TY - JOUR
T1 - Review on the fundamentals and investigations of falling film dehumidification/absorption refrigeration based on CFD technology
AU - Wen, Tao
AU - Lu, Lin
AU - Luo, Yimo
N1 - Funding Information:
The work is financially supported by Hong Kong Research Grant Council through General Research Fund (PolyU 152184/17E). The research is also funded by the Research Institute for Sustainable Urban Development (RISUD) of the Hong Kong Polytechnic University .
Publisher Copyright:
© 2021
PY - 2021/6
Y1 - 2021/6
N2 - The falling film type liquid desiccant dehumidification cooling system and absorption refrigeration system are regarded as promising technologies due to their energy saving potential and utilization of low-grade energy. CFD (Computational Fluid Dynamics) technology has been continuously developed due to its advantages in analyzing the elaborate flow, heat and mass transfer behavior in thermodynamic processes. The present review comprehensively summarized previous studies concerning the simultaneous fluid flow, heat and mass transfer in falling film liquid desiccant dehumidification and absorption refrigeration system. Firstly, the mathematical governing equations for the description of flow and absorption process were described. Interphase-capturing methods including volume-of-fraction model, level-set model and front tracking model were introduced then. Subsequently, different types of mass transfer model for the calculation of interface mass flux were summarized. Finally, the related CFD studies on the falling film liquid desiccant dehumidification and absorption refrigeration process were reviewed in detail. Conclusions and some suggestions for future work were presented as well. The present review is expected to provide a helpful reference for the further study of the coupled hydrodynamic, heat and mass transfer characteristics in falling film heat and mass transfer components.
AB - The falling film type liquid desiccant dehumidification cooling system and absorption refrigeration system are regarded as promising technologies due to their energy saving potential and utilization of low-grade energy. CFD (Computational Fluid Dynamics) technology has been continuously developed due to its advantages in analyzing the elaborate flow, heat and mass transfer behavior in thermodynamic processes. The present review comprehensively summarized previous studies concerning the simultaneous fluid flow, heat and mass transfer in falling film liquid desiccant dehumidification and absorption refrigeration system. Firstly, the mathematical governing equations for the description of flow and absorption process were described. Interphase-capturing methods including volume-of-fraction model, level-set model and front tracking model were introduced then. Subsequently, different types of mass transfer model for the calculation of interface mass flux were summarized. Finally, the related CFD studies on the falling film liquid desiccant dehumidification and absorption refrigeration process were reviewed in detail. Conclusions and some suggestions for future work were presented as well. The present review is expected to provide a helpful reference for the further study of the coupled hydrodynamic, heat and mass transfer characteristics in falling film heat and mass transfer components.
KW - Absorption refrigeration
KW - Computational fluid dynamics
KW - Falling film
KW - Heat and mass transfer
KW - Liquid desiccant dehumidification
UR - http://www.scopus.com/inward/record.url?scp=85103043126&partnerID=8YFLogxK
U2 - 10.1016/j.ijheatmasstransfer.2021.121042
DO - 10.1016/j.ijheatmasstransfer.2021.121042
M3 - Review article
AN - SCOPUS:85103043126
SN - 0017-9310
VL - 171
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
M1 - 121042
ER -