Research Article Volume 5 Issue 9

Vacuum Tube Solar Water Heater for Cooking Meal

Shyam S Nandwani*

Retired Professor, Universidad Nacional, Heredia, Costa Rica (Central America)

*Corresponding Author: Shyam S Nandwani, Retired Professor, Universidad Nacional, Heredia, Costa Rica (Central America).

Received: July 24, 2023; Published: August 14, 2023


Author has designed, studied, used at home and published for more than 40 years the performance of various hot box solar cookers, including hybrid and multipurpose solar ovens. The objective here is to study two vacuum solar water heating tubes, for heating air, water and for cooking meals and pasteurizing water etc., to see its thermal performance and make some comparison with conventional hot box solar oven. Air, water, meals temperature and solar intensity is measured. On sunny day, maximum air temperature reached to about 220 ⁰C and water temperature to about 96 ⁰C. Different vegetables, lentils and including pork pieces were cooked. In addition, for first time author used cheap, portable, battery operated smart camara and mobile phone to measure solar intensity and temperature remotely, even at coffee shop.

Keywords: Hot Box Solar Oven; Vacuum Tube Collector; Vacuum Tube Solar Oven; Smart Camara; Smart Phone; Remote Measurements


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  9. Shyam S Nandwani. “Hybrid Solar/Electric Oven with Smart Switch and Smart Phone”. Open Access Jr. Acta Scientific, Computer Sciences 4.8 (2022): 10-14.
  10. Shyam S Nandwani. “Practical Kit for promoting Solar Energy at Educational Centers”. Open Access Jr. Acta Scientific, Computer Sciences 11 (2022): 1-4.


Citation: Shyam S Nandwani. “Vacuum Tube Solar Water Heater for Cooking Meal". Acta Scientific Computer Sciences 5.9 (2023): 09-15.


Copyright: © 2023 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.


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