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Thermal Design of a Cooling Coil for Building Air Conditioning

건물 공조용 냉수 코일의 열 설계

  • Kim, Nae-Hyun (Department of Mechanical System Engineering, University of Incheon) ;
  • Byun, Ho-Won (Department of Mechanical System Engineering, University of Incheon)
  • 김내현 (인천대학교 기계시스템공학과) ;
  • 변호원 (인천대학교 기계시스템공학과)
  • Received : 2015.06.10
  • Accepted : 2015.10.08
  • Published : 2015.10.31

Abstract

The surface of the cooling coil becomes dry, wet or partially wet depending on the operating condition. Thus, a proper design of the cooling coil should include a heat transfer analysis on dry, wet or partially wet surfaces. In this study, an elementary model, which analyzes the cooling on an elementaty basis, is proposed. Comparison of the predictions of the model with experimental data of the cooling coil revealed that heat transfer rates were predicted within 10.1%, airside pressure drop within 11.1% and sensible heat ratio within 5.7%. The model was used to investigate the effect of water circuitory on cooling coil performance.

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