Investigation on coupled heat and mass transfer coefficients between compressed air and liquid desiccant in a packed dryer

被引:18
作者
Yin, Yonggao [1 ,2 ,3 ]
Zheng, Baojun [1 ,2 ]
Chen, Tingting [1 ,2 ]
Shao, Bin [1 ,2 ]
Zhang, Xiaosong [1 ,2 ,3 ]
机构
[1] Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China
[2] Southeast Univ, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Jiangsu, Peoples R China
[3] Southeast Univ, Jiangsu Prov Key Lab Solar Energy Sci & Technol, Nanjing 210096, Jiangsu, Peoples R China
关键词
Compressed air drying; Liquid desiccant; Heat and mass transfer; Model; Experiment; PERFORMANCE; DEHUMIDIFIER; MODEL;
D O I
10.1016/j.ijheatmasstransfer.2015.11.020
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents experimental tests and theoretical analysis on coupled heat and mass transfer characteristic of a compressed air drying system using liquid desiccant proposed in our previous work. The minimum possible humidity ratio of the processed compressed air can reach 0.11 g/kg under 0.80 MPa, which can satisfy demand of various industrial applications. Effects of operation parameters of the packed dryer on heat and mass transfer coefficients are obtained based on the experimental data and mathematical model. It is found that heat and mass transfer coefficients between compressed air and solution could be remarkably enhanced by increasing the air pressure, compressed air velocity and solution concentration while the influence of solution temperature is negative linearly. Reliable heat and mass transfer coefficients are provided for optimum design of pressurized air dryers, which is also meaningful to understand the heat and mass transfer behavior between compressed air and liquid desiccant. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1218 / 1226
页数:9
相关论文
共 31 条
[1]  
[Anonymous], 1982, INTRO ERROR ANAL, DOI DOI 10.1119/1.13309
[2]   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
[3]   An experimental study of structured packing dehumidifier/regenerator operating with liquid desiccant [J].
Bassuoni, M. M. .
ENERGY, 2011, 36 (05) :2628-2638
[4]  
Capehart B.L., 2007, ENCY ENERGY ENG TECH, P236
[5]  
Chung TW, 2000, SEPAR SCI TECHNOL, V35, P1502
[6]   Properties of aqueous solutions of lithium and calcium chlorides: formulations for use in air conditioning equipment design [J].
Conde, MR .
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2004, 43 (04) :367-382
[7]   Use of liquid desiccant cooling to improve the performance of vapor compression air conditioning [J].
Dai, YJ ;
Wang, RZ ;
Zhang, HF ;
Yu, JD .
APPLIED THERMAL ENGINEERING, 2001, 21 (12) :1185-1202
[8]   Quick performance prediction of liquid desiccant regeneration in a packed bed [J].
Gandhidasan, P .
SOLAR ENERGY, 2005, 79 (01) :47-55
[9]   A simplified model for air dehumidification with liquid desiccant [J].
Gandhidasan, P .
SOLAR ENERGY, 2004, 76 (04) :409-416
[10]   Analysis of effect of gas-liquid interfacial disturbance on mass transfer performance [J].
Honda Wu ;
Tsair-Wang Chung .
SURFACE REVIEW AND LETTERS, 2006, 13 (2-3) :279-286