Construction of a Finned Heat Radiation Reflector for Improved Efficiency of Liquefied Petroleum Gas Stoves

The objective in this study was to construct a finned heat radiation reflector using a cut cone-shaped stainless steel plate. In addition, its efficiency was examined by the water boiling test by varying the fin rows and angles. Measurements were performed on reflectors with one, two and three rows of fins, which were compared with conventional stoves with and finless reflectors. Furthermore, fin angles of 5°, 10°, 15°, 20° and 25° were evaluated by the variation in the fin rows, and the most efficient configuration was investigated. Results revealed that finned reflectors increase the efficiency of liquefied petroleum gas stoves. The highest efficiency (60%) was obtained for the reflector with three finned rows and a fin angle of 10°. Compared with those of conventional reflectors and reflectors without fins, 7.87% and 4.47% increase in the efficiency was observed, respectively. Furthermore, the use of finned reflectors enhanced the area of complete combustion.