Effect of Refrigerant Pipe Length on Sea Water Cooling System Performance

해수냉각시스템 성능에 미치는 냉매배관길이의 영향

  • Yun, Jeong-In (Department of Refrigeration and Air-conditioning Engineering, Pukyong National University) ;
  • Jo, Yeong-Je (Department of Food Science and Technology, Pukyong National University)
  • 윤정인 (부경대학교 공과대학 냉동공조공학과) ;
  • 조영제 (부경대학교 수산과학대학 식품공학과)
  • Published : 1998.09.01


The purpose of this study is analyzing the performance of sea water cooling system under various refrigerant pipe length. In sea water cooling system, the increase of refrigerant pipe length cause increases of pressure drops. These pressure drops cause fresh gas in liquid pipe and increase specific volume in gas pipe outlet, so sea water cooling system capacity is decreased by decrease of refrigerant mass flow rate. Sea water cooling system capacity in refrigerant pipe length 70m is decreased more than 30% when compared with pipe length 10m and the decrease of the coefficient of performance is nearly 20%.


  1. 냉동설비공학 윤정인(외)
  2. Fluid mechanics(3th Edition) Frank M. White
  3. 冷凍空調便覽 v.2 日本冷凍會
  4. 第30回空氣調和 · 冷凍聯合講渡會講渡論文集 HFC冷媒 · 冷凍サイクルシミュレツョン 池元眞佐美;山本泰司;黑河通屋;名道賢二;片罔久典
  5. ASHRAE HANDBOOK Refri-geration System and Applications ASHRAE