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vol. 4, nr. 3 (2004)
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Heat balance of a fruit drier
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Helena Lis, Wojciech Kropornicki, Małgorzata Magdalena Lis
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Faculty of Agricultural Engineering, University of Agriculture, ul. Akademicka 13, 20-950 Lublin |
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vol. 4 (2004), nr. 3,
pp. 737-746
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abstract:
The heat balance was drawn up of the fruit drier when apple and plum drying in a continuous cycle, as well as with the use of night breaks. Thermal efficiency of a steam boiler with wood combustion was 75.5%, and that of an air steam stove only 18.3-22.4% of heating steam enthalpy, and only 14-17% for the whole heating unit. The use of night breaks in apple drying shortened the effective drying time by 21% (equal to 5 hours), as well as allowing the saving of significant amounts of fuel and electric energy in comparison with drying without the breaks.
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keywords:
fruit drier, continuous cycle, discontinuous cycle, heat balance
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original in:
Polish
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