Heat and mass transfer coefficients based on decoupling characteristics of heat and mass transfer between liquid desiccant and air (Ⅰ)NTU-Le model and Le-hD separative evaluation method
YIN Yonggao, ZHANG Xiaosong. Heat and mass transfer coefficients based on decoupling characteristics of heat and mass transfer between liquid desiccant and air (Ⅰ)NTU-Le model and Le-hD separative evaluation method[J]. CIESC Journal, 2008, (1): 6-11.
YIN Yonggao, ZHANG Xiaosong. Heat and mass transfer coefficients based on decoupling characteristics of heat and mass transfer between liquid desiccant and air (Ⅰ)NTU-Le model and Le-hD separative evaluation method[J]. CIESC Journal, 2008, (1): 6-11.DOI:
Liquid desiccant dehumidification process is an important process of liquid desiccant air conditioning systems with coupled heat and mass transfer.The NTU-Le model was developed to describe the liquid desiccant dehumidification process in this paper
and according to the model the characteristics of liquid desiccant dehumidification were presented. Lewis number Le had little effect on outlet air humidity ratio.Based on the characteristics a new method called Le-hD separative evaluation method was developed for determining coupled heat and mass transfer coefficients between air and liquid desiccant.