Development of the tracer gas method for large bore natural gas engines - Part I: Method validation

被引：18

作者：

Olsen, DB ^{[1
]}

Hutcherson, GC ^{[1
]}

Willson, BD ^{[1
]}

Mitchell, CE ^{[1
]}

机构：

[1] Colorado State Univ, Dept Mech Engn, Engines & Energy Convers Lab, Ft Collins, CO 80523 USA

来源：

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME | 2002年 / 124卷 / 03期

关键词：

D O I：

10.1115/1.1454116

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The tracer gas method is investigated as a means to study scavenging in fuel-injected large-bore two-stroke cycle engines. The investigation is performed on a Cooper-Bessemer GMV-4TF natural gas engine, with a 36-cm bore and a 36-cm stroke. Two important parameters are evaluated from the tracer gas measurements, which are scavenging efficiency and trapped A/F ratio. Measurements with the tracer gas method are compared with in-cylinder sampling techniques to evaluate the accuracy of the method. Two different tracers are evaluated, monomethylamine and nitrous oxide. Monomethylamine is investigated because of its common use historically as a tracer gas. Nitrous oxide is a new tracer gas that overcomes many of the difficulties experienced with monomethylamine. The tracer gas method with nitrous oxide is determined to be accurate for evaluating scavenging efficiency and trapped A/F ratio in comparison to the in-cylinder sampling techniques implemented.

引用

页码：678 / 685

页数：8

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