A New CNG Engine Test for the Evaluation of Natural Gas Engine Oils

1998 ◽  
Author(s):  
Wim van Dam ◽  
John P. Graham ◽  
Robert T. Stockwell ◽  
Alfredo M. Montez
Keyword(s):  
Natural Gas ◽  
Engine Test ◽  
Gas Engine ◽  
Engine Oils ◽  
Natural Gas Engine ◽  
Cng Engine

Development of an Open Path Laser Ignition System for a Large Bore Natural Gas Engine: Part 2 — Single Cylinder Demonstration

2005 ◽  
Author(s):  
David L. Ahrens ◽  
Daniel B. Olsen ◽  
Azer P. Yalin
Keyword(s):  
Natural Gas ◽  
Combustion Stability ◽  
Electrode Erosion ◽  
Laser Ignition ◽  
Engine Test ◽  
Test Results ◽  
Ignition System ◽  
Gas Engine ◽  
Natural Gas Engine ◽  
Spark Plug

Using a laser, as opposed to a conventional (electrical) spark plug, to create a combustion initiating spark is potentially advantageous for several reasons: flexibility in choosing and optimizing the spark location, in particular to move the spark away from solid heat sinks; production of a more robust spark containing more energy; and obviation of electrode erosion problems. In this paper we present the on-engine test results of the laser ignition system on a large bore natural gas engine. Test results include: mass fraction burn duration, hydrocarbon emissions data, and combustion stability comparisons to the conventional spark plug ignition system. Design and spark location considerations for the laser ignition system were presented in the first paper of this two-paper series.

Measured and Predicted Performance of a Downsized, Medium Duty, Natural Gas Engine

2017 ◽  
Author(s):  
Robert Draper ◽  
Brendan Lenski ◽  
Franz-Joseph Foltz ◽  
Roderick Beazley ◽  
William Tenny
Keyword(s):  
Natural Gas ◽  
Gas Engine ◽  
Natural Gas Engine
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