Author(s):

Sushant, Yadvika, Arun Kumar Attkan and Naveen

Abstract: Present investigation was carried out on performance evaluation of four different types of low cost improved cook stoves at four different biomass fuels. Boiling time, burning rate, thermal efficiency, power output rate and fuel consumption were the main performance indicators that were assessed using water boiling test (WBT). The experimental results were analysed statistically using Statistical Analysis System (SAS). The mean values obtained from each set were compared using tukey multiple comparison test based on a complete randomized design (at 0.05 confidence level). Results revealed that cook stoves and fuels significantly affected the performance indicators and their combined impact is also meaningful (p ≤ 0.05). It was observed that fuel consumption of SPRERI side feeding cook stove was maximum (1882±8.5 kg), burning rate (3.61±0.14 kgh^-1) for fuel wood chips, minimum boiling time (12±0.24 minute) with fuel wood, thermal efficiency (24±0.88%) with dung cake. Greenway Smart model takes the maximum boiling time (48±1.25 minute) with fuel wood chips, it shows good thermal efficiency (26±0.26%) with cattle dung cakes and having low burning rate (0.86±0.02 kgh^-1) with wood chips. Greenway Jumbo model had lower fuel consumption (634±13.49 kg), highest thermal efficiency (26±0.55%) among all the cook stoves and had lower burning rate (0.95±0.01 kgh^-1) with wood chips. From the statistical assessment, SPRERI side feeding cook stoves found to be efficient as mean boiling time was less and had higher mean power output rate followed by Greenway Smart model with highest mean thermal efficiency and lower fuel consumption.

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