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https://hdl.handle.net/11499/6569
Title: | An exergetic performance assessment of three different food driers | Authors: | Hepbasli, A. Erbay, Z. Çolak, Neslihan Hancioglu, E. Icier, F. |
Keywords: | Drying Exergy analysis Fluid bed drier Heat pump drier Performance evaluation Tray drier Air temperature Air velocities Compressor assembly Drying air Drying process Exergetic efficiency Exergetic performance Exergy Analysis Exergy loss Flow diagram Fluid-beds Heat pumps Main component Quantitative information System components System efficiency Atmospheric temperature Curing Dewatering Exergy Fluidization Fluids Heat pump systems Pumps Driers (materials) |
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. | URI: | https://hdl.handle.net/11499/6569 https://doi.org/10.1243/09576509JPE802 |
ISSN: | 0957-6509 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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