Development of low grade waste heat thermoelectric power generator
This research aimed to develop a 50 watt thermoelectric power generator using low grade waste heat as a heat source,in order to recover and utilize the excess heat in cooling systems of industrial processes and high activity radioisotope sources. Electricity generation was based on the reverse opera...
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2010-07-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | http://www.rdoapp.psu.ac.th/html/sjst/journal/32-3/0125-3395-32-3-307-313.pdf |
| _version_ | 1817994264116723712 |
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| author | Suvit Punnachaiya Paiboon Kovitcharoenkul Decho Thong-aram |
| author_facet | Suvit Punnachaiya Paiboon Kovitcharoenkul Decho Thong-aram |
| author_sort | Suvit Punnachaiya |
| collection | DOAJ |
| description | This research aimed to develop a 50 watt thermoelectric power generator using low grade waste heat as a heat source,in order to recover and utilize the excess heat in cooling systems of industrial processes and high activity radioisotope sources. Electricity generation was based on the reverse operation of a thermoelectric cooling (TEC) device. The TEC devices weremodified and assembled into a set of thermal cell modules operating at a temperature less than 100°C. The developed powergenerator consisted of 4 modules, each generating 15 watts. Two cascade modules were connected in parallel. Each modulecomprised of 96 TEC devices, which were connected in series. The hot side of each module was mounted on an aluminumheat transfer pipe with dimensions 12.212.250 cm. Heat sinks were installed on the cold side with cooling fans to provideforced air cooling.To test electricity generation in the experiment, water steam was used as a heat source instead of low grade waste heat.The open-circuit direct current (DC) of 250 V and the short-circuit current of 1.2 A was achieved with the following operatingconditions: a hot side temperature of 96°C and a temperature difference between the hot and cold sides of 25°C. The DC poweroutput was inverted to an AC power source of 220 V with 50 Hz frequency, which can continuously supply more than 50 wattsof power to a resistive load as long as the heat source was applied to the system. The system achieved an electrical conversionefficiency of about 0.47 percent with the capital cost of 70 US$/W. |
| first_indexed | 2024-04-14T01:50:41Z |
| format | Article |
| id | doaj.art-5321b2e1850e49ce9b80c357225b5750 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-04-14T01:50:41Z |
| publishDate | 2010-07-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-5321b2e1850e49ce9b80c357225b57502022-12-22T02:19:22ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952010-07-01323307313Development of low grade waste heat thermoelectric power generatorSuvit PunnachaiyaPaiboon KovitcharoenkulDecho Thong-aramThis research aimed to develop a 50 watt thermoelectric power generator using low grade waste heat as a heat source,in order to recover and utilize the excess heat in cooling systems of industrial processes and high activity radioisotope sources. Electricity generation was based on the reverse operation of a thermoelectric cooling (TEC) device. The TEC devices weremodified and assembled into a set of thermal cell modules operating at a temperature less than 100°C. The developed powergenerator consisted of 4 modules, each generating 15 watts. Two cascade modules were connected in parallel. Each modulecomprised of 96 TEC devices, which were connected in series. The hot side of each module was mounted on an aluminumheat transfer pipe with dimensions 12.212.250 cm. Heat sinks were installed on the cold side with cooling fans to provideforced air cooling.To test electricity generation in the experiment, water steam was used as a heat source instead of low grade waste heat.The open-circuit direct current (DC) of 250 V and the short-circuit current of 1.2 A was achieved with the following operatingconditions: a hot side temperature of 96°C and a temperature difference between the hot and cold sides of 25°C. The DC poweroutput was inverted to an AC power source of 220 V with 50 Hz frequency, which can continuously supply more than 50 wattsof power to a resistive load as long as the heat source was applied to the system. The system achieved an electrical conversionefficiency of about 0.47 percent with the capital cost of 70 US$/W.http://www.rdoapp.psu.ac.th/html/sjst/journal/32-3/0125-3395-32-3-307-313.pdfthermoelectricityPeltier coolerwaste heatpower generatorthermal cellheat exchange |
| spellingShingle | Suvit Punnachaiya Paiboon Kovitcharoenkul Decho Thong-aram Development of low grade waste heat thermoelectric power generator Songklanakarin Journal of Science and Technology (SJST) thermoelectricity Peltier cooler waste heat power generator thermal cell heat exchange |
| title | Development of low grade waste heat thermoelectric power generator |
| title_full | Development of low grade waste heat thermoelectric power generator |
| title_fullStr | Development of low grade waste heat thermoelectric power generator |
| title_full_unstemmed | Development of low grade waste heat thermoelectric power generator |
| title_short | Development of low grade waste heat thermoelectric power generator |
| title_sort | development of low grade waste heat thermoelectric power generator |
| topic | thermoelectricity Peltier cooler waste heat power generator thermal cell heat exchange |
| url | http://www.rdoapp.psu.ac.th/html/sjst/journal/32-3/0125-3395-32-3-307-313.pdf |
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