Numerical Investigation of the Effects of Rate-Shaped Main Injection on Combustion and Emission in an OPOC Two-Stroke Diesel Engine

Numerical Investigation of the Effects of Rate-Shaped Main Injection on Combustion and Emission in an OPOC Two-Stroke Diesel Engine

TK421; The effects of various split injection strategies on the opposed-piston opposed-cylinder (OPOC) diesel engine combustion and emission characteristics have been studied numerically using AVL-Fire CFD tools.The five rate-shaped main injections were used in split injection strategies.The results...

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Veröffentlicht in:北京理工大学学报（英文版） 2019-06, Vol.28 (2), p.226-233
Hauptverfasser: Lei Zhang, Tiexiong Su, Yunpeng Feng, Fukang Ma, Yangang Zhang, Jun Wang
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container_issue 2
container_start_page 226
container_title 北京理工大学学报（英文版）
container_volume 28
creator Lei Zhang
Tiexiong Su
Yunpeng Feng
Fukang Ma
Yangang Zhang
Jun Wang
description TK421; The effects of various split injection strategies on the opposed-piston opposed-cylinder (OPOC) diesel engine combustion and emission characteristics have been studied numerically using AVL-Fire CFD tools.The five rate-shaped main injections were used in split injection strategies.The results show that ignition delay from a rectangular injection rate is the shortest.Maximum pressure of the trapezoid injection rate is the largest.And the NOx emission of the rectangular injection rate is the largest.Meanwhile,the soot emission of the trapezoid injection rate is the least among the five injection rates.
doi_str_mv 10.15918/j.jbit1004-0579.17170
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title Numerical Investigation of the Effects of Rate-Shaped Main Injection on Combustion and Emission in an OPOC Two-Stroke Diesel Engine
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