... system with higher exergy efficiency and the cost is lower than that of glazed PV/T. Owing to the ambient temperature is low from 8:00 to 9:00, the electrical efficiency of the PV/T gradually increases. From 9:00 to 12:00, with the temperature and the solar radiation intensity increased, the electrical...

... on the system has some interesting results. The coefficient of performance (COP) and exergy efficiency values of the system using R41/cyclopentane tend to constantly decrease by nearly 4.05%. Although not as much as R41/cyclopentane, there is also a slight drop in the performance of other refrigerant pairs...

... components. Burner firing rate is limited to a value that corresponds to the maximum allowable temperature of tube metal of high-pressure (HP) superheater. According to the exergy analysis performed in the current study, the exergy efficiency of HRSG is about 80% which means 20% of flue gas exergy (entering...

... OURNAL OF E NERGY R ESOURCES T ECHNOLOGY . Manuscript received April 4, 2018; final manuscript received November 9, 2018; published online November 30, 2018. Assoc. Editor: Abel Hernandez-Guerrero. 04 04 2018 09 11 2018 R134a irreversibility exergy efficiency lithium bromide...

... fuel cell with 25 c m 2 active area and Nafion 117 membrane with 4 mg Pt c m - 2 for the anode and cathode is employed as a membrane electrode assembly. The results show that when the geometry of the cell is rectangular, the irreversibility of the cell is at lower value and the exergy efficiency...

..., as well as the natural direct discharge of the system. 01 08 2007 27 03 2008 22 05 2008 condition monitoring district heating geothermal power stations energy utilization geothermal energy sustainable resources energy efficiency exergy efficiency Exergy...