An empirical model for a heat pump dehumidifier drier

✍ Scribed by C. G. Carrington; P. Bannister

• Book ID: 102659999
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 914 KB
• Volume: 20
• Category: Article
• ISSN: 0363-907X
• DOI: 10.1002/(sici)1099-114x(199610)20:10<853::aid-er200>3.0.co;2-b

✦ Synopsis

Data obtained from laboratory measurements on a dehumidifier drier using R134a in a scroll compressor are analysed to establish empirical sub-models for the principal drier components. A model for the dehumidifier system is set up by coupling the sub-models using energy and mass balances. The performance data obtained using the system model is in good agreement with the measured data obtained with four system configurations under a wide range of operating conditions. The model is used to demonstrate how the performance for the dehumidifier relates to that for the coupled kiln-dehumidifier system. By resizing the heat exchangers it is shown that the energy efficiency of the prototype system can be increased significantly, the dehumidifier specific moisture extraction rate approaching 10 kg kWh-' at high humidity.