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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Influence of NCG Charged Mass on the Thermal Performance of VCHP with Screen Mesh Wick

스크린메쉬형 VCHP에서 NCG량에 따른 열전달 성능실험

  • Park, Young-Sik (Department of Automotive Machine, Korea Polytechnic IV College) ;
  • Chung, Kyung-Taek (2nd Stage BK21(AMAEEP), Gyeongsang National University) ;
  • Suh, Jeong-Se (School of Mechanical and Aerospace Engineering, ERI, Gyeongsang National University)
  • 박영식 (한국폴리텍IV 아산대학) ;
  • 정경택 (경상대학교 BK21사업단(첨단기계)) ;
  • 서정세 (경상대학교 기계항공공학부)
  • Published : 2008.10.10
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Abstract

Experimental study has been performed to investigate the influence of non-condensible gas(NCG) charged mass on the thermal performance of a variable conductance heat pipe(VCHP) with screen mesh wick. The VCHP is furnished by screen mesh number 200 for the pipe outer diameter of 12.7mm and the pipe length of 500 mm. The VCHP is filled with water as working fluid of 4.8g and nitrogen as NCG and has evaporator, condenser and adiabatic section, respectively. For the results from experiment, it is found that, for the same charged mass of working fluid, the overall wall temperatures of heat pipe grows up with increasing NCG charged mass. The variation of operating temperature of VCHP reduces with increasing NCG mass. In addition, the profile of axial wall temperature distribution is presented for heat transport capacity of heat pipe, the temperature of cooling water of condenser, inclination angle, and operating temperature.

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References

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