Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Experimental Study on the Development of Food Drying Machine for Home Use Using Low Electricity

저전력 가정용 식품건조기 개발에 관한 실험적 연구

  • Kim, Soon-Ho (Department of Automotive and Mechanical Engineering, Silla University) ;
  • Kim, Ki-Wan (Department of Automotive and Mechanical Engineering, Silla University) ;
  • Kim, Hoon (Department of Electrical Engineering, Korea University)
  • 김순호 (신라대학교 자동차기계공학과) ;
  • 김기완 (신라대학교 자동차기계공학과) ;
  • 김훈 (고려대학교 전기전자전파공학과)
  • Received : 2015.05.06
  • Accepted : 2015.07.28
  • Published : 2015.08.31
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Abstract

This study has been analyzed and investigated the possibility for the substitution of a heat source with the application of PTC(Positive Temperature Coefficient Heater) in a food drying machine. And this experiment was conducted to measure temperatures at the upper part of the vessel and the heat sink. And the structure has the many holes plane connected with the external air in the upper part of similar volumetric vessel, and attached to the PTC heater (3sets) of total consumption electricity of 120[W] in Al radiant heat structure and the small fan (2sets) in the suitable space of the lower part. Consequently, it was found that at the most conditions of food drying test with the seven holes(5mm) under the control temperature $62^{\circ}C$, the optimum drying condition formatted and the optimum time range especially appeared from 6,500 second to 7,000 second in case of drying test on banana sample.

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References

  1. D. J. Kim, 2013, "Numerical Analysis of the Internal Air Flow of Heat Pump Food Dryer", International Journal of Air-Conditioning and Refrigeration, Vol. 6, pp. 1229-6422.
  2. Y. S. Kim, J. M. Seo and J. Y. 2014, "A Case Study on the Quality Evaluation of the Leading Small Domestic Appliances in the Global Market - Focusing on the Food Dehy - drator", Journal of the Korean Society for Quality Management, Vol. 42, No. 2. p. 253. https://doi.org/10.7469/JKSQM.2014.42.2.253
  3. L. G Kim and et al., 1998, "A numerical study on the performance of a heat pump assisted dryer", Journal of The Korean solar energy society Vol. 18, No. 2, pp. 91-104
  4. J. Y. Gong, Y. J. Lee and D. Y. Kim, 2011, "Power control of PTC heating element using variable AC Cycles", The Korean Institute of Signal Processing and Systems, Vol. 12, No. 4. p. 355.
  5. Y. S. Jeon, H. H, Shin, D. J. Yoo and S. O. Yoon, 2003, "Electrical Resistivity and NTC /PTC Transition Point of a Nitrogen-Doped SiC Igniter, and Their Correlation to Electrical Heating Properties", The Korean Ceramic Society, Vol. 49, No. 1, p. 124. https://doi.org/10.4191/kcers.2012.49.1.124
  6. kudra and Arun S. Mujumdar, 2007, "advanced drying technologies", pp. 40-41.
  7. Y. K. Eom, et al., 2006, "Flow analysis to develop uniform thermal flow distributions of the box type dryer for agriculture products", Korean Journal of Air Conditioning and Refrigeration, Vol. 18, No. 1, pp. 7-16.
  8. P. Juen, 2013, "Effect of Re-oxidation on the Electrical Properties of Muti layered PTC Thermistors", The Korean Institute of Electrical and Electronic Material Engineers, Vol. 26, No. 2, p. 89.
  9. J. K. Lim, 2009, "Improving quality of agri cultural electric dryer", National Academy of Agricultural Science, Rural development administration, pp. 22-77.
  10. S. H. Kim, 2013, "A Study on the Enhance ment of Cooling Efficiency for the Cabinet of Automatic Controller in the Interior of Industrial Building", Journal of Korean Society for Power System Engineering, Vol. 17, No. 6, pp. 79-87.