PERFORMANCE ANALYSIS OF A HEAT PUMP DRYER OPERATED IN PARTIALLY OPEN MODE

摘要：

　　A fixed-bed dryer for medicinal plants was studied theoretically and in industrial practice.A simple simulation model describing batch-type heat pump drying was developed.Simulation results showed satisfactory agreement with the measurements.Internal cross-flow heat exchangers increased the performance of the heat pump dryers considerably.A series of numerical simulations for different operating conditions was performed demonstrating primary energy savings.Almost all ambient air conditions relevant for the drying season in Germany were covered in the analysis.The partially open mode was found to be approximately 20 % more energy-efficient than the closed cycle mode of operation.

关键词： heat pump drying heat recovery dryer control energy efficiency medicinal plants

作者: Th.Ziegler H.Jubaer J.Mellmann

作者单位: Department of Post-harvest Technology Leibniz Institute for Agricultural Engineering Potsdam-Bornim(ATB)Max-Eyth-Allee 100,14469 Potsdam,Germany

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-8

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）