Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences
Volume 16 No. 1, December 2015, Pages 15-32
J. Ghaderian1, C. S. Nor Azwadi1,*, H. A. Mohammed1
1Department of Thermofluid, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Johor, Malaysia
*Corresponding author: firstname.lastname@example.org
Exergy Analysis, Solar Air Heater, Flat Plate Heater, Energy Analysis, Exergy Losses, Efficiency
Energy is conserved in every device and in every action we are doing. The energy itself cannot be abandoned nor destroyed. However, energy conservation alone by using the first law of thermodynamics is insufficient in order to depict the internal losses for maximizing energy usage. Nevertheless, the second law analysis, exergy, provides important information about the optimum conditions and sources of inefficiencies together with their values and locations. The purpose of this study was to perform an exergy analysis of a solar air heater. The geometric and operation parameters including wind speed, solar radiation, collector area, ambient temperature and optical efficiency were considered as variables in this analysis. The focus was to determine the exergy efficiency of a doublepass solar air heater under forced flow condition by considering the affecting factors. The analysis was performed numerically using MATLAB simulation. Results of exergy efficiency were obtained and compared with the thermal efficiency of the solar air heater. It was found that exergy losses could be reduced by altering the variables until it reached the maximum efficiency. Solar collector area has been found to have the minimum effect on both thermal and exergy efficiencies, whereas incident solar radiation has the maximum effect. Values of 10% and 70% of exergy and energy efficiencies respectively have been obtained in the average solar radiation of about 4500 W/m².
CITE THIS ARTICLE
Ghaderian, J., et al. “Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System.” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 16.1 (2015): 15-32.
Ghaderian, J., Nor Azwadi, C. S., & Mohammed, H. A. (2015). Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 16(1), 15-32.
Ghaderian, J., C. S. Nor Azwadi, and H. A. Mohammed. “Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System.” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 16, no. 1 (2015): 15-32.
Ghaderian, J., Nor Azwadi, C.S. and Mohammed, H.A., 2015. Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 16(1), pp.15-32.
Ghaderian, J, Nor Azwadi, CS, Mohammed, HA. Modelling of Energy and Exergy Analysis for a Double-Pass Solar Air Heater System. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences. 2015;16(1):15-32.
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