Experimental Investigation on Performance Analysis of C.I. Engine using Diesel with Biogas

The conventional fuels are depleting rapidly because of increase in the living standards and use of advance technologies. Some major petroleum fuels of this class, especially petrol and diesel for internal combustion engines are getting exhausted at a frightening rate. In order to conserve those fuels for survival of technologies, it is essential to plan for new energy systems. Similarly, the fossil fuels are also caused environmental problems as they release toxic gases into the atmosphere at a very high concentration. The energy security and climate change are the key issues for transformation of energy system from conventional to the renewable sources. Biogas is a bio-fuel which has high energy value, better mixing ability and clean burning nature, could be considered as good alternate to substitute the petroleum fuels.

This paper focuses on thorough analysis and performance characteristics of a single cylinder, 4-stroke compressed ignition (C.I.) engine containing dual fuel mode. The biogas used for current work is considered as a primary fuel whereas diesel is acted as secondary fuel which is regarded as a pilot fuel. Alone the diesel contains a large numbers of harmful exhausts, the dual fuel mode containing biogas-diesel can be an alternative option to get better and clean burning exhausts. In the current work, the purified biogas (bio-methane, 98% pure methane) stored at a high pressure cylinder is used in various flow rates. The performance characteristics such as Brake Specific Fuel Consumption, Brake Thermal Efficiency and Exhaust Gas Temperature are evaluated properly.