Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Heat Transfer and Pressure Drop of Cross-flow Heat Exchanger on Modules Variation

직교류 열교환기의 모듈수에 따른 열전달 및 압력강하 특성

  • Kim, Jong-Min (School of Mechanical Engineering, Inha University) ;
  • Kim, Jinsu (School of Mechanical Engineering, Inha University) ;
  • Yu, Byeonghun (School of Mechanical Engineering, Inha University) ;
  • Kum, Sungmin (School of Mechanical and Automotive Engineering, Halla University) ;
  • Lee, Chang-Eon (School of Mechanical Engineering, Inha University) ;
  • Lee, Seungro (School of Mechanical Engineering, Inha University)
  • Received : 2012.05.03
  • Accepted : 2013.06.05
  • Published : 2013.06.30
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Abstract

This study investigated the characteristics of heat transfer and pressure drop for cross-flow heat exchanger of premixed combustion system. The premixed burner was in front of a heat exchanger, and the number of heat exchanger modules was changed to investigate the characteristics of NOx and CO emissions with various equivalence ratios. In addition, the effectiveness, entropy generation and pressure drop were calculated by various number of heat exchanger modules and the performance of heat exchanger was analyzed by the exergy loss.

본 연구는 예혼합 연소시스템에 적용할 직교류 엇갈림 배열 열교환기의 열전달 및 압력강하 특성 검토를 목적으로 한다. 따라서 비예혼합화염보다 화염길이가 짧고 당량비 조절을 통해 NOx 및 CO 배출을 제어할 수 있는 예혼합방식의 버너 앞에 모듈로 구성된 열교환기를 설치한 후 당량비를 변화시킬 때 NOx와 CO의 배출특성을 검토하였다. 또한 열교환기의 모듈 변화에 대한 유용도, 엔트로피 생성량 및 압력강하를 계산하였고 엑서지 로스를 검토하여 열교환기의 성능을 분석하였다.

Keywords

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