Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
권호 표지

Thermodynamic Analysis of a Double-Effect Absorption Heating System Using Water-LiBr- LiSCN Solution As $20{\sim}40^{\circ}C$ Range Solar Evaporator Heating

태양열을 증발기 열원으로 사용($20{\sim}40^{\circ}C$범위)하며 LiSCN+LiBr 수용액을 사용하는 흡수식 2중효용 난방시스템의 열역학적 해석

  • Published : 2006.12.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, with water-LiBr-LiSCN mixture which utilizes solar energy as mid temperature range evaporator heat source, a thermodynamic analysis was performed to provide design data for a double-effect absorption heating system. A comparative study of the water-LiBr-LiSCN mixture against the water-LiBr pair was conducted by a computer simulation. The computer simulation is based on mass, material and heat balance equations for each part of the system. Coefficients of performance and flow ratios for effects of different operating temperatures are investigated. It is found that the heating COP is higher for the water-LiBr-LiSCN mixture than for the water-LiBr pair, and FR is lower for the former.

Keywords

References

  1. 원승호, 흡수식 2중효용 시스템의 증발기 열원으로 태양열을 이용하느 LiCl 수용액 난방시스템 해석, 한국태양에너지학회 논문집, 2004, Vol. 24, No. 3, pp.39 -46
  2. G. C. Vliet, et al., Waer-lithium bromide double-effect absorption cooling cycle analysis, ASHRAE Trans., 1982, Vol. 88, No.1, pp. 811-823
  3. 원승호 외 , 흡수액으로 에틸렌 글리콜이 혼합되고 태양열을 이용한 이중효용 흡수식 시스템의 냉방 특성해석, 한국태양에너지학회 논문집, 2003, Vol. 23, No. 4, pp.45 - 54
  4. F. A. Holland , etc, Thermodynamic design data for absorption heat pump systems operating on water lithium chloride - part one. cooling, J. Heat Recovery systems & CHP, 1988, Vol. 8, No.1, pp. 33-41 https://doi.org/10.1016/0890-4332(88)90039-7
  5. S. H. Won, etc, Thermodynamic design data for double-effect absorption heat pump systems using water - lithium chloride - cooling, 1991, Heat Recovery Systems & CHP, Vol.11, No. 1, pp.41 - 48 https://doi.org/10.1016/0890-4332(91)90186-8
  6. S. H. Won, etc, Vapor pressures of water + LiCl + Ethylene Glycol and water + LiBr + Ethylene Glycol, J. of Chemical & Engineering Data, 1995, Vol. 40, No. 2, pp.496-498 https://doi.org/10.1021/je00018a031