Theoretical Analysis of Performance of a Micro Gas Turbine Co/Trigeneration System for Residential Buildings in a Tropical Region

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F., Basrawi and Yamada, Takanobu and Obara, Shin’ya (2013) Theoretical Analysis of Performance of a Micro Gas Turbine Co/Trigeneration System for Residential Buildings in a Tropical Region. Energy and Buildings, 67 . pp. 108-117. ISSN 0378-7788

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Official URL: http://dx.doi.org/10.1016/j.enbuild.2013.08.017

Abstract

This study shows performance of micro gas turbine (MGT) based cogeneration system (CGS) and trigeneration system (TGS) in residential buildings located in the area with a tropical climate. Energy, economic and environmental performance of MGT-CGS and MGT-TGS were studied. MGT-CGS consists of an MGT and an exhaust heat exchanger (EHE), whereas MGT-TGS consists of an MGT, an EHE, an absorption heat pump and a heat storage. Heat storage was essential for storing heat generated during daytime to be utilized during night-time in which heat demand was higher. MGT-TGS was a better configuration compared to MGT-CGS because it can utilize more exhaust heat and had Energy Recovery Utilized Efficiency (ηER,utilized) of 0.37 and 0.80 during daytime and night-time, respectively. Furthermore, the payback period for the MGT-TGS was also shorter than MGT-CGS, 13.8 years under highly subsidized electricity tariff. The MGT-TGS also had a higher Fuel Energy Saving Index FESI when compared to a gas turbine, but had a lower FESI when compared to a combined cycle gas turbine. MGT-CGS and MGT-TGS can also reduce pollutants especially NOx emissions compared to conventional systems.

Item Type:Article
Additional Information:Dr. Mohamad Firdaus Bin Basrawi (F. Basrawi)
Uncontrolled Keywords:Micro gas turbine; Cogeneration system; Trigeneration system; Energy efficiency; Emissions; Economic
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Faculty of Mechanical Engineering
ID Code:6346
Deposited By: Mrs. Neng Sury Sulaiman
Deposited On:25 Aug 2014 16:09
Last Modified:15 Oct 2014 11:02

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