SI Gas Engine: Evaluation of Engine Performance, Efficiency and Emissions Comparing Producer Gas and Natural Gas

2011 ◽  
Vol 4 (1) ◽  
pp. 1202-1209 ◽  
Author(s):  
Jonas Ulfvik ◽  
Matthias Achilles ◽  
Martin Tuner ◽  
Bengt Johansson ◽  
Jesper Ahrenfeldt ◽  
...  
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Producer Gas ◽  
Gas Engine

HCCI Gas Engine: Evaluation of Engine Performance, Efficiency and Emissions - Comparing Producer Gas and Natural Gas

2011 ◽  
Author(s):  
Matthias Achilles ◽  
Jonas Ulfvik ◽  
Martin Tuner ◽  
Bengt Johansson ◽  
Jesper Ahrenfeldt ◽  
...  
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Producer Gas ◽  
Gas Engine

Ignition System Designed to Extend the Plug Life, and the Lean Limit in a Natural Gas Engine

2003 ◽  
Author(s):  
A. K. Chan ◽  
S. H. Waters
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Ignition System ◽  
Gas Engine ◽  
Natural Gas Engine ◽  
Dc System ◽  
Spark Plug ◽  
Long Duration ◽  
Discharge Duration ◽  
Lean Limit

An ignition system that is based on the alternating (AC) rather than the traditional direct (DC) current in the spark plug discharge has been developed at the Caterpillar Technical Center. This system can generate a long duration discharge with controllable power. It is believed that such an ignition system can provide both a leaner operating limit and a longer spark plug life than a traditional DC system due to the long discharge duration and the low discharge power. The AC ignition system has successfully been tested on a Caterpillar single cylinder G3500 natural gas engine to determine the effects on the engine performance, combustion characteristics and emissions. The test results indicate that while the AC ignition system has only a small impact on engine performance (with respect to a traditional DC system), it does extend the lean limit with lower NOx emissions. Evidences also show the potential of reduce spark plug electrode erosions from the low breakdown and sustaining discharge powers from the AC ignition system. This paper summarizes the prototype design and engine demonstration results of the AC ignition system.

Improvement of dual-fuel biodiesel-producer gas engine performance acting on biodiesel injection parameters and strategy

Fuel ◽  
2017 ◽  
Vol 209 ◽  
pp. 754-768 ◽  
Author(s):  
A.P. Carlucci ◽  
A. Ficarella ◽  
D. Laforgia ◽  
L. Strafella
Keyword(s):  
Engine Performance ◽  
Dual Fuel ◽  
Producer Gas ◽  
Gas Engine ◽  
Injection Parameters

Landfill Gas Application Development of the Caterpillar G3600 Spark-Ignited Gas Engine

1995 ◽  
Vol 117 (4) ◽  
pp. 820-825 ◽  
Author(s):  
G. P. Mueller
Keyword(s):  
Natural Gas ◽  
Field Test ◽  
Landfill Gas ◽  
Engine Performance ◽  
Development Work ◽  
Fuel System ◽  
Application Development ◽  
Gas Engine ◽  
Performance Development ◽  
Simulated Landfill

A G3600 engine was developed to operate on landfill gas to demonstrate engine performance and identify any operational problems caused by this application. Fuel system and engine performance development were completed using simulated landfill gas containing carbon dioxide and natural gas at the Caterpillar Technical Center. The engine was packaged as a generator set and has operated for 12,000 hours on landfill gas. Engine performance goals similar to those for G3600 natural gas applications were achieved during development and were attained during the field test. Development work and field test endurance results are presented in this paper.

Adaptation of small capacity natural gas engine for producer gas operation

2011 ◽  
Vol 226 (6) ◽  
pp. 1568-1578 ◽  
Author(s):  
S Dasappa ◽  
G Sridhar ◽  
P J Paul
Keyword(s):  
Natural Gas ◽  
Critical Evaluation ◽  
Producer Gas ◽  
Gas Engine ◽  
Load Variations ◽  
Natural Gas Engine ◽  
Engine Cooling ◽  
Energy Flows ◽  
Brake Mean Effective Pressure ◽  
Shaft Power

This article addresses the adaptation of a low-power natural gas engine for using producer gas as a fuel. The 5.9 L natural gas engine with a compression ratio of 10.5:1, rated at 55 kW shaft power, delivered 30 kW using producer gas as fuel in the naturally aspirated mode. Optimal ignition timing for peak power was found to be 20° before top dead centre. Air-to-fuel ratio (A/F) was found to be 1.2 ± 0.1 over a range of loads. Critical evaluation of the energy flows in the engine resulted in identifying losses and optimizing the engine cooling. The specific fuel consumption was found to be 1.2 ± 0.1 kg of biomass per kilowatt hour. A reduction of 40 per cent in brake mean effective pressure was observed compared with natural gas operation. Governor response to load variations has been studied with respect to frequency recovery time. The study also attempts to adopt a turbocharger for higher power output. Preliminary results suggest a possibility of about 30 per cent increase in the output.

Evaluation of Engine Performance and Combustion in Natural Gas Engine with Pre-Chamber Plug under Lean Burn Conditions

2014 ◽  
Vol 8 (1) ◽  
pp. 221-229 ◽  
Author(s):  
Yoshitane Takashima ◽  
Hiroki Tanaka ◽  
Takahiro Sako ◽  
Masahiro Furutani
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Lean Burn ◽  
Gas Engine ◽  
Natural Gas Engine
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