Heat Storage for Cooking: A Discussion on Requirements and Concepts

Methodologies for direct and indirect solar energy for cooking are discussed. Clean and renewable energy solutions for cooking are, in particular, in demand in the sub-Saharan region where fuel wood is the main source of energy for a large part of the population, in particular in off-grid communitie...

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Bibliographic Details
Published in:Energies (Basel) 2023-09, Vol.16 (18), p.6623
Main Author: Nydal, Ole Jørgen
Format: Article
Language:English
Subjects:
Alternative energy
Analysis
Batteries
Biomass
Cooking
Energy industry
Energy storage
Heat storage
Heat transfer
Heating
Power supply
PV cooking
PV to heat
Radiation
solar cooking
Solar energy
solar heat storage
solar thermal
Thermal energy
Water temperature
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Summary:Methodologies for direct and indirect solar energy for cooking are discussed. Clean and renewable energy solutions for cooking are, in particular, in demand in the sub-Saharan region where fuel wood is the main source of energy for a large part of the population, in particular in off-grid communities. As solar radiation is intermittent, energy storage solutions are required to provide cooking power during off-sun hours. Electrical batteries can be feasible for low-power applications (lights, electronics, and chargers) but tend to be costly and short-lived solutions for high-power cooking requirements. Heat battery concepts are discussed here together with prototype examples of latent and sensible heat storage solutions which have been laboratory tested for cooking and frying. Simplified computational comparisons between latent and sensible heat storage options show that oil and rock bed sensible heat systems, with a natural convection heat transfer, can be designed to provide variable cooking power levels. Oversized sensible heat storage systems can approach the near constant temperature and heat storage properties of a latent heat system. Latent heat storage systems can be more suitable for frying than for cooking applications.
ISSN:1996-1073
1996-1073
DOI:10.3390/en16186623