ENERGY AND EXERGY ANALYSIS OF A NOVEL THREE-STAGE HEAT PUMP DRYING SYSTEM

Year 2019, Volume: 2 Issue: 1, 59 - 72, 31.07.2019

Recep Ekiciler

Abstract

A
three-stage heat pump dryer is analyzed and assessed in terms of energy and
exergy performances using different refrigerants such as R134-a, R12, and R22.
Many parametric optimization studies are applied for the corresponding system
in order to specify the best performing system and environmental parameters.
R12 shows the highest energy and exergy efficiencies while requirement of
compressor work is low when R12 is used as a refrigerant. The system is not
much influenced from the environmental conditions. In addition, the
overall system energy and exergy efficiencies are 44.23% and 55.7% for R134-a,
respectively.

Keywords

Three-stage heat pump dryer, exergy efficiency, destruction, energy, specific humidity rate

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