南京林业大学学报（自然科学版）

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2007, Vol. 31 ›› Issue (04): 41-45.doi: 10.3969/j.jssn.1000-2006.2007.04.009

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Wood Drying with Two-stage Compression High Temperature Heat-pump

ZHANG Zhen-tao1, ZHANG Bi-guang2, GU Lian bai1*, LI Liang2   

  1. 1. College of Wood Science and Technology Nanjing Forestry University, Nanjing 210037, China; 2. College of Materials Science and Technology Beijing Forestry University, Beijing 100083, China
  • Online:2007-08-18 Published:2007-08-18

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Abstract: The drying equipment of two-stage compressing high temperature heat pump was developed. This heat pump drying equipment can switch between the first stage compressor and the second stage compressor. Components and the working principle of two-stage compressing high temperature heat pump equipment were introduced. Drying experiment was conducted with Pinus massoniana. Results showed that this equipment had a great energy saving performance, the average energy recycling rate could achieve beyond 28%.

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