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A review of solar, electric and hybrid cookstoves

Kashyap, SR and Pramanik, S and Ravikrishna, RV (2023) A review of solar, electric and hybrid cookstoves. In: Renewable and Sustainable Energy Reviews, 188 .

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Official URL: https://doi.org/10.1016/j.rser.2023.113787


The research on clean and energy-efficient cooking technologies has focused on solar and electric cookstoves. Recent studies have proposed solar-biomass and solar-electric hybrid cookstoves towards developing renewable and sustainable cooking technologies. However, only solar cookstoves have been reviewed extensively, owing to the vast literature. This article reviews electric and solar-hybrid cookstoves for the first time and summarises the recent developments in solar cookstoves. Though solar cookstoves offer clean and cost-free operation, they depend on sunlight availability and usually have longer cooking durations due to low operating power. Direct solar cookstoves require cooking outdoors, whereas indirect cookstoves enable indoor cooking using a heat transfer fluid. Also, thermal energy storage facilitates night cooking. Electric cookstoves function based on induction, resistance or radiative heating principles. However, off-grid and rural areas lack a continuous supply of electricity. Hybrid cookstoves combine solar energy with fuels and electricity to achieve renewability. Total system efficiency, which includes the efficiencies of energy production, transportation and end-use, is a better indicator of the cooking life cycle. Electric cooking depicts low total system efficiency despite having the highest end-use efficiency (about 80%) due to low efficiency of electricity production and transportation. In contrast, the total system efficiency of solar cooking equals its end-use efficiency. Recent advancements in solar cookstoves have shown efficiencies up to 35–40% with direct and 63–69% with indirect solar cookstoves. The present review also identifies directions for future research. Specifically, the gaps in hybrid cookstove literature call for future research to develop sustainable cooking technologies. © 2023 Elsevier Ltd

Item Type: Journal Article
Publication: Renewable and Sustainable Energy Reviews
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Electric energy storage; Heat storage; Heat transfer; Life cycle; Solar energy, Cooking technology; Electric; End-uses; Energy efficient; Figure of merit; Hybrid; Low operating power; Solar cookstove; System efficiency; Use efficiency, Energy efficiency
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 01 Dec 2023 09:44
Last Modified: 01 Dec 2023 09:44
URI: https://eprints.iisc.ac.in/id/eprint/83362

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