expired - Fee Related CN100420927C (en) | 2004-12-03 | 2004-12-03 | Detecting method for thermoelectric conversion efficiency of thermoelectric element device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540099A (en) * | 2012-02-06 | 2012-07-04 | 天津大学 | System and method for testing thermoelectric conversion efficiency of miniature temperature-difference battery |
| CN104007139A (en) * | 2014-06-10 | 2014-08-27 | 中国华能集团清洁能源技术研究院有限公司 | Testing system and method of thermoelectric module |
| CN105807171A (en) * | 2016-05-26 | 2016-07-27 | 安徽工业大学 | Simulation detecting system and method of heat to electricity conversion efficiency of industrial waste heat |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3585565B2 (en) * | 1995-03-09 | 2004-11-04 | 日新製鋼株式会社 | Thermoelectric element using porous metal |
| CN1223496A (en) * | 1998-01-12 | 1999-07-21 | 朱长青 | Temp. difference thermoelectric couple unit group electricity generating method and temp. difference thermoelectric couple converter |
| CN1289039A (en) * | 2000-10-20 | 2001-03-28 | 西北大学 | Temperature difference sensor |
| JP2004193209A (en) * | 2002-12-09 | 2004-07-08 | Ube Ind Ltd | Thermoelectric conversion module and method of manufacturing the same |
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2004
- 2004-12-03 CN CNB2004100938329A patent/CN100420927C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540099A (en) * | 2012-02-06 | 2012-07-04 | 天津大学 | System and method for testing thermoelectric conversion efficiency of miniature temperature-difference battery |
| CN102540099B (en) * | 2012-02-06 | 2014-05-07 | 天津大学 | System and method for testing thermoelectric conversion efficiency of miniature temperature-difference battery |
| CN104007139A (en) * | 2014-06-10 | 2014-08-27 | 中国华能集团清洁能源技术研究院有限公司 | Testing system and method of thermoelectric module |
| CN105807171A (en) * | 2016-05-26 | 2016-07-27 | 安徽工业大学 | Simulation detecting system and method of heat to electricity conversion efficiency of industrial waste heat |
| CN105807171B (en) * | 2016-05-26 | 2019-05-07 | 安徽工业大学 | A kind of simulation detection system and detection method of industrial exhaust heat thermoelectric conversion efficiency |
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| Publication number | Publication date |
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| CN100420927C (en) | 2008-09-24 |
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