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Investigation on capacity matching in liquid desiccant and heat pump hybrid air-conditioning systems

Journal Article


Abstract


  • Liquid desiccant and heat pump (LDHP) hybrid air-conditioning system provides a promising

    independent air dehumidification solution. Capacity matching among the four major heat

    and mass transfer components, i.e. dehumidifier, regenerator, evaporator and condenser, is

    essentially important for energy efficiency of the hybrid system. In this paper, the configuration

    of the hybrid system is firstly studied. Novel matching indices are proposed to evaluate

    the matching effect. The results show that a LDHP hybrid system with double-condenser,

    one solution-cooled and one air-cooled, is a feasible configuration for achieving capacity

    matching. To achieve dynamic capacity matching under real changing operating conditions,

    the effects of three critical operating variables, including solution flow rate, revolution of the

    compressor and air flow rate in the air-cooled condenser, on capacity matching and energy

    performance are studied. Simulation results show that dynamic capacity matching can only

    be achieved by regulating these three operating variables simultaneously.Liquid desiccant and heat pump (LDHP) hybrid air-conditioning system provides a promising

    independent air dehumidification solution. Capacity matching among the four major heat

    and mass transfer components, i.e. dehumidifier, regenerator, evaporator and condenser, is

    essentially important for energy efficiency of the hybrid system. In this paper, the configuration

    of the hybrid system is firstly studied. Novel matching indices are proposed to evaluate

    the matching effect. The results show that a LDHP hybrid system with double-condenser,

    one solution-cooled and one air-cooled, is a feasible configuration for achieving capacity

    matching. To achieve dynamic capacity matching under real changing operating conditions,

    the effects of three critical operating variables, including solution flow rate, revolution of the

    compressor and air flow rate in the air-cooled condenser, on capacity matching and energy

    performance are studied. Simulation results show that dynamic capacity matching can only

    be achieved by regulating these three operating variables simultaneously.

UOW Authors


  •   Niu, Xiaofeng (external author)
  •   Xiao, Fu (external author)
  •   Ma, Zhenjun

Publication Date


  • 2012

Geographic Focus


Citation


  • Niu, X., Xiao, F. & Ma, Z. (2012). Investigation on capacity matching in liquid desiccant and heat pump hybrid air-conditioning systems. International Journal of Refrigeration, 35 (1), 160-170.

Scopus Eid


  • 2-s2.0-82955235531

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3604

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 160

End Page


  • 170

Volume


  • 35

Issue


  • 1

Abstract


  • Liquid desiccant and heat pump (LDHP) hybrid air-conditioning system provides a promising

    independent air dehumidification solution. Capacity matching among the four major heat

    and mass transfer components, i.e. dehumidifier, regenerator, evaporator and condenser, is

    essentially important for energy efficiency of the hybrid system. In this paper, the configuration

    of the hybrid system is firstly studied. Novel matching indices are proposed to evaluate

    the matching effect. The results show that a LDHP hybrid system with double-condenser,

    one solution-cooled and one air-cooled, is a feasible configuration for achieving capacity

    matching. To achieve dynamic capacity matching under real changing operating conditions,

    the effects of three critical operating variables, including solution flow rate, revolution of the

    compressor and air flow rate in the air-cooled condenser, on capacity matching and energy

    performance are studied. Simulation results show that dynamic capacity matching can only

    be achieved by regulating these three operating variables simultaneously.Liquid desiccant and heat pump (LDHP) hybrid air-conditioning system provides a promising

    independent air dehumidification solution. Capacity matching among the four major heat

    and mass transfer components, i.e. dehumidifier, regenerator, evaporator and condenser, is

    essentially important for energy efficiency of the hybrid system. In this paper, the configuration

    of the hybrid system is firstly studied. Novel matching indices are proposed to evaluate

    the matching effect. The results show that a LDHP hybrid system with double-condenser,

    one solution-cooled and one air-cooled, is a feasible configuration for achieving capacity

    matching. To achieve dynamic capacity matching under real changing operating conditions,

    the effects of three critical operating variables, including solution flow rate, revolution of the

    compressor and air flow rate in the air-cooled condenser, on capacity matching and energy

    performance are studied. Simulation results show that dynamic capacity matching can only

    be achieved by regulating these three operating variables simultaneously.

UOW Authors


  •   Niu, Xiaofeng (external author)
  •   Xiao, Fu (external author)
  •   Ma, Zhenjun

Publication Date


  • 2012

Geographic Focus


Citation


  • Niu, X., Xiao, F. & Ma, Z. (2012). Investigation on capacity matching in liquid desiccant and heat pump hybrid air-conditioning systems. International Journal of Refrigeration, 35 (1), 160-170.

Scopus Eid


  • 2-s2.0-82955235531

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/3604

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 160

End Page


  • 170

Volume


  • 35

Issue


  • 1