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Performance and emissions of a heavy-duty diesel engine fuelled with diesel and LNG (liquid natural gas)

Title
Performance and emissions of a heavy-duty diesel engine fuelled with diesel and LNG (liquid natural gas)
Authors
Cheenkachorn, KraipatPoompipatpong, ChedthawutHo, Choi Gyeung
DGIST Authors
Ho, Choi Gyeung
Issue Date
2013-05-01
Citation
Energy, 53, 52-57
Type
Article
Article Type
Article
Keywords
Carbon DioxideCarbon MonoxideDiesel EngineDiesel EnginesDual-Fuel OperationDual Fuel EnginesEmission InventoryEmissionsEnergy EfficiencyEngine PerformanceFuel ConsumptionHeavy-Duty Diesel EngineLiquefied Natural GasLiquidsModified Diesel EngineNatural GasNitrogen OxidesParticulate EmissionsPerformance and EmissionsPerformance AssessmentSpecific Fuel ConsumptionThermal EfficiencyTorqueTotal HydrocarbonsVolumetric Efficiency
ISSN
0360-5442
Abstract
This paper presents the effects of liquid natural gas on a heavy-duty diesel engine. Natural gas was used as primary fuel, while a pilot amount of diesel was used as an ignition source. The amount of each fuel was adjusted to obtain comparable brake torque and power output from the dual engine operation, while no knocking was observed. The engine performance and emissions from the diesel and dual fuel engine tests were conducted over the engine speed range between 1100 and 1900 rpm. The engine performance included torque, power, specific fuel consumption (SFC), volume efficiency, and thermal efficiency. The emissions tested were total hydrocarbon (THC), nitrogen oxides (NOx), carbon dioxide (CO2) and carbon monoxide (CO) emissions. The results showed that the maximum portion of natural gas in the dual fuel engine operation was up to 77.90% at 1300 rpm. Compared to the diesel operation, the dual fuel operation showed less specific fuel consumption, thermal efficiency, and volumetric efficiency. The emissions of THC and CO from the dual fuel engine operation were higher, while the emissions of NOx and CO2 were lower. © 2013 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/5316
DOI
10.1016/j.energy.2013.02.027
Publisher
Elsevier Ltd
Related Researcher
Files:
There are no files associated with this item.
Collection:
School of Undergraduate Studies1. Journal Articles


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