Effect of Collector Aspect Ratio on the Thermal Performance of Wavy Finned Absorber Solar Air Heater
A theoretical investigation on the effect of collector aspect ratio on the thermal performance of wavy finned absorber solar air heaters has been performed. For the constant collector area, the various performance parameters have been calculated for plane and wavy finned solar air heaters. It has been found that the performance of wavy finned solar air heater improved with the increase in the collector aspect ratio. The performance of wavy finned solar air heater has been found 30 percent higher than those of plane solar air heater. The obtained results for wavy fin solar air heaters are compared with the available experimental data of most common type solar air heaters.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124371Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1156
 Duffie J.A and Beckman W.A., "Solar Engineering of Thermal Processes", New York: Wiley. 1980.
 Yeh HM, HO CD, Lin CY. "Effect of collector aspect ratio on the collector efficiency of upward type baffled solar air heaters". Energy Conversion & Management. 2000; 41:971-981.
 Ong KS. "Thermal performance of solar air heaters: mathematical model and solution procedure". Solar Energy; 55(2):93-109,1995.
 Gao. W, Lin. W, Liu. T, Xia. C, "Analytical and experimental studies on the thermal performance of cross- corrugated and flat plate solar air heaters". Applied Energy. 84;425-441,2007.
 Piao, Y. Hauptmann, E.G. and Iqbal, N. "Forced convective heat transfer in cross corrugated solar air heaters". Journal of Solar Energy Engineering. 116; 212-214,1994.
 Goldstein, L. Sparrow, G.M, "Heat and mass transfer characteristics for flow in a corrugated wall channel", ASME Journal of Heat Transfer. 99;187-195,1977.
 Naphon, Pasiarn. Kongtragool, Bancha." Theoretical study on heat transfer characteristics and performance of the flat plate solar air heaters." International Communications in Heat and Mass Transfer. 30(8); 1125-1136,2003.
 Ammari H.D. "A mathematical model of thermal performance of a solar air heater with slats". Renewable Energy:28; 1597–1615,2003.
 Bracamonte, J. Baritto, M. "Optimal aspect ratios for non-isothermal flat plate solar collectors for air heating". Solar Energy. 97; 605–613,2013.
 Junqi Dong, Lin Su, Qian Chen, Weiwu Xu. "Experimental study on thermal–hydraulic performance of a wavy fin-and-flat tube aluminium heat exchanger" Applied Thermal Engineering; 51: 32–39,2013.
 Y.B. Tao, Y.L. He, J. Huang, Z.G. Wu, W.Q. Tao. "Numerical study of local heat transfer coefficient and fin efficiency of wavy fin-and-tube heat exchangers" International Journal of Thermal Sciences, 46: 768–778, 2007.
 S.F. Tsai, T.W.H. Sheu, S.M. Lee."Heat transfer in a conjugate heat exchanger with a wavy fin surface", International Journal of Heat and Mass Transfer, 42: 1735–1745, 1999.
 Dong, J. Chen Jiangping, Chen Zhijiu, Zhou Yimin, Zhang Wenfeng. "Heat transfer and pressure drop correlations for the wavy fin and flat tube heat exchangers "Applied Thermal Engineering, 27: 2066–2073, 2007.
 Choudhary C., Andersen S.L and Rekstad J."A solar air heater for low temperature applications". Solar Energy; 40(4): 335-343, 1988.
 Krieder J.F and Krieth. "Principles of Solar Engineering", 2nd Edition, McGraw Hill Book Company, New York, 1978.