2001 Volume 63 Issue 2 Pages 76-83
The purpose of the study is development and investigation about basic performance of the system operation on a dual fueled cogeneration system (CGS), which is operated with Biogas and gas oil. As often seen in dual fueled CGS performance, the electric generating efficiency was obtained about 26%. Methane contained in the biogas could not burn completely at lower load, and it was discharged into exhaust gas. Considerable amount of the methane burned in the exhaust pipe, and the heat recovery ratio was 42% on heat balance. As a result, the total heat efficiency, which is a summation of generating efficiency and heat recovery efficiency reached to about 68%. The supply of biogas into the engine reduces smoke density and NOx concentration in exhaust gas.
At lower load, methane burned slowly and large portion of it was discharged without burning. To solve this problem, the development of the measures, which promote the complete combustion of methane, is important.
