Investigation of Mathematical Modelling to Assess the Performance of Solar Flat Plate Collector

Abstract

A study was under taken to assess the performance of solar flat plate water heater. A customized standard test rig was used for the performance study. Heat transfer phenomena in the collector system were calculated by using theoretical model. From the study it was found that various parameters have effects on the performance of the solar collector system are as follows. In order to improve the thermal efficiency of the solar collector system, inlet water temperature should be as low as possible. The efficiency is increases more or less linearly with ambient temperature. Increasing the thickness of insulation beyond 5 cm is worthless. Efficiency of the solar collector system will decreases with increase of wind speed. Transmission ratio of glass cover should be more than 0.95 in order to obtain higher thermal efficiency of the collector. If ambient temperature increases there will be higher efficiency of solar collector system because of less heat loss to thesurroundings.

Keywords

• Solar flat plate collector, Mathematical model, Thermal efficiency of solar collector, Useful heat gain, Solar water heating.

Kaynakça

1. Greentech Knowledge Solutions (p) Ltd. New Delhi, Website: www.greentechsolutions.co.in, 2010.
2. S. P. Sukhatme and J.K. Nayak. Solar energy; principles of thermal collection and storage, Third Edition. Tata McGraw-Hill publishing Company Limited, 2008.
3. Soteris A. Kalogiro, “Solar thermal collectors and applications”, Progress in energy and combustion science, vol. 30, pp. 231-295, 2004.
4. Fatigun A.T., Adesakin G.E., Gwani M., “Experimental determination of effect of the tube spacing on the performance of a flat plate collector”, International Journal of environmental sciences, vol. 3(1), pp. 363– 370, 2012.
5. A. Teyeb, L. Dehmani, C. Kerkeni and L. Kaabi, “Parametrical study of the influence of the climatic data and the construction properties on the efficiency of a collector/storage solar water heater”, Revue des Energies Renouvelable, vol. 11(1), pp. 87-94, 2008.
6. P. Rhushi Prasad, H.V. byregowda, and P. B. Gangavati, “Experiment analysis of flat plate collector and comparison of performance with tracking collector”, Europian Journal of scientific research, vol. 40(1), pp. 144-155, 2010.
7. Y. Raja Sekhar, K.V. Sharma and M. Basaveswara Rao, “Evaluation of heat loss coefficients in solar flat plate collector”, ARPN journal of engineering and Applied Sciences, vol. 4(5), pp. 15–19, 2009.
8. Raj Thundil karuppa R., Pavan P. and Reddy Rajeev D., “Experimental Investigation of a new solar of a flat plate collector”, Research Journal of Engineering science, vol. 1(4), pp. 1-8, 2012.

9. M.N. Nieuwoudt, and E.H. Mathews, “A mobile solar water heater for rural housing in southern Africa”, Building and Environment, vol. 40, pp. 1217-1234, 2005.
10. ANSI/ASHRAE Standard 93, 2003. Methods of testing to determine the thermal performance of solar collectors.
11. Soteris A. Kalogirou, Solar Energy engineering, 1st ed., Imprint of Elsevier: Academic Press, June-2009, Academic Press June- 2009, pp. 219-225
12. Tomas Matuska, Vladimir Zmrhal, and Juliane Metzger, “Detailed modelling of solar flat-plate collectors with design tool kolektor 2.2”, 11th International IBPSA Conference, Scotland, pp. 2289- 2296, 27-30 July 2009.
13. S. Farahat, F. Sarhaddi, H. Ajam, “Exergetic optimization of flat plate solar collectors”, Renewable Energy, vol. 34, pp. 1169-1174, 2009.
14. H.Y. Andoh, P. Gbaha, P. M.E. Koffi, S. Toure and G. Ado, “Experimental study on the comparative thermal performance of a solar collector Using coconut coir over the glass- wool thermal insulation for water heating system”, Journal of Applied Sciences, vol. 7 (21), pp. 3187-3197, 2007.