Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on an Integrated Drying Machine with Microwave at Vacuum Conditions

진공고주파를 이용한 일체형 건조기개발에 관한 연구

  • Kim, Taehyung (Department of Mechanical Engineering, Graduate School, Jeju National University) ;
  • Ko, Gwang-Soo (Department of Mechanical Engineering, Graduate School, Jeju National University) ;
  • Park, Youn Cheol (Department of Mechanical Engineering, Jeju National University)
  • 김태형 (제주대학교대학원 기계공학과) ;
  • 고광수 (제주대학교대학원 기계공학과) ;
  • 박윤철 (제주대학교 기계공학과)
  • Received : 2014.04.22
  • Accepted : 2014.08.04
  • Published : 2014.09.10
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Abstract

In Jeju province, the Citrus is widely spread crop which is the most popular fruit on the island. When the quality of a Citrus is not in a good condition or when its size exceeds or is lower than the set criteria, it is discarded as a waste. In this study, a drying machine for waste Citrus has been developed with 2.6 GHz microwave energy supply to the Citrus at vacuum environment. The vacuum environment of the drying chamber was maintained to reduce the energy supply to the Citrus by lowering the evaporating temperature of the water. The experiment was conducted with variation of the vacuum pressure, interior temperature of the drying chamber, and operating time of the microwave. As a result, the effect of the temperature was shown to be higher than the other two control methods, and it showed with 0.305 g/W evaporation efficiency.

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References

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Cited by

  1. Recent Progress in Air-Conditioning and Refrigeration Research: A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2014 vol.27, pp.7, 2015, https://doi.org/10.6110/KJACR.2015.27.7.380