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Effect of pilot fuel quantity on the performance of a dual fuel engine
Faculty
Science
Year:
2000
Type of Publication:
Article
Pages:
559-572
Authors:
Soliman, HA, Abd Alla, GH, Badr, OA, Abd Rabbo, MF
DOI:
10.1016/S0196-8904(99)00124-7
Journal:
ENERGY CONVERSION AND MANAGEMENT PERGAMON-ELSEVIER SCIENCE LTD
Volume:
41
Research Area:
Thermodynamics; Energy \& Fuels; Mechanics; Physics
ISSN
ISI:000084246300004
Keywords :
dual fuel engine, pilot fuel, knock, emissions, IDI engine
Abstract:
It is well known that the operation of dual fuel engines at lower loads suffers from lower thermal effciency and higher unburned percentages of fuel. To rectify this problem, tests have been conducted on a special single cylinder compression ignition research engine (Ricardo E6) to investigate the effect of pilot fuel quantity on the performance of an indirect injection diesel engine fuelled with gaseous fuel. Diesel fuel was used as the pilot fuel and methane or propane was used as the main fuel which was inducted into the intake manifold to mix with the intake air. Through experimental investigations, it is shown that, the low efficiency and excess emissions at light loads can be improved significantly by increasing the amount of pilot fuel, while increasing the amount of pilot fuel at high loads led to early knocking. (C) 1999 Elsevier Science Ltd. All rights reserved.
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