Mathematical model development and simulation of heat pump fruit dryer

Journal Article · Sat Jan 01 00:00:00 EST 2000 · Drying Technology

DOI:https://doi.org/10.1080/07373930008917718· OSTI ID:20082162

Achariyaviriya, S; Soponronnarit, S; Terdyothin, A

A mathematical model of a heat pump fruit dryer was developed to study the performance of heat pump dryers. Using the moisture content of papaya glace drying, the refrigerant temperature at the evaporator and condenser and the performance, was verified. It was found that the simulated results using closed loop heat pump dryer were close to the experimental results. The criteria for evaluating the performance were specific moisture extraction rate and drying rate. The results showed that ambient conditions affected significantly on the performance of the open loop dryer and the partially closed loop dryer. Also, the fraction of evaporator bypass air affected markedly the performance of all heat pump dryers. In addition, it was found that specific air flow rate and drying air temperature affected significantly the performance of all heat pump dryers.

• Research Organization: King Mongkut's Univ. of Technology Thonburi, Bangkok (TH)
• OSTI ID: 20082162
• Journal Information: Drying Technology, Vol. 18, Issue 1-2; Other Information: PBD: Jan 2000; ISSN 0737-3937
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
FRUITS
DRYING
DRYERS
HEAT PUMPS
DESIGN
MATHEMATICAL MODELS
PERFORMANCE
AIR FLOW
FLOW RATE
TEMPERATURE DEPENDENCE