Studies on the Focusing Solar Agricultural Crop Dryer - II. Aluminum-laminated Acryl Film Cylindrical Focusing Solar Food Dryer -

농산물(農産物) 건조용(乾燥用) 곡면(曲面) 집광식(集光式) 태양(太陽) 열(熱) 이용(利用) 장치(裝置)에 관한 연구 - 제(第) 2 보(報) : 알루미늄-아크릴 필름 태양열(太陽熱) 이용(利用) 장치를 사용한 농산물(農産物) 건조(乾燥)에 관한 연구 -

  • Chun, Jae-Kun (Department of Food Technology, College of Agriculture Seoul National University) ;
  • Mok, Chul-Kyoon (Department of Food Technology, College of Agriculture Seoul National University)
  • 전재근 (서울 대학교, 농과 대학, 식품 공학과) ;
  • 목철균 (서울 대학교, 농과 대학, 식품 공학과)
  • Published : 1979.12.15

Abstract

A cylindrical focusing solar food dryer made with aluminum-laminated acryl film was demonstrated for the dehydration of agricultural product and its perfomance was analyzed with respect to the solar energy utilization and its scale-up technology. With one square meter reflector and a 74 cm copper pipe absorber, the heat exchange efficiency between air stream and absorber was 1.39 %. The installation of circular segment-baffle increased 33 % of the efficiency. In dehydration of radish-cut with this drier, 58 % of fuel consumption was saved. The relationship between reflector area and heat energy utilization was established for the scale-up purpose.

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