Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/142086
Title: Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method
Authors: Teo, Aaron Edward Sheng Jye
Chiong, Meng Soon
Yang, Mingyang
Romagnoli, Alessandro
Martinez-Botas, Ricardo F.
Rajoo, Srithar
Keywords: Engineering::Mechanical engineering
Issue Date: 2018
Source: Teo, A. E. S. J., Chiong, M. S., Yang, M., Romagnoli, A., Martinez-Botas, R. F., & Rajoo, S. (2019). Performance evaluation of low-pressure turbine, turbo-compounding and air-Brayton cycle as engine waste heat recovery method. Energy, 166, 895-907. doi:10.1016/j.energy.2018.10.035
Journal: Energy
Abstract: 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).
URI: https://hdl.handle.net/10356/142086
ISSN: 0360-5442
DOI: 10.1016/j.energy.2018.10.035
Rights: © 2018 Published by Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MAE Journal Articles

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