Thermodynamic modeling of a novel air dehumidification system

被引:79
作者
Zhang, LZ [1 ]
Zhu, DS [1 ]
Deng, XH [1 ]
Hua, B [1 ]
机构
[1] S China Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Educ Minist, Sch Chem & Energy Engn, Guangzhou 510640, Peoples R China
基金
中国国家自然科学基金;
关键词
air dehumidification; enthalpy exchanger; membrane; cooling coils;
D O I
10.1016/j.enbuild.2004.06.019
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A novel air dehumidification system is proposed. The proposed system incorporates a membrane-based total heat exchanger into a mechanical air dehumidification system, where the fresh air flows through the enthalpy exchanger, the evaporator and the condenser subsequently. Thermodynamic model for the performance estimation of the combined system is investigated. Processes of the fresh air and the refrigerant are studied. Two additional specific programs are devised to calculate the psychrometrics and the thermodynamic properties of the refrigerant R134a. Annual energy requirement is 4.15 x 10(6) kJ per person, or 33% saving from a system without energy saving measures. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:279 / 286
页数:8
相关论文
共 13 条
[1]  
ANGANG H, 2003, EC TOLL SARS CHINA Y
[2]  
*ASHRAE, 1997, ASHRAE HDB EN EST MO, pCH30
[3]  
ASHRAE, 1999, VENT ACC IND AIR QUA
[4]   THERMO-PHYSICAL PROPERTIES OF 1,1,1,2-TETRAFLUOROETHANE (R-134A) [J].
BASU, RS ;
WILSON, DP .
INTERNATIONAL JOURNAL OF THERMOPHYSICS, 1989, 10 (03) :591-603
[5]   CYRANO: A computational model for the detailed design of plate-fin-and-tube heat exchangers using pure and mixed refrigerants [J].
Bensafi, A ;
Borg, S ;
Parent, D .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 1997, 20 (03) :218-228
[6]  
Harriman LG, 2002, ASHRAE J, V44, P22
[7]   Thermal comfort and energy consumption of the radiant ceiling panel system. Comparison with the conventional all-air system [J].
Imanari, T ;
Omori, T ;
Bogaki, K .
ENERGY AND BUILDINGS, 1999, 30 (02) :167-175
[8]   Numerical simulation of a variable speed refrigeration system [J].
Koury, RNN ;
Machado, L ;
Ismail, KAR .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2001, 24 (02) :192-200
[9]   Energy savings potential of chilled-ceiling combined with desiccant cooling in hot and humid climates [J].
Niu, JL ;
Zhang, LZ ;
Zuo, HG .
ENERGY AND BUILDINGS, 2002, 34 (05) :487-495
[10]   Membrane-based enthalpy exchanger: material considerations and clarification of moisture resistance [J].
Niu, JL ;
Zhang, LZ .
JOURNAL OF MEMBRANE SCIENCE, 2001, 189 (02) :179-191