Analytical solution of combined heat and mass transfer performance in a cross-flow packed bed liquid desiccant air dehumidifier

Liu, Xiaohua; Jiang, Yi; Qu, K. Y.

doi:10.1016/j.ijheatmasstransfer.2007.11.059

Cited by 48 publications

(9 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Air dehumidification has been a hot topic in recent years [1][2][3]. In comparison, its inverse process -air humidification, has drawn little attention.…”

Section: Introductionmentioning

confidence: 99%

Coupled heat and mass transfer in an application-scale cross-flow hollow fiber membrane module for air humidification

Zhang

2012

International Journal of Heat and Mass Transfer

105

View full text Add to dashboard Cite

“…Air dehumidification has been a hot topic in recent years [1][2][3]. In comparison, its inverse process -air humidification, has drawn little attention.…”

Section: Introductionmentioning

confidence: 99%

Coupled heat and mass transfer in an application-scale cross-flow hollow fiber membrane module for air humidification

Zhang

2012

International Journal of Heat and Mass Transfer

105

View full text Add to dashboard Cite

“…The results showed that the utilization of waste heat leads to reduced initial and running costs when compared with conventional air-conditioning systems. Liu et al (2008) performed an analytical study to examine the heat and mass transfer performance of a cross-flow packed bed absorber. It is shown that the developed analytical solutions are effective to optimize the absorber.…”

Section: List Of Symbols Amentioning

confidence: 99%

Development and modelling of a solar assisted liquid desiccant dehumidification air-conditioning system

Mohaisen

2014

Build. Simul.

View full text Add to dashboard Cite

This paper presents the development and simulation of an advanced solar assisted liquid desiccant dehumidification air-conditioning system for energy efficiency and sustainability. The system is mainly designed to cut down building electricity consumption while providing satisfied indoor thermal comfort. It includes a counter flow packed bed absorber, a counter flow packed bed regenerator, and an array of flat plate solar collectors. The system is integrated with an evaporative cooler and a cooling tower to cool the processed air and the strong desiccant solution, respectively.A whole system simulation is used to evaluate the system performance by using a full-scale simulation system developed on the basis of Matlab Simulink platform. The simulation results based on three consecutive sunny summer days in Sydney show that the proposed system can achieve an average daily thermal coefficient of performance of 0.5-0.55, and 73.4% of thermal energy required for thermal regeneration was provided by the solar collectors. It is expected that the average daily thermal coefficient of performance could be higher during other mild summer days as the percentage of thermal energy provided by the solar water heating system will increase due to the relatively low cooling demand of the building.

show abstract

“…Xiao-HuaLiu et al [2] investigated an analytical solution to give air and desiccant parameters as well as enthalpy and moisture efficiency in a cross flow dehumidifier. Yin and Zhang [3] developed an NTU-Le model to determine the characteristics of liquid desiccant dehumidification.…”

Section: Introductionmentioning

confidence: 99%

Computer Simulation of Heat and Mass Transfer in a Cross Flow Parallel-Plate Liquid Desiccant-Air Dehumidifier

Mohammad

Mat²,

Sulaiman³

et al. 2014

Progress in Sustainable Energy Technologies Vol II

View full text Add to dashboard Cite

A MATLAB program using finite difference technique is investigated to predict the distribution of air stream parameters as well as desiccantsolution parameters inside the parallel plate absorber. The present absorber consists of 14 parallel plates with a surface area per unit volume ratio of 80 m 2 /m 3 . Calcium chloride as a liquid desiccant flows through the top of the plates to the bottom while the air flows through the gap between the plates making it a cross flow configuration. The model results show the effect of desiccant mass flow rate on the performance of the dehumidifier (moisture removal rateand the effectiveness). The results show that the maximum temperature and humidity ratio differences of the air are 2.56 C and 11 g/Kg with a maximum solution mass flow rate of 160 g/s. The maximum temperature and minimum concentration differences of solution in the direction flow of solution are 3.185 C and 0.34 % with a maximum solution mass flow rate of 160 g/s. The moisture removal rate increases rapidly with solution flow rate from 1.41 to 2.196 g s À1 , but the moisture removal stagnates at high desiccant solution mass flow rates. The effectiveness achieves an increase of 0.39-0.66 when the solution mass flow rate increases from 30 to 160 g s À1 .

show abstract

Analytical solution of combined heat and mass transfer performance in a cross-flow packed bed liquid desiccant air dehumidifier

Cited by 48 publications

References 20 publications

Coupled heat and mass transfer in an application-scale cross-flow hollow fiber membrane module for air humidification

Coupled heat and mass transfer in an application-scale cross-flow hollow fiber membrane module for air humidification

Development and modelling of a solar assisted liquid desiccant dehumidification air-conditioning system

Computer Simulation of Heat and Mass Transfer in a Cross Flow Parallel-Plate Liquid Desiccant-Air Dehumidifier

Contact Info

Product

Resources

About