Porous Maize Stalk Cellulose Fiber-Reinforced Geopolymer Composites for Heat Insulation at the Bottom Side of a Local Electric Stove

Addisu Workiye; Eyassu Woldesenbet

doi:10.46604/peti.2022.8589

Authors

Addisu Workiye Department of Mechanical Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Ethiopia
Eyassu Woldesenbet Department of Mechanical Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Ethiopia

DOI:

https://doi.org/10.46604/peti.2022.8589

Keywords:

geopolymer, kaolin, insulation, composites, organic oil

Abstract

The objective of this work is to develop porous maize stalk cellulose fiber-reinforced geopolymer composites for heat insulation on the bottom side of an electric stove using the solid impregnation method. Heat loss measurement is conducted using an infrared thermometer. Moreover, the temperature effect on the composites is investigated. The maize stalk cellulose fibers are very essential to anticipate the cracking phenomenon generated by high temperatures. The degradation of the fibers causes the formation of small cavities in the matrix, and thus leads to high temperatures. The experimental result shows that it takes 22 minutes to boil water using the proposed electric stove, whereas it takes 29 minutes using the existing local electric stove. By using the proposed electric stove to boil water, 113,793,148.104 KWh of energy per year at the national level can be saved.

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