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Fuel injection characteristics of diesel‐stimulated natural gas combustion
Author(s) -
Mbarawa M.,
Milton B. E.,
Casey R. T.,
Miao H.
Publication year - 1999
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/(sici)1099-114x(199912)23:15<1359::aid-er560>3.0.co;2-7
Subject(s) - cetane number , combustion , diesel fuel , injector , nozzle , natural gas , combustion chamber , spray characteristics , fuel injection , nuclear engineering , diesel engine , waste management , secondary air injection , volume (thermodynamics) , environmental science , petroleum engineering , engineering , chemistry , automotive engineering , mechanical engineering , thermodynamics , spray nozzle , physics , biodiesel , organic chemistry , catalysis , biochemistry
Although dual‐fuel (DF) engines using a low cetane number primary fuel such as natural gas (NG) ignited by a pilot diesel spray have been the subject of much investigation over years, there are still many unknown problems related to the fundamental combustion process of two fuels. In this work, a quiescent constant volume combustion bomb and a 3‐D numerical model have been used to study the effects of injection nozzle characteristics on the combustion of pre‐mixed NG/air with pilot distillate spray. Experimental tests were conducted on combustion process of pre‐mixed natural gas/air with pilot injection pressure of 30 and 20 MPa with a 4 hole injector, and also with injector nozzle of 8 and 4 holes. The global results obtained from computations compared well with the experimental results. Copyright © 1999 John Wiley & Sons, Ltd.