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ISBN : 978-1-56700-478-6

Proceedings of the 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2017)
2017, December 27-30 , BITS Pilani, Hyderabad, India


Get access DOI: 10.1615/IHMTC-2017.220
pages 155-159


In this paper, a comparative study on energy requirement in conventional LPG cooking stove and self - aspirated LPG cooking stove with porous radiant burner (SAPRB) developed by Mishra et al. [1] is presented. Employing water boiling test (WBT) as described in BIS 4246:2002, the thermal efficiency of SAPRB was found to be in the range of 71-75% and CO and NOx emissions were in the range of 30-140 ppm and 0.2-3.5 ppm, respectively. Although from WBT, the newly developed SAPRB burner is proved to be more efficient than the conventional one, it is necessary to estimate the amount of energy consumption of SAPRB for various food items. The actual energy required for cooking depends on several factors namely fuel used, stove efficiency, dish ingredients, cooking methods, etc. This study involves the estimation of total energy required for the preparation of typical food items, based on average daily food intake as reported in National Sample Survey [2]. In order to do a comparative study, the dishes were prepared in both the stoves (SAPRB and conventional stove) at the same time. The fuel and time required for cooking were recorded individually for all the items. Due to higher thermal efficiency [1], the newly developed SAPRB is found to save both fuel and time as compared to its counterpart. On daily basis, SAPRB resulted in average saving of 52 min cooking time and 31.20 % fuel consumption. A considerable percentage reduction in the emissions of CO (84.75%) and NOx (91.47%) has been also observed from SAPRB.
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