ABSORPTANCE OF DIFFERENT LOCAL COATED SURFACES TO SOLAR RADIATION IN EGYPT

El-Gayar, S.M.; Gad, H.E.; Gad, H. H.

doi:10.21608/mjae.2014.98417

ABSORPTANCE OF DIFFERENT LOCAL COATED SURFACES TO SOLAR RADIATION IN EGYPT

Document Type : Original Article

Authors

¹ Agric. Eng. Res. Inst., A. R. C, Giza, 256, Egypt.

² Fac. of Eng., Mansoura University, 35516, Egypt.

10.21608/mjae.2014.98417

Abstract

This study was carried out on the roof of the Thermal Eng. Laboratory, Mechanical power Dept., Fac. of Eng., Mansoura Univ., during selected clear days of April and one clear day of May, 2013. An experimental set up was designed and installed to measure the absorptance of 11 coated surfaces and one sheet without color. Then, the temperature of tested surfaces were calculated. The results showed that, G.I sheets coated with black bored (Bb), polish black (Pb), brown (Br), red (R), violet (V), green (G), blue (Blu), G.I. sheet without color, dark yellow (Yd), yellow (Y), silver (S) and white (W), are 0.92, 0.886, 0.888, 0.855, 0.852, 0.843, 0.830, 0.802, 0.788,0.785, 0.746, and 0.666 respectively.

References

Anderson T.N., Duke M., and J.K., Carson (2010) “The Effect of Color on the Thermal Performance of Building Integrated Solar Collectors”, Solar Energy Materials & Solar Cells 94: 350–354.

Chao-C. C., Ching-Li H. and L. C., Cheng (2013) “Poly (Urethane)-Based Solar Absorber Coatings Containing Nanogold”, Solar Energy 91: 350–357.

Ehab A., (2010) “Testing of a New Solar Coating for Solar Water Heating Applications”, Solar Energy 84: 1637–1643.

Esposito S., Antonaia A., Addonizio M.L., and S., Aprea (2009) “Fabrication and Optimization of Highly Efficient Cermet-Based Spectrally Selective Coatings for High Operating Temperature”, Thin Solid Films 517: 6000–6006.

Gad H.E., and H.H., Gad (2015) “Development of a New Temperature Data Acquisition System for Solar Energy Applications”, Renewable Energy Journal, 74: 337-343.

Hiroki G., Mehdi B., Junnosuke O., Atsuki K., and M., Shigenao (2013) “Controlling the Radioactive Properties of Cool Black-Color Coatings Pigmented With Cuo Submicron Particle”, Journal of Quantitative Spectroscopy & Radioactive Transfer.

Ibrahim D., ( 2008) “Advanced PIC Microcontroller Projects in C”, Newnes.

James R. G., and W. S., Kenneth (2010)“Measurement of the Solar Absorptance and Thermal Emittance of Lunar Simulants”, 40^th International Conference on Environmental Systems, Barcelona, Spain, July 11–15.

Kalogiroua S., Tripanagnostopoulos Y., and M., Souliotis (2005) “Performance of Solar Systems Employing Collectors with Colored Absorber”, Energy and Buildings 37:824–835.

Kolokotsa D., Maravelaki K., Papantoniou S., Vangeloglou E., Saliari M., Karlessi T., and M., Santamouris (2012) “Development and Analysis of Mineral Based Coatings for Buildings and Urban Structures”, Solar Energy 86:1648–1659.

Lamont, W. J., (1999 ) "The Use of Different Colored Mulches for Yield and Earliness", Proceedings of the New England Vegetable and Berry Growers Conference and Trade Show, Sturbridge, Mass., 299-302.

Nwosu P. N., and I. O.,Wilfred (2008) “Effect of an Absorptive Coating on Solar Energy Storage in a Thrombe Wall System”, Energy and Buildings 40 :371–374.

Orela Z. C., Klanjsek G. M., and M.G., Hutchins(2005) “Spectrally Selective Solar Absorbers in Different Non-Black Colours”, Solar Energy Materials & Solar Cells 85:41–50.

Zhu D., and S.,Zhao(2010) “Chromaticity and Optical Properties of Colored and Black Solar–Thermal Absorbing Coatings”, Solar Energy Materials and Solar Cells 94:1630 - 1635.