عنوان المقالة:12. Study on Effect of Heating Inlet Air Temperature on Emissions and Performance of Diesel Engine, JOURNAL OF APPLIED SCIENCES RESEARCH, 2015 April; 11(5).
Experiments were conducted with a TD212 four cylinder, air cooled, direct injection diesel engine operated over a range of inlet air temperatures. Air flow rate decreased and fuel flow rate increased with an increase in inlet air temperature, which reduced the air-fuel ratio of the engine. Engine efficiency decreased and exhausts gas temperature increased with an increase in inlet air temperature Injector needle lift data also confirmed that the fuel consumption increased with an increase in inlet air temperature. Results also showed that the brake specific HC and CO emissions increased with an increase in inlet air temperature. Average in-cylinder temperature increased with an increase in inlet air temperature, which might be a reason for higher NOx emissions. It also decreased the NOX emissions by 25.55% at the normal state of intake air temperature. The experiments have done in constant speed 2100 rpm and variable torque. We get lower fuel consumption by 15% and increasing in air fuel equivalence ratio by 30% as compared with the normal state. Keywords: Diesel, Combustion, Emissions.
INTRODUCTION Diesel engines used as prime movers are exposed to
ا.د جمال حميد وهيب | Prof.Dr Jamal Hameed Waheb | 10187