Research Article
Design and Manufacturing of an Institutional Mirt Stove with Waste Heat Recovery System
@INPROCEEDINGS{10.1007/978-3-030-93712-6_28, author={Tesfaye Wondatir Mihretie and Nigusse Mulugeta}, title={Design and Manufacturing of an Institutional Mirt Stove with Waste Heat Recovery System}, proceedings={Advances of Science and Technology. 9th EAI International Conference, ICAST 2021, Hybrid Event, Bahir Dar, Ethiopia, August 27--29, 2021, Proceedings, Part II}, proceedings_a={ICAST PART 2}, year={2022}, month={1}, keywords={Improved institutional mirt stove Waste heat recovery system Specific fuel consumption Total cooking time}, doi={10.1007/978-3-030-93712-6_28} }- Tesfaye Wondatir Mihretie
Nigusse Mulugeta
Year: 2022
Design and Manufacturing of an Institutional Mirt Stove with Waste Heat Recovery System
ICAST PART 2
Springer
DOI: 10.1007/978-3-030-93712-6_28
Abstract
In the present study the performance of an institutional mirt stove with waste heat recovery system was designed and investigated. The waste heat recovery system is designed to utilize the heat of waste gases of institutional mirt stove as a source of energy for the purpose of injera baking on the secondary mitad. Beside to this main design improvement, adding fuel supporting structure like grates to allow ash falls through it and air to be entered under-neath the fuel and ash collection boxes and ash removal openings below each grate were provided. The performance of the improved stove was compared with that of the existing institutional mirt stove through controlled cooking test method. The result shows that the improved stove saved up to 16% fuel wood and 14% cooking time as compared to the existing institutional mirt stove. During the test a temperature of about 216.3 ℃ on the surface of a secondary mitad is achieved and injera is baked on this surface. Finally, the techno-economic analysis shows that the improved institutional mirt stove with waste heat recovery for injera baking system is economically feasible.
