Thermodynamic evaluation of a rice husk fired integrated steam and hot air generation unit for rice parboiling
2017
Kwofie, E.M. | Ngadi, M. | Sotocinal, S.
This paper presents a simplified energy improvement system using agricultural waste for local rice processing. An integrated steam and hot air production unit using rice husk energy was evaluated thermodynamically. Besides characteristics of steam and hot air, temperature effectiveness of the fluid streams, energy and exergy flow within system components were also studied. Effect of input operating parameters on steam production and drying air temperature together with their correlation have been shown. Overall system energy and exergy efficiencies were found to be 47.81% and 10.93%, respectively. Although, the combustor showed the highest temperature, energy and exergy efficiencies, it was the main source of exergy destruction contributing more than 60%.
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