The investigation of turbo generator on exhaust manifold in spark ignition engine

Ardika Ridal, Awang (2013) The investigation of turbo generator on exhaust manifold in spark ignition engine. Project Report. UTeM, Melaka. (Submitted)

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Abstract

In vehicle system, there many types of energy flow from the source of fossil fuel to the chemical reaction in combustion chamber throughout exhaust system. Without realize, lots of waste energy had occurred when the engine started. In fact, there is only 12-15% of the energy from the fuel gets the vehicle travel on the road and used in vehicle accessories. The rest of the energy is lost to engine, idling, driveline, aerodynamic drag, rolling resistance, overcoming inertia, braking and especially exhaust system, the temperature can reach around 900°C with a pressure up to 2 Bar and this heat and pressure or thermal and kinetic energy are release to the environment as waste. Therefore, a system is required to reduce or recover the waste energy in vehicle. Thus, the investigation of Turbo-Generator system is conducted in which uses the energy losses and waste from the exhaust system by converting the waste energy to electrical energy. The methodology of this system, when energy flow to the exhaust system it will rotate the turbine and the turbine will rotates the generator. The generator produce electricity as an output by converting the mechanical energy from the turbine to electrical energy. The electricity produced can be stored to the battery or uses for other purpose such electrical equipment. During the fabrication, installation and testing of Turbo-Generator system, there were some setback. However, some of the data obtained still can be analyse to investigate the effect and output of Turbo-Generator system in a vehicle. The system produced an output of 24.47V at 11230.47 RPM of turbine speed with only 3461.91 RPM of engine speed. The vehicle performance also has similar behaviour with the Turbo-Generator system and without the system. Thus, Turbo-Generator system will benefit in every vehicle as a waste energy recovery

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