Energy and exergy analysis of industrial fluidized bed drying of paddy

Md. Sazzat Hossain Sarker, Mohd Nordin Ibrahim, Norashikin Abdul Aziz and Mohd Salleh Punan

Energy, 2015, vol. 84, issue C, 131-138

Abstract: This paper presents energy and exergy analysis of industrial fluidized bed paddy drying. The maximum design capacity of the dryer was 22 t/h. Existing energy and exergy models developed applying the First and Second law of Thermodynamics are employed to estimate the amounts of energy used, the ratios of energy utilization, magnitude of exergy losses and exergy efficiencies during the drying process. The analysis shows that energy usage and (EUR) energy utilization ratios vary between 38.91 kJ/s to 132.00 kJ/s and 5.24–13.92 %, respectively while exergy efficiency vary from 46.99 to 58.14%. A simple exergy balance reveals that only 31.18–37.01 % exergy are utilized for drying of paddy and the remaining large amount of exergy are wasted. Exergy can be increased through providing sufficient insulation on dryer body and recycling the exhaust air which need to be studied further for investigating the economic feasibility.

Keywords: Energy and exergy analysis; Industrial fluidized bed dryer; Paddy drying (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (23)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:84:y:2015:i:c:p:131-138

DOI: 10.1016/j.energy.2015.02.064

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