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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Optimization of Nozzle Arrangement in a Liquid Direct Contact Cooling System : Constant Inlet Flowrate Analysis

액체식 직접 접촉 냉각장치의 노즐배열 최적화 : 정풍량 해석

  • 김원년 (삼성전자 VD사업부 개발팀) ;
  • 김서영 (한국과학기술연구원 열유동제어연구센터)
  • Published : 2006.05.01
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Abstract

For the design of a liquid direct contact cooling system, thermal and hydraulic analysis has been carried out. Well-known Zukauskas correlations are used to estimate the Nusselt number between the liquid refrigerant columns and the inlet airflow. The inlet air velocity is set at a typical value used in an actual showcase. For a constant column number, the best nozzle arrangement is determined for the maximum heat transfer. Heat transfer increases as the transverse pitch of the refrigerant column decreases. Among all the cases dealt with in the present study, the staggered arrangement with 140-columns of $14{\times}10$ shows the best thermal peformance and the expected temperature drop is $27.8^{\circ}C$. The effect of downstream refrigerant columns on the overall thermal performance is investigated as well.

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References

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