𝔖 Bobbio Scriptorium
✦   LIBER   ✦

HEAT PUMP DRYER PART 2: RESULTS OF THE SIMULATION

✍ Scribed by S. Prasertsan; P. Saen-Saby; P. Ngamsritrakul; G. Prateepchaikul

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
458 KB
Volume
21
Category
Article
ISSN
0363-907X

No coin nor oath required. For personal study only.

✦ Synopsis

Heat pump dryer characteristics of four configurations, two open and two closed systems, are presented. The results are based on the simulation models developed in Part 1. Emphasis is given to the effects of ambient conditions, recirculating air ratio and evaporator bypass air ratio on the system performance. The criteria for evaluating the system performance are the specific moisture extraction rate (SMER), the moisture extraction rate (MER) and the coefficient of performance (COP). It was found that the ambient conditions and dryer efficiency play an important role in the system behaviour. Optimum performance achieved for one ambient condition cannot be assumed optimum for the others. The recirculating air ratio substantially affects the system performance while the evaporator bypass air ratio shows insignificant effect.

πŸ“œ SIMILAR VOLUMES

Heat pump dryer Part 1: Simulation of th
Heat pump dryer Part 1: Simulation of the models
✍ S. Prasertsan; P. Saen-Saby; P. Ngamsritrakul; G. Prateepchaikul πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 583 KB

Heat pump dryer is a complex system because of the interaction of heat and mass transfer of the working fluids. Since the system cannot be completely close, ambient conditions (temperature and humidity) influence the performance of the system. To investigate the performance of the heat pump dryer th

Heat pump dryer Part 3: experimental ver
Heat pump dryer Part 3: experimental verification of the simulation
✍ S. Prasertsan; P. Saen-saby; P. Ngamsritrakul; G. Prateepchaikul πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 295 KB

Heat pump dryer (HPD) performance described by computer simulation results in Parts 1 and 2 of this series of papers is here verified by experiments. An HPD designed to be operated in four configurations-two open systems and two partially closed systems-has been built. The variables in the experimen

Investigation of a combined solar–heat p
Investigation of a combined solar–heat pump system for residential heating. Part 2: simulation results
✍ KamiΜ‡l Kaygusuz πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 136 KB πŸ‘ 2 views

In this study, a mathematical model of a solar-assisted heat pump system with latent heat energy storage for residential heating in Turkey was developed. The model consists of dynamic and heat transfer relations concerning the fundamental equipment in the system such as solar collector, latent therm

Performance study of a heat pump dryer s
Performance study of a heat pump dryer system for specialty cropsβ€”Part 1: Development of a simulation model
✍ Phani K. Adapa; Greg J. Schoenau; Shahab Sokhansanj πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 189 KB πŸ‘ 1 views

This research is concerned with the technology of heat pump assisted drying of specialty crops. A simplified procedure for modelling the performance of a low temperature heat pump dryer was developed. The system modelled consists of a vapour compression heat pump coupled to a continuous cross flow b

Performance study of a heat pump dryer s
Performance study of a heat pump dryer system for specialty cropsβ€”Part 2: Model verification
✍ Phani K. Adapa; Greg J. Schoenau; Shahab Sokhansanj πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 330 KB πŸ‘ 1 views

The experimental and predicted performance data of a heat pump dryer system is reported. Chopped alfalfa was dried in a cabinet dryer in batches and also by emulating continuous bed drying using two heat pumps operating in parallel. Results showed that alfalfa was dried from an initial moisture cont