Fırat EKİNCİ, Abdurrahman YAVUZDEĞER

Performance analysis of grid-connected micro-cogeneration system based on the internal combustion engine

The effective usage of energy is an important factor in our country and world. The cogeneration system is one of the methods for the effective usage of energy. The cogeneration system in recent technology is about 30% more effective in reducing fuel consumption and carbon footprint compared to the power and heat production efficiency for traditional systems feeding by fossil fuels. Over the last decade, extensive research has been undertaken on the optimization and use of low-capacity internal combustion gas engines in micro-combined heat-power systems. Problems such as the technology used in the micro-cogeneration system, fuel type and performance, efficiency of the system, utilization of different fuel types, noise, emission, maintenance problems have not been solved yet. In recent years, intensive studies have been carried out on the fuel cells that are being used for the cogeneration system, but the cost and the low life span of fuel cell cogeneration systems are preventing it from becoming widespread. With the proposed system, it will be easily applied in small scale places such as houses, offices, campuses, hospitals, shopping malls, and electricity and heat production efficiency will be used effectively for low CO2 emission. In this paper, the integration of an internal combustion engine which has 9.8kW and 1500 revolutions per minute (rpm) properties, a synchronous generator and grid connection have been successfully achieved and the performance results of the proposed system have been obtained by using MATLAB/Simulink.

Keywords:

micro-cogeneration, internal combustion engine energy efficiency, engine modeling,

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