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An experimental investigation of fuel‐injection‐pressure and engine‐speed effects on the performance and emission characteristics of a divided‐chamber diesel engine
Author(s) -
Kouremenos D. A.,
Rakopoulos C. D.,
Yfantis E. A.,
Hountalas D. T.
Publication year - 1993
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/er.4440170409
Subject(s) - diesel engine , exhaust gas recirculation , fuel injection , combustion chamber , combustion , secondary air injection , diesel fuel , automotive engineering , internal combustion engine , diesel cycle , exhaust gas , four stroke engine , homogeneous charge compression ignition , thrust specific fuel consumption , diesel exhaust , mean effective pressure , petrol engine , engineering , chemistry , waste management , compression ratio , organic chemistry
An experimental study is conducted to investigate the fuel‐injection‐pressure and engine‐speed effects on the performance and exhaust emissions of a naturally aspirated four‐stroke indirect‐injection (IDI) diesel engine with a swirl combustion chamber. The influence of the injection pressure and the engine rotational speed on fuel consumption, exhaust‐gas temperature, exhaust smokiness and exhaust‐gas emissions (nitrogen oxides and unburned hydrocarbons) is examined, following a detailed experimental investigation. Empirical easy‐to‐use correlations are produced, expressing the variation of the various parameters with injection pressure, by applying a regression analysis on the curves fitting the relevant experimental data. Theoretical aspects of diesel fuel spray progress (atomization, evaporation and mixing), combustion and emissions formation are used for the interpretation of the observed engine behaviour.