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Low Temperature Combustion in a Heavy Duty Diesel Engine Using High Levels of EGR
Technical Paper
2006-01-0075
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The possibilities for extending the range of engine loads in which soot and NOx emissions can be minimised by using low temperature combustion in conjunction with high levels of EGR was investigated in a series of experiments with a single cylinder research engine. The results show that very low levels of both soot and NOx emissions can be achieved at engine loads up to 50 % by reducing the compression ratio to 14 and applying high levels of EGR (up to approximately 60 %). Unfortunately, the low temperature combustion is accompanied by increases in fuel consumption and emissions of both HC and CO. However, these drawbacks can be reduced by advancing the injection timing.
The research engine was a 2 litre direct injected (DI), supercharged, heavy duty, single cylinder diesel engine with a geometry based on Volvo's 12 litre engine, and the amount of EGR was increased by adjusting the exhaust back pressure while keeping the charge air pressure constant.
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Alriksson, M. and Denbratt, I., "Low Temperature Combustion in a Heavy Duty Diesel Engine Using High Levels of EGR," SAE Technical Paper 2006-01-0075, 2006, https://doi.org/10.4271/2006-01-0075.Also In
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