摘要
本文按直喷式柴油机实测放热率曲线的变化规律,将它们分成三类.在分析了采集误差与计算误差对瞬时放热率与累积放热率的影响后,提出可按实测放热率变化规律判定其可信程度.其中,第一类规律的实测放热率的可信度高,可以应用.文中还提出消除第二、三类规律放热率的可行措施.
Heat release rate (HRR) graphs measured from D. I. diesel engines were differentiated into 3 kinds according to their variation pattern and a method to judge their credibility was proposed. Effects of sampling process and data reduction on HRR were discussed and it was found that HRRC of first kind appeared more credible. Some ways to improve the measured HRRC were also suggested.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1993年第3期236-242,共7页
Transactions of Csice
关键词
柴油机
放热率
直喷式柴油机
Diesel engine
Heat release rate
Credibility judgement
