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Performance and testing of large‐size solar water heater cum solar cooker
Author(s) -
Nahar N. M.
Publication year - 1993
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440170108
Subject(s) - cooker , firewood , payback period , kerosene , environmental science , waste management , electricity , environmental engineering , engineering , electrical engineering , mechanical engineering , chemistry , organic chemistry , production (economics) , economics , macroeconomics
The performance of a novel device has been tested. The device can be used as a collector cum storage type solar water heater during the winter, and, with minor adjustments, it can be used as a hot‐box solar cooker. The device can provide hot water at 50–60°C in the evening, which can be maintained at 40–45°C until the following morning. It can also be used for cooking food for about 40 people. The efficiencies of the device as a solar water heater and as a solar cooker have been found to be 67.7% and 29.8%, respectively. The payback period varies between 1.64 to 5.90 years depending on the fuel it replaces. The payback periods are of increasing length with respect to the fuels firewood, coal, electricity, LPG and kerosene.