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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Variation of the Refrigerated Display Case with Air Curtain in Accordance with Back Pressure Condition

배압에 따른 에어커튼형 냉동용 전시케이스의 성능변화

  • Sung, Sun-Kyung (Department of Building equipment System Engineering, Gachon University) ;
  • Ahn, Kyo-Chul (Department of Building equipment System Engineering, Gachon University)
  • 성순경 (가천대학교 건축설비공학과) ;
  • 안교철 (가천대학교 건축설비공학과)
  • Received : 2013.08.29
  • Published : 2013.11.10
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Abstract

Vertical open display cases are widely used in shopping malls, supermarkets, or retail stores to sell frozen and refrigerated products. Open display cases use air curtains to maintain a reasonable temperature within the storage space, prevent insects from breaking in, and reduce energy usage. In this research, computational fluid dynamics was used to find the optimal condition for reducing energy by considering various conditions such as discharge speed or temperature of air curtains. Results of the study showed that the amount of energy consumed in the display cabinet is influenced by the discharge speed and temperature of the slots installed on the upper area and the amount of air supplied to the storage area inside the shelf. This shows that the amount of discharged air supplied from the storage area influences the formation of air curtain and also the amount of energy consumption. As a result of this study, we learned that the amount of energy used can be reduced by increasing the amount of discharged air within the storage area and enhancing back pressure.

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References

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