1. An Exergetic Performance Assessment Of Three Different Food Driers
- Author
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Neslihan Colak, Ebru Hancioglu, Arif Hepbasli, Filiz Icier, Zafer Erbay, TR115770, Hancıoğlu, Ebru, and Izmir Institute of Technology. Geothermal Energy Research and Application Center (IZTECH JEOMER)
- Subjects
Exergy ,Engineering ,Dewatering ,evaluation ,tray drier ,law.invention ,Atmospheric temperature ,law ,Curing ,Flow diagram ,Quantitative information ,Fluidization ,Fluids ,Pulp and paper industry ,Drying process ,Drying air ,Tray ,Main component ,Air temperature ,drying ,exergy analysis ,fluid bed drier ,heat pump drier ,performance ,Performance evaluation ,Compressor assembly ,Heat pump ,Air velocity ,Exergetic performance ,Heat pumps ,Heat pump drier ,Heat pump systems ,Tray drier ,Fluid bed drier ,Energy Engineering and Power Technology ,Thermodynamics ,System efficiency ,Fluid-beds ,Pumps ,Air velocities ,System components ,Drying ,business.industry ,Mechanical Engineering ,Exergy Analysis ,Exergy analysis ,Heat pump dryer ,Fluidized bed ,Exergy loss ,Driers (materials) ,business ,Exergetic efficiency - Abstract
In this study, plum slices were dried in three different driers (tray, fluid bed, and heat pump (HP) driers). Drying experiments were carried out at an air temperature range of 45-55 °C with an air velocity of 1.5 m/s. The performance of the driers along with their main components was evaluated and compared by using the exergy analysis method. The most important component for improving the system efficiency was determined to be the fan-heater combination for both the tray and fluid bed driers, and the motor-compressor assembly for the HP drier. The exergy loss and flow diagram (the so-called Grassmann diagram) of the driers was also presented to give quantitative information regarding the proportion of the exergy input dissipated in the various system components. Effects of the drying air temperature on the performance of the drying process were discussed. The highest exergetic efficiency values were obtained to range from 72.72 to 75.66 per cent for the HP drier, followed by the tray and fluid bed driers varying between 37.94 and 39.46 per cent, and between 22.83 and 24.07 per cent, respectively., TÜBİTAK project no. 106M482
- Published
- 2010