ALTERNATIVE THERMODYNAMIC CYCLES FOR A HIGH EFFICIENCY HEAT PUMP DRYER
The energy consumption of current domestic dryers is significant, and the interest for high efficiency technologies is growing in the global context of energy cost increase. Heat pump dryers, for domestic uses, permit 50％ energy savings compared to current technologies. Operating conditions, at high temperature, present an interest for the use of refrigerant like water (R-718) or highly humid air. Steam mechanical compression (SMC) cycle, combined with a drying process using superheated steam as drying medium, is an open cycle where water vaporized from linen is the working fluid. A second technical solution for high energy efficiency dryer is studied: Brayton-Joule air cycle. Those two technical solutions are compared in terms of energy efficiency, drying intensity, and also technical constraints. A parameter study is proposed to evaluate the impact on the performance when the compressor efficiency and the heat exchanger area vary.
Lionel PALANDRE Denis CLODIC
Center for Energy and Processes,Ecole des Mines, 60 boulevard Saint Michel PARIS, 75272 cedex 06, FRANCE
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）