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A Study on the Price Evaluation Per 1 Ton of Liquefied Natural Gas According to the Refrigerants Supply Temperature in the Electric Refrigerator

전기식 냉동기에서 냉매의 공급온도에 따른 액화천연가스의 톤당 냉열 가격 산출에 대한 연구

  • KIM, YONUNGWOO (Division of Mechanical Engineering, Hoseo University) ;
  • PARK, ILSOO (Department of Chemical Engineering, Kongju National University) ;
  • CHO, JUNGHO (Department of Chemical Engineering, Kongju National University)
  • Received : 2019.09.16
  • Accepted : 2019.10.31
  • Published : 2019.10.31

Abstract

In this paper, cold heat price contained in the 1 ton/h of LNG has been evaluated using PRO/II with PROVISION release 10.2 from Aveva company when LNG is used to liquefy several refrigerants instead of using vapor recompression refrigeration cycle. Normal butane, R134a, NH3, R22, propane and propylene refrigerants were selected for the modeling of refrigeration cycle. It was concluded that LNG cold heat price was inversely proportional to the refrigerant supply temperature, even though LNG supply flow rate is not varied according to the refrigerant supply temperature.

Keywords

References

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