Heat-pump-assisted dryer part 1: mathematical model

Pendyala, V. R. ; Devotta, S. ; Patwardhan, V. S. (1990) Heat-pump-assisted dryer part 1: mathematical model International Journal of Energy Research, 14 (5). pp. 479-492. ISSN 0363-907X

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/er.4440...

Related URL: http://dx.doi.org/10.1002/er.4440140502


A mathematical model for an integrated heat-pump-assisted dryer has been developed. The dryer has been modelled considering the heat transfer and simultaneous heat and mass transfer zones. The heat-pump heat exchangers have been modelled by writing the enthalpy balance for differential lengths considering the various zones on the air and working-fluid sides. The compressor has been described by the polytropic compression equation. The model has been used for simulating an existing system using R11 to study the effect of approach velocity of air to the evaporator and of the suction superheat on the specific energy consumption of the heat pump assisted dryer.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons, Inc.
Keywords:Heat pumps;Drying; Mathematical Modelling
ID Code:37980
Deposited On:06 Jul 2011 10:10
Last Modified:06 Jul 2011 10:10

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