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Improved thermoelectric generator performance using high temperature thermoelectric materials

Thermoelectric generator (TEG) has received more and more attention in its application in the harvesting of waste thermal energy in automotive engines. Even though the commercial Bismuth Telluride thermoelectric material only have 5% efficiency and 250°C hot side temperature limit, it is possible to...

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Main Authors: Zhijia Yang, Jesus PradoGonjal, Matthew Phillips, Song Lan, Anthony Powell, Paz Vaqueiro, Min Gao, Richard Stobart, Rui Chen
Format: Default Conference proceeding
Published: 2017
Subjects:
Online Access:https://hdl.handle.net/2134/24128
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author Zhijia Yang
Jesus PradoGonjal
Matthew Phillips
Song Lan
Anthony Powell
Paz Vaqueiro
Min Gao
Richard Stobart
Rui Chen
author_facet Zhijia Yang
Jesus PradoGonjal
Matthew Phillips
Song Lan
Anthony Powell
Paz Vaqueiro
Min Gao
Richard Stobart
Rui Chen
author_sort Zhijia Yang (1256040)
collection Figshare
description Thermoelectric generator (TEG) has received more and more attention in its application in the harvesting of waste thermal energy in automotive engines. Even though the commercial Bismuth Telluride thermoelectric material only have 5% efficiency and 250°C hot side temperature limit, it is possible to generate peak 1kW electrical energy from a heavy-duty engine. If being equipped with 500W TEG, a passenger car has potential to save more than 2% fuel consumption and hence CO2 emission reduction. TEG has advantages of compact and motionless parts over other thermal harvest technologies such as Organic Rankine Cycle (ORC) and Turbo-Compound (TC). Intense research works are being carried on improving the thermal efficiency of the thermoelectric materials and increasing the hot side temperature limit. Future thermoelectric modules are expected to have 10% to 20% efficiency and over 500°C hot side temperature limit. This paper presents the experimental synthesis procedure of both p-type and n-type skutterudite thermoelectric materials and the fabrication procedure of the thermoelectric modules using this material. These skutterudite materials were manufactured in the chemical lab in the University of Reading and then was fabricated into modules in the lab in Cardiff University. These thermoelectric materials can work up to as high as 500°C temperature and the corresponding modules can work at maximum 400°C hot side temperature. The performance loss from materials to modules has been investigated and discussed in this paper. By using a validated TEG model, the performance improvement using these modules has been estimated compared to commercial Bisemous Telluride modules
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id rr-article-9222050
institution Loughborough University
publishDate 2017
record_format Figshare
spelling rr-article-92220502017-01-01T00:00:00Z Improved thermoelectric generator performance using high temperature thermoelectric materials Zhijia Yang (1256040) Jesus PradoGonjal (7121492) Matthew Phillips (352053) Song Lan (1250349) Anthony Powell (7121495) Paz Vaqueiro (1587727) Min Gao (87060) Richard Stobart (7120745) Rui Chen (1257861) Other engineering not elsewhere classified untagged Engineering not elsewhere classified Thermoelectric generator (TEG) has received more and more attention in its application in the harvesting of waste thermal energy in automotive engines. Even though the commercial Bismuth Telluride thermoelectric material only have 5% efficiency and 250°C hot side temperature limit, it is possible to generate peak 1kW electrical energy from a heavy-duty engine. If being equipped with 500W TEG, a passenger car has potential to save more than 2% fuel consumption and hence CO2 emission reduction. TEG has advantages of compact and motionless parts over other thermal harvest technologies such as Organic Rankine Cycle (ORC) and Turbo-Compound (TC). Intense research works are being carried on improving the thermal efficiency of the thermoelectric materials and increasing the hot side temperature limit. Future thermoelectric modules are expected to have 10% to 20% efficiency and over 500°C hot side temperature limit. This paper presents the experimental synthesis procedure of both p-type and n-type skutterudite thermoelectric materials and the fabrication procedure of the thermoelectric modules using this material. These skutterudite materials were manufactured in the chemical lab in the University of Reading and then was fabricated into modules in the lab in Cardiff University. These thermoelectric materials can work up to as high as 500°C temperature and the corresponding modules can work at maximum 400°C hot side temperature. The performance loss from materials to modules has been investigated and discussed in this paper. By using a validated TEG model, the performance improvement using these modules has been estimated compared to commercial Bisemous Telluride modules 2017-01-01T00:00:00Z Text Conference contribution 2134/24128 https://figshare.com/articles/conference_contribution/Improved_thermoelectric_generator_performance_using_high_temperature_thermoelectric_materials/9222050 CC BY-NC-ND 4.0
spellingShingle Other engineering not elsewhere classified
untagged
Engineering not elsewhere classified
Zhijia Yang
Jesus PradoGonjal
Matthew Phillips
Song Lan
Anthony Powell
Paz Vaqueiro
Min Gao
Richard Stobart
Rui Chen
Improved thermoelectric generator performance using high temperature thermoelectric materials
title Improved thermoelectric generator performance using high temperature thermoelectric materials
title_full Improved thermoelectric generator performance using high temperature thermoelectric materials
title_fullStr Improved thermoelectric generator performance using high temperature thermoelectric materials
title_full_unstemmed Improved thermoelectric generator performance using high temperature thermoelectric materials
title_short Improved thermoelectric generator performance using high temperature thermoelectric materials
title_sort improved thermoelectric generator performance using high temperature thermoelectric materials
topic Other engineering not elsewhere classified
untagged
Engineering not elsewhere classified
url https://hdl.handle.net/2134/24128