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

Abstract

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

References

1. Shyam S Nandwani. Sunny Visions- Getting a Charge from Old Sun. The Tico Times, Central American English News Paper, San Jose, Costa Rica, May 4, (1979): 21. (Interview with author on Solar Meal Heating).
2. Shyam S Nandwani. “Experimental and Theoretical analysis of simple solar oven in the climate of Costa Rica‑ Solar and Wind Technology”. Pergamon Press2 (1988): 159‑170.
3. Shyam S Nandwani and Book Cocina. Horno Solar, Hagala usted mismo (Do it your self), Editorial Universidad Nacional, Costa Rica. 1993 and 2004. pp. 100.
4. Shyam S Nandwani. “Solar Cookers‑Cheap technology with high ecological benefits”. Ecological Economics, Holland 17 (1996):a 73-81.
5. Shyam S Nandwani., et al. “Experimental Study of Multipurpose Solar Hot Box at Freiburg, Germany”. Renewable Energy England, (Pergamon Press) 12 (1997): 1-20.
6. Shyam S Nandwani. “Solar Cookers and Dryers to conserve Human and Planet Health”. invited article, Published in Encyclopedia of Sustainability Science and Technology, Robert A. Meyers (Ed.) Springer Verlag (2012): 9486-9509.
7. Shyam S Nandwani. “Solar Ovens – for Cooking food and cooling the earth, Appropriate Technology”. Research Information Ltd. England 48.2 (2021): 48-49.
8. Shyam S Nandwani. “Use of Solar Energy for Heating Meal at Educational Centers”. Open Access Journal, International Journal of Engineering Technologies and Management Research2 (2022).
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

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

Copyright

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.