Drying performance of a tumbler dryer with condenser |
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| Authors: | Kyu Sun Lee Byoungyull Yang Sang Yeon Pyo Hyung Gyoon Kim Dong Hyun Lee Sang Done Kim |
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| Affiliation: | (1) Department of Chemical Engineering, Sungkyunkwan University, 440-746 Suwon, Korea;(2) Home Solution Lab., Samsung Electronics Co., 442-742 Suwon, Korea;(3) Department of Chemical and Biomolecular Engineering and Energy & Environment Research Center, Korea Advanced Institute of Science and Technology, 305-701 Daejeon, Korea |
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| Abstract: | The effects of flow rates of hot air and cooling water on drying percentage and energy efficiency of cotton lint in a cylindrical
type drum tumbler dryer (0.54m-ID×0.34m-high) have been determined. Drying of the lint is mainly affected by flow rate of
hot air, which is a function of the diameter ratio (DM/DF) of motor and fan pulley and motor capacity. During the drying process in the tumbler dryer, temperatures and humidity before
and after were measured to determine the drying characteristics. The volumetric flow rate of hot air increases with increasing
the diameter ratio of the motor and fan pulley, whereas the volumetric flow rate of hot air decreases with an increase in
the mass flow rate of the cooling water through the condenser. The energy consumed by the motor relied more on the diameter
ratio of the motor and fan pulley as opposed to the mass flow rate of cooling water. Despite the increase in the drying percentage
with increasing the diameter ratio of the motor and fan pulley and the mass flow rate of the cooling water, the energy efficiency
decreased. |
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| Keywords: | Cotton Lint Tumbler Dryer Drying Percentage Energy Efficient |
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