Transactions of Society of Automotive Engineers of Japan
Online ISSN : 1883-0811
Print ISSN : 0287-8321
ISSN-L : 0287-8321
Research Paper
A Consideration of Exhaust Heat Regeneration in a High EGR Rate and High Boosted 6 Cylinder Heavy Duty
Takuya Yamaguchi, Yuzo Aoyagi, Noboru Uchida, Masayuki Kobayashi, Takayuki Adachi, Munemasa Hashimoto, Akira Fukunaga
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Keywords: heat engine, compression ignition engine, performance, fuel economy, efficiency, Rankine cycle
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2014 Volume 45 Issue 6 Pages 977-982

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Abstract
The effect of waste heat recovery (WHR) on fuel consumption of a high boosted diesel engine was predictively evaluated. The available energy of waste heat has a big potential to improve brake thermal efficiency (BTE). The maximum BTE by WHR was predicted 55.0 % at full load operation (Ne=1600rrpm), if available energy is converted into effective work without any losses. On the other hand, the conversion efficiency of combined cycle is fairly low. So, the improvement in fuel consumption by combined cycle was estimated 3.4% at full load operation (Ne=1200rpm).
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© 2014 Society of Automotive Engineers of Japan, Inc.
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