Shyam S Nandwani*

Retired Professor, Researcher, Promotor and User of Solar Energy, Costa Rica

*Corresponding Author: Shyam S Nandwani, Retired Professor, Researcher, Promotor and User of Solar Energy, Costa Rica. E mail: snandwan@yahoo.com

Received: June 01, 2026; Published: July 13, 2026

Abstract

In addition to promoting the use of Solar ovens for warming lunch at Educational Centers and offices etc. another option is pro- vided like the use of some appropriate Thermos bottles. Have observed different types of thermoses to maintain the meal hot from 2 to 25 hours, from the time you have left home. Fortunately, some thermoses are Microwaveable, and some can be used in solar oven too, with additional benefits. Only five thermoses are studied to see their effectiveness by observing the fall in temperature after 5 hours. Also heat loss coefficients and calculated thermal conductivity are mentioned.

Keywords: Heating Meal; Solar Energy; Solar Ovens; Thermos Bottles; Heat Loss Coefficient

References

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Citation

Citation: Shyam S Nandwani. “Study of Thermoses for Maintaining Food Hot at Educational Centers and Offices". Acta Scientific Applied Physics 6.1 (2026): 01-07.

Copyright

Copyright: © 2026 Shyam S Nandwani. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.