Benha University

Mohamed Elsayed Abdelaty Elsayed Ahmed

Lecturer

Faculty of Engineering, Shoubra Mechanical Engineering

Energy, exergy, environmental, and economic (4E) analysis of an indirect solar cooker

Case Studies in Thermal Engineering • 2025
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Publication Information
Authors Tao Zhang, Mahmoud A Abdelhamid, Mohamed EAE Ahmed, Fatma Shaaban, Sarah O Makram, Zhao Zhang, Tarek Kh Abdelkader
Keywords Indirect solar cooker; Evacuated tubes collector; Box solar cooker; Energy and exergy analysis
Journal Case Studies in Thermal Engineering
Publisher Elsevier
Volume 71
Issue Not Available
Pages 106249
publication.type International
Paper Link Open Link
Supplementary Materials Not Available
Abstract
The solar cooker is considered an effective tool for harnessing solar energy for cooking purposes, significantly promoting environmental sustainability. This study aims to introduce a novel design for an indirect solar cooker by integrating an evacuated tube collector with a box-type cooker, contributing to achieving sustainable development goals. The performance of the proposed system is evaluated through energy, exergy, environmental, and economic analyses. Practical cooking tests designed to meet the needs of a family of two adults and four children highlight the effectiveness of the proposed solar cooker. The overall thermal efficiency of the box solar cooker (BSC) and the proposed solar cooker (PSC) are 26.8 % and 36.7 %, respectively, with corresponding exergy efficiencies of 1.9 % and 7.4 %. Additionally, the PSC is capable of preparing approximately 990 meals per year. For a lifespan of 15 years, the energy and economic payback period is 5.7 and 1.8 years, respectively; PSC mitigates CO2 emission by 3.412 tons/year. PSC showed a good economic indicator since the internal rate of return is 54 %, the benefit-cost ratio is 1.23, and the net present value of profit is 161.25$. Moreover, the levelized cost of the cooked meal equals 0.105 $/Ml, and the levelized cost of heat equals 0.151 $/kWh.
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