Submit your papersSubmit Now
For Enquiries: [email protected]
IIARD LogoIIARD

Thermal Conductivity of Selected Aluminum Roofing Sheets in Nigeria

Obulor Promise Victor, Materials

Abstract

Thermal conductivity of six samples was determined. Samples are pure aluminum long span roofing sheets with red, blue, black, green and white colours. Giralle roofing sheet was also examined. The lees’ disc steady state method was used and the results show the thermal conductivity of the samples as follows; 254.609 + 0.0065 Wm-1k-1 for red, 207.253 + 0.0063 Wm-1k-1 for blue, 111.659 + 0.0058 Wm-1k-1 for black, 301.123 + 0.0055 Wm-1k- 1green, 229.925 + 0.0053 Wm-1k-1 for white and 152.738 + 0.0055 Wm-1k-1 for giralle respectively. From these results, green coated sheets had the highest thermal conductivity value of 301.123 + 0.0055 Wm-1k-1 and black has the least thermal conductivity value of 111.659 + 0.0058 Wm-1k-1. It was further observed that the colour of coating affected the thermal conductivity of the samples and was therefore concluded that green is the most suitable sample for roofing and black is the least.

References

Ababio, O. Y., (2003); New School Chemistry for Senior Secondary School, Revised edition, Onitsha, Africana First Publishers. Akpabio, G. T. (1999); Thermal Response of Different Walling Materials for a self Cooling Building Design. Global Journal of Pure and Applied Science, 5(1),139-141. Alam, M., Rahman, S., Halder, P. K. ,Raquib, A., & Hasan, M. (2012); Lees, and Charlton’s method for Investigation of Thermal Conductivity of Insulating Materials. Journal of Mechanical and Civil Engineering, 3(1), 53 – 60. Retrieved from http://iosrjournals.org Anyakoha, M. W. (2007); New School Physics for Senior Secondary School, Revised Edition, Onitsha, Africana First Publishers. Etuk, E. S., Akpabio, L. E. and Akpabio, K. E. (2005); Determination of Thermal Properties of Cocos Nucifera trunk, The Arabian Journal For Science and Engineering, King Fahd University of Petroleum and Mineral, 11(1), 43 – 47. Etuk, E. S., Akpabio, I. O. and Udoh E. M. (2003); Comparison of the Thermal properties of Clay Samples as Potential Walling Materials for Naturally Cooled Building Design. Journal of Environmental Sciences, 15(1), 65 – 68. Freedman, R. A., Young, H. D.(2006); Sears and Zemansky’s University Physics, India, Dorling Kindersley. George, N.J., Obianwu, V. I., Akpabio, G. T., & Obot, I. B. (2010); Comparison of Thermal Insulation Efficiency of Some Selected Materials Used as ceiling in Building Designs. Archieves of Applied Science Research, 2(3); 253 – 259. Retrieved fromhttp://scholarsresearchlibrary.com/archieve.html Halliday, D., Resnick, R., Walker, J. (2001); Fundamentals of Physics, 6th Edition, New York, John Wiley and Sons Inc. Nelkon, M. (1985); Principles of Physics, 8th Edition, London, Collins International. Okeke, P. N. and Anyakola, M. W. (1989); Senior Secondary Physics, Revised Edition, London, Macmillian Educational Ltd. Onyeaju, M. C., Osoralube, E., Chukwuocha, E.O., Ekuma, C. E., & Omasheye, G. A. J., (2012). Comparison of the Thermal properties of Asbestos and Polyvinylchloride (PVC) Ceiling sheets. Journal of Material Sciences and Applications, 3, 240 – 244. Retrieved from http://www.sciRp.org/journal/msa. doi.org/10.4236/msa.2012.34035 Suman, B. M., & Srivastava, R. K., (2009); Influence of Thermal Insulation on Conducting Heat Transfer through Roof Ceiling Construction. Journal of Scientific and Industrial Research 6(8). 248 – 251. Yong, P. L., Anyakoha, M. W. and Okeke, P. N. (2002); University Physics, Revised Edition. England, Wm.C. Brown Publishers.

More Articles from INTERNATIONAL JOURNAL OF ENGINEERING AND MODERN TECHNOLOGY