EVALUATION OF CO-GENERATION AND TRI-GENERATION SYSTEMS EMPLOYING RECIPROCATING AND GAS TURBINE ENGINES FOR POWER GENERATION | ||||
The International Conference on Applied Mechanics and Mechanical Engineering | ||||
Article 42, Volume 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., May 2008, Page 176-198 PDF (473.32 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/amme.2008.39266 | ||||
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Authors | ||||
ELKADY E. A.1; SAID S. A.2; ELKADY M.A.3 | ||||
1Associate Prof., Mech. Eng. Dept., Faculty of Engineering, Al-Azhar University, Nasr City, Cairo, Egypt. | ||||
2M.Sc Applicant., Mech. Eng. Dept., Faculty of Engineering, Al-Azhar University, Nasr City, Cairo, Egypt. | ||||
3Professor, Mech. Eng. Dept., Faculty of Engineering, Al-Azhar University, Nasr City, Cairo, Egypt. | ||||
Abstract | ||||
ABSTRACT The present investigation is a trial to tackle the problem of energy rationalization in power generation. It is believed that such target can be reached through employment of tri-generation system for combined heating, cooling and power production (CHCP). The power range selected for the present study is from few hundreds kilowatt to five megawatts electric demand. The present study investigates four arrangements to select the best solution to achieve the requirements of power, cooling load, and/or heating load for various applications. These arrangements include tri-generation, cogeneration with heating, cogeneration with cooling, and separate unit arrangement. A computer program was developed in the present investigation using Lab-View graphical language. The developed computer code allows the selection of the most economical power generating system to satisfy given requirements of electric, heating and cooling loads. Moreover, the program model can determine the optimal strategies that minimize the overall cost of energy for the CHCP system. A comparison between the economics of each arrangement was conducted in terms of total cost saving ratio (TCSR). This comparison revealed a saving ranging from 15% to 25% of the total cost of the separate units arrangement within five years by using cogeneration or tri-generation arrangements. This saving is associated with the employed energy rationalization technique, which is defined in terms of the primary energy saving ratio (PESR). Cogeneration and tri-generation arrangements proved to be able to achieve primary energy saving ratios ranging from 25% to 30%. | ||||
Keywords | ||||
Cogeneration – tri-generation – reciprocating engines – solar fueled gas turbines – tons of refrigeration – energy efficiency ratio | ||||
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