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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Studies on Performance of CO2 Water Heater by Numerical Modeling

수치적 모델링을 통한 이산화탄소 급탕기의 특성 연구

  • Park, Han Vit (Department of Mechanical Engineering, Hanbat National University) ;
  • Yun, Rin (Department of Mechanical Engineering, Hanbat National University)
  • 박한빛 (한밭대학교 기계공학과) ;
  • 윤린 (한밭대학교 기계공학과)
  • Received : 2012.10.07
  • Published : 2013.01.10
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Abstract

Numerical modeling of $CO_2$ water heater was conducted prior to optimal design of medium and large sized $CO_2$ water heater, and the experimental test with small sized $CO_2$ water heater having heat capacity of 4 kW was completed to verify the present numerical model. The present model estimated the experimental data of COP(coefficient of performance), heating capacity, and the hot water outlet temperature within the range of 3% to 8% of mean deviation. As increase of EEV(electric expansion valve) opening area, decreasing of heating capacity and the hot water outlet temperature, and increasing of COP were found in both experimental and numerical investigation.

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References

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Cited by

  1. Water Heater vol.25, pp.4, 2013, https://doi.org/10.6110/KJACR.2013.25.4.173