Vol. 3, Issue 12, Part B (2017)

Abstract
Solar cooker with improved figures of merit is necessitated for relatively faster cooking in domestic sectors. In this connection, investigation, the solar cooker with double glazed toughened glass cover, nano -sized graphite and manganese oxide coated cooking tray and PUF insulator was designed. It was developed and thermally analyzed. Its figures of merit were estimated to adhering BIS specifications. In the case of testing of components of solar cookers the double glazed toughened glass cover was tested and its transmittance was found to be 72%. The XRD analysis on the coating of the cooking tray was carried out and crystallite size was found to be 57 nm. The PUF insulation was also tested and its resistance was found to be 0.92w/m². As far as testing of solar cooker was concerned, the figure of merit in no load condition was found to be 0.11 and the figure of merit in load condition was found to be 0.71. As the developed cooker had enhanced figures of merit, it could be concluded that solar cooker with double glazed cover, nano-structured tray and PUF insulation would be utilized for domestic applications.