Design and performance analysis of biogasdiesel dual fuel generation system

Abstract

Biogas is produced by anaerobic digestion of various organic substances such as kitchen wastes, agricultural wastes, municipal solid wastes, and cow dung. Biogas has a good ability of formatting homogeneous mixture with air, and clean combustion nature; in contrast of harmful emissions that result from using another fuels, In addition to abundance of organic substances. In this project raw biogas contains about 57% methane (CH4), 43% carbon dioxide (CO2), traces of hydrogen sulfide (H2S) and fractions of water vapor, 20.52 MJ/m3 calorific value was tested as fuel for diesel-generator set through modified the diesel engine of generator to operate with biogas-diesel dual fuel system for supplying constant load, the test was covered the consumption rate of biogas in m3/kwh, the percentage saving in the consumption rate of diesel fuel, and the percentage of increase the amount of exhaust carbon dioxide (CO2). And the results were 0.45m3/kwh, 45%, 18.52%, respectively.