Inderscience Publishers

Investigation of effect of varying dead-state temperatures on energy and exergy efficiencies of a Raw Mill process in a cement plant

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Dead-state temperature directly affects the exergy efficiency of thermal systems. The main objectives of the present study are twofold, namely, to investigate the effects of varying dead-state temperatures on the energy and exergy analyses of a Raw Mill in a cement plant; to examine the sensitivity of the energy and exergy analyses results, calculated according to the varying dead-state temperatures. The exergy efficiency values ranged from 44.5% to 18.4% at varying dead-state temperature values between −18°C and 41°C. The sensitivity analyses results have indicated that varying dead-state temperatures have an effect on the exergy efficiency.

Keywords: dead-state temperatures, energy efficiency, exergy efficiency, raw mills, reference state, sensitivity, cement plants

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