Simplified Heat and Mass Transfer Model for Cross-Flow and Countercurrent Flow Packed Bed Tower Dehumidifiers with a Liquid Desiccant System

被引：3

作者：

Hu, Shih-Cheng ^{[1
]}

Shiue, Angus ^{[1
]}

Chiu, Yi-Shiung ^{[2
]}

Wang, Archy ^{[2
]}

Chen, Jacky ^{[2
]}

机构：

[1] Natl Taipei Univ Technol, Dept Energy & Refrigerating Air Conditioning Engn, Taichung 10608, Taiwan

[2] Multiflow Technol, Taichung 414, Taiwan

来源：

SUSTAINABILITY | 2016年 / 8卷 / 12期

关键词：

cross-flow; countercurrent flow; dehumidifiers; liquid desiccant system; MEMBRANE ENERGY EXCHANGERS; AIR DEHUMIDIFICATION; STRUCTURED PACKINGS; HVAC SYSTEMS; PERFORMANCE; PARAMETERS; LAMEES;

D O I：

10.3390/su8121264

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A mathematical model is developed using the Matlab/Simulink platform to investigate heat and mass transfer performance of cross-flow and counterflow dehumidifiers with Lithium Chloride (LiCl) solution. In the liquid desiccant dehumidifier, the orthogonal polynomial basis is used to simulate the combined processes of heat and mass transfer. The temperature profiles on cross-flow and countercurrent flow dehumidifiers are demonstrated. The resultant counter flow air changes the temperature profile of the LiCl solution in the longitudinal direction because of the drag forces. In addition, when inlet airflow rate reaches 15 kg.s(-1), the temperature effect becomes less obvious and may be reasonably negligible. Under these conditions, the air changes the design factor and determines the interfacial temperature. It is demonstrated that the mathematical model can be of great value in the design and improvement of cross-flow and countercurrent flow dehumidifiers.

引用

页数：13

共 49 条

[1]

Abdel-Salam MRH, 2016, ASHRAE TRAN, V122, P134

[2] Performance testing of a novel 3-fluid liquid-to-air membrane energy exchanger (3-fluid LAMEE) under desiccant solution regeneration operating conditions [J].

Abdel-Salam, Mohamed R. H. ;

Besant, Robert W. ;

Simonson, Carey J. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 95 :773-786

[3] Design and testing of a novel 3-fluid liquid-to-air membrane energy exchanger (3-fluid LAMEE) [J].

Abdel-Salam, Mohamed R. H. ;

Besant, Robert W. ;

Simonson, Carey J. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 92 :312-329

[4] Sensitivity of the performance of a flat-plate liquid-to-air membrane energy exchanger (LAMEE) to the air and solution channel widths and flow maldistribution [J].

Abdel-Salam, Mohamed R. H. ;

Besant, Robert W. ;

Simonson, Carey J. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2015, 84 :1082-1100

[5] State-of-the-art in liquid-to-air membrane energy exchangers (LAMEEs): A comprehensive review [J].

Abdel-Salam, Mohamed R. H. ;

Ge, Gaoming ;

Fauchoux, Melanie ;

Besant, Robert W. ;

Simonson, Carey J. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2014, 39 :700-728

[6] Expected energy and economic benefits, and environmental impacts for liquid-to-air membrane energy exchangers (LAMEEs) in HVAC systems: A review [J].

Abdel-Salam, Mohamed R. H. ;

Fauchoux, Melanie ;

Ge, Gaoming ;

Besant, Robert W. ;

Simonson, Carey J. .

APPLIED ENERGY, 2014, 127 :202-218

[7]

[Anonymous], 2005, 15 INT C PROCESS CON

[8] ANALYTICAL APPROACH BASED ON A MATHEMATICAL MODEL OF AN AIR DEHUMIDIFICATION PROCESS [J].

Babakhani, D. .

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING, 2013, 30 (04) :793-799

[9] A simple analytical method to estimate all exit parameters of a cross-flow air dehumidifier using liquid desiccant [J].

Bassuoni, M. M. .

JOURNAL OF ADVANCED RESEARCH, 2014, 5 (02) :175-182

[10] Analytical Modeling and Performance Study of a Cross Flow Air Dehumidifier Using Liquid Desiccant [J].

Bassuoni, M. M. .

MATERIALS RESEARCH AND APPLICATIONS, PTS 1-3, 2014, 875-877 :1205-1213

← 1 2 3 4 5 →