Staff View: Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method

Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method

This paper presents an equivalent comparison of waste heat recovery method on an internal combustion engine using low-pressure turbine (LPT), turbo compound (TC) & air-Brayton cycle (ABC). A 5.9 L, six cylinders turbocharged diesel engine is used for this case study. All recovery methods are sim...

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Main Authors:	Teo, A. E., Chiong, M. S., Yang, M., Romagnoli, A., Martinez-Botas, R. F., Rajoo, S.
Format:	Article
Published:	Elsevier Ltd. 2019
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/88472/ http://dx.doi.org/10.1016/j.energy.2018.10.035
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id	my.utm.88472
record_format	eprints
spelling	my.utm.884722020-12-15T00:06:46Z http://eprints.utm.my/id/eprint/88472/ Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method Teo, A. E. Chiong, M. S. Yang, M. Romagnoli, A. Martinez-Botas, R. F. Rajoo, S. TJ Mechanical engineering and machinery This paper presents an equivalent comparison of waste heat recovery method on an internal combustion engine using low-pressure turbine (LPT), turbo compound (TC) & air-Brayton cycle (ABC). A 5.9 L, six cylinders turbocharged diesel engine is used for this case study. All recovery methods are simulated on AVL BOOST where the engine model, turbocharger and heat exchanger are validated with experimental data. It is found that all three methods cannot work effectively without at least reducing the turbocharger turbine size to amplify the compressor surplus power. It is done by using a commercially available turbocharger turbine with smaller area over radius (A/R) volute, hence ensuring the least possible engine hardware change. In all the cases, the engine is ensured to deliver its baseline brake power. It is shown that LPT can recover the most exhaust waste heat (up to 5.40 kW), followed by TC (up to 1.75 kW) and ABC (up to 0.64 kW). Elsevier Ltd. 2019-01 Article PeerReviewed Teo, A. E. and Chiong, M. S. and Yang, M. and Romagnoli, A. and Martinez-Botas, R. F. and Rajoo, S. (2019) Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method. Energy, 166 . pp. 895-907. ISSN 0360-5442 http://dx.doi.org/10.1016/j.energy.2018.10.035 DOI:10.1016/j.energy.2018.10.035
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Teo, A. E. Chiong, M. S. Yang, M. Romagnoli, A. Martinez-Botas, R. F. Rajoo, S. Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
description	This paper presents an equivalent comparison of waste heat recovery method on an internal combustion engine using low-pressure turbine (LPT), turbo compound (TC) & air-Brayton cycle (ABC). A 5.9 L, six cylinders turbocharged diesel engine is used for this case study. All recovery methods are simulated on AVL BOOST where the engine model, turbocharger and heat exchanger are validated with experimental data. It is found that all three methods cannot work effectively without at least reducing the turbocharger turbine size to amplify the compressor surplus power. It is done by using a commercially available turbocharger turbine with smaller area over radius (A/R) volute, hence ensuring the least possible engine hardware change. In all the cases, the engine is ensured to deliver its baseline brake power. It is shown that LPT can recover the most exhaust waste heat (up to 5.40 kW), followed by TC (up to 1.75 kW) and ABC (up to 0.64 kW).
format	Article
author	Teo, A. E. Chiong, M. S. Yang, M. Romagnoli, A. Martinez-Botas, R. F. Rajoo, S.
author_facet	Teo, A. E. Chiong, M. S. Yang, M. Romagnoli, A. Martinez-Botas, R. F. Rajoo, S.
author_sort	Teo, A. E.
title	Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
title_short	Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
title_full	Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
title_fullStr	Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
title_full_unstemmed	Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
title_sort	performance evaluation of low-pressure turbine, turbo-compounding and air-brayton cycle as engine waste heat recovery method
publisher	Elsevier Ltd.
publishDate	2019
url	http://eprints.utm.my/id/eprint/88472/ http://dx.doi.org/10.1016/j.energy.2018.10.035
_version_	1687393575965294592
score	13.211869

Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method

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