Abstract
A study was conducted for the estimation of energy consumption in eight readily defined unit operations of small-scale cashew nut processing in India. The nine industries were stratified into 60, 30 and 15 kg/batch capacity of steam cooker. Series of equations were developed to easily compute requirements of solar, electricity, fuel and manual energy for each of the unit operations. The results show that the total energy consumption per 1000 kg of raw cashew nuts in three categories of industries was 5321.43, 5540.14 and 6061.34 MJ, respectively, when the steaming operation was carried out by using electricity. The three identified energy-intensive operations in cashew nut processing were cashew nut drying, cashew nut steaming and drying of cashew kernels, altogether accounting for over 90% of the total energy consumption. The developed equations are useful tools for carrying out budgeting, forecasting energy requirements and planning plant expansion.
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