Evaluation of the Effect of Constituents on Insulation Quality of Selected Biomass Composites

Main Article Content

E. O. Olutomilola
T. I. Ogedengbe

Abstract

This study evaluated the effect of constituents on thermal conductivity of selected biomass materials namely sawdust, rice husk, coconut husk and palm kernel husk by using Lees' Conductivity Apparatus. The materials were collected, sun-dried, grinded and sieved. This paper also presents the hydraulic-press mould that was developed for moulding the materials into thin discs, called working samples, suitable for use in the Lees' Conductivity Apparatus. The thermal conductivity of these selected biomass composites were determined at temperatures between 35°C and 50°C. The results obtained showed that sample SC (which is a combination of sawdust and coconut husk) has the lowest thermal conductivity value of 0.0918 W/moC and sample P (which is palm kernel husk) has the highest thermal conductivity value, 0.1761 W/moC. The effect of change in constituents on the thermal conductivity of the biomass materials was examined using paired t-test. It was observed that the influence of the variation in the constituents of the working samples was statistically signficant at 80% confidence level. Hence, the insulation quality/ability of the biomass composites can be increased or reduced by varying their constituents.

Article Details

Section
Articles

References

Abdulkareem , S., Ogunmodede S., Aweda, J. 0., Abdulrahim A. T., Ajiboye T. K., Ahmed , I. I. and Adebisi , J . A. (2016): Investigation of Thermal Insulation Properties of Biomass Composites . International Journal of Technology (IJTech), Volume 6, Pp. 989-999 .

Dixit, N., Mantri, R., Aranke, 0. and Godbole, A.(2016): Effect of Thermal Insulation on Thermal Efficiency of Portable Solid Biomass Cookstove. International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET), Volume 5, Issue 4, Pp.4665- 4672.

Giglio, F. (2013) : The Use of Materials from Biomass as Construction Materials . Open Journal of Civil Engine ering , Volume 3, Pp.82-84.

Gut tman, I.; Wilks, S.S. and Hunter, J.S. (1971): Introductory Engineering Statistics, 2nd Edition. John Wiley & Sons, Inc., New York.

Hogg, R.V. and Ledolter, J. (1987): Engineering Statistics. Mcmillan Publishing Company, New York.

Kothandaraman , C. P. (2006): Fundamentals of heat and mass transfer, Third Edition. New Age International (P) Ltd. Publishers , Daryaganj, New Delhi, Pp.3, 4.

Lawson, J. and Erjavec , J. (2001) : Modern Statistics for Engineering and Quality Improvement. Duxbury, Thomson Learning Academic Resource Center, USA.

LCA (2002): Lees' Disc Conductivity Apparatus (Electrical Method) LL44-590 LS . 112 2/7302, Griffin & George Ltd., Wembley, Middlesex, UK. Pp: 2-4.

Lipson, C. and Sheth, N.J. (1973): Statistical Design of Engineering Experiments. McGraw-Hill Book Company , New York , USA.

Liu, L. F., Li, H. Q., Lazzaretto, A., Manente, G., Tong, C. Y., Liu, Q. B. and Li, N. P. (2017): The Development History and Prospects of Biomass-based Insulation Materials for Buildings. Renewable and Sustainable Energy Reviews , Volume 69, Pp. 912- 932.

Luo, Q., Peng, W. and Zhang, P. (2011) : Application of Biomass Materials for Heat Insulation in Rural Buildings. Advanced Materials Research Vols . 236-238, Pp. 510- 513.

Miller, I. and Freund, J.E. (1987): Probability and Statistics for Engineers. Practice-Hall of lndia Private Limited, New Delhi.

Ogedengbe, T. I., Fatomilol a, E. 0. and Bello, 0. R. (2013): Evaluation of Thermal Conductivity of Some Selected Biomass Composites. Research Journal in Engineering and Applied Sciences, 2(4): 326-335.

Oluyamo, S. S. and Bello, 0. R. (2014): Particle Sizes and Thermal Insulation Properties of Some Selected Wood Materials for Solar Device Applications . IOSR Journal of Applied Physics (IOSR-JAP), Volume 6, Issue 2, Pp. 54- 58.

Panyakaew, S. and Folios, S. (2008): Agricultural Waste Materials as Thermal Insulation for Dwellings in Thailand: Preliminary Results. 25th Conference on Passive and Low Energy Architecture (PLEA), Dublin, 22nd to 24th October 2008.