Thermal properties of insulating material prepared from coal fly ash and asphalt. | [Mehran University Research Journal of Engineering and Technology • 2009]

Author(s):

1. Inamullah Bhatti: Department of Chemical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

2. Khadija Qureshi: Department of Chemical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

3. Abdul Rehman Memon: Department of Chemical Engineering, Mehran University of Engineering & Technology, Jamshoro, Pakistan

Abstract:

Coal power plants are producing ash in enormous quantity as fly ash and bottom ash, whenever coal is combusted. Lakkra coal Power Plant produces waste of solid fossil fuel and lime stone. Due to the silica, alumina and iron oxide it is good to be used in cement preparation and land filling. In this study a new application is identified, which is more useful and beneficial. This paper presents the results carried out investigating the insulating material prepared from the coal fly ash and asphalt by using the simple unit operations of sizing the materials. At melting temperature of the asphalt sieved fly ash is mixed with it to produce complex heavy sludge. Two samples of different ratios from the rapidly solidifying insulating materials were prepared in the molding press at 200 psi pressure. Arm-field heat conduction apparatus HT-1 was applied to test its thermal properties. Thermal properties of the material were observed to be heat resistant with mean thermal conductivity at 10 watt 0.8949 w/m-K for Sample No. 1 and 0.91886 w/m-K for Sample No.2; whereas the mean thermal resistances calculated were 30.4165m2-K/w and 29.6234m2-K/w, respectively. The results obtained during this study are satisfactory and the authors hope that the insulation material prepared would be used in Pakistan in building constructions for heat resistance and insulation purposes.

Page(s): 343-348

DOI: DOI not available

Published: Journal: Mehran University Research Journal of Engineering and Technology, Volume: 28, Issue: 3, Year: 2009

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