| Heat pump technology which application in drying is not only could decrease the energy's consumption, and also could improve the quality of drying subjects. In this paper, the jujube of Taihang Mountain is regard as drying subject, On the base of a lot of research and analysis, the structure of drying system is determined, meanwhile, design and select the heat pump drying system, using the first law of thermodynamics and the second law of thermodynamics to analysis the circulations under the ideal situation. Utilize the existing laboratory furniture of air conditioner system, put up the laboratory furniture of the drying unit. Based on the experiment datum's analysis of two reference schemes, the best drying scheme was proposed, which not only has the features of better drying performance and obviously energy-conserving result, but also accord with the discipline of moisture moving in drying subjects, and the destroy of internal structure is less too.
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