Field performance measurements of a heat pump desiccant unit in dehumidification mode

被引：55

作者：

Aynur, T. N. ^{[1
]}

Hwang, Y. H. ^{[1
]}

Radermacher, R. ^{[1
]}

机构：

[1] Univ Maryland, Ctr Environm Energy Engn, College Pk, MD 20742 USA

来源：

ENERGY AND BUILDINGS | 2008年 / 40卷 / 12期

关键词：

Heat pump desiccant; Self regeneration; Dehumidification; Thermal comfort; VRV;

D O I：

10.1016/j.enbuild.2008.06.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The variable refrigerant volume (VRV) air conditioning system needs to be operated in conjunction with a ventilation system, because the VRV system cannot provide any fresh air. The common ventilation unit used with the VRV system is the heat recovery ventilation (HRV) unit. In this study, a new ventilation unit, a self-regenerating heat pump desiccant (HPD) unit, was introduced and the characteristics of the HPD unit was experimentally investigated over a wide range of operating conditions in a field performance test. In addition, the energy saving contribution of the HPD and HRV units to the VRV system was compared. It was found that the HPD unit maintained the target indoor humidity ratio of 10 g/kg throughout the cooling season resulting in a better indoor thermal comfort than the HRV unit. Besides, it was found that the outdoor unit of the VRV system consumed 26.3% less energy for the operation in conjunction with the HPD unit as compared to the operation in conjunction with the HRV unit. (C) 2008 Elsevier B.V. All rights reserved

引用

页码：2141 / 2147

页数：7

共 29 条

[21] Thermal performance of a novel air conditioning system using a liquid desiccant
Oliveira, AC
Afonso, CF
Riffat, SB
Doherty, PS
[J]. APPLIED THERMAL ENGINEERING, 2000, 20 (13) : 1213 - 1223
[22] R. American Society of Heating and E. Air-Conditioning, 1992, 551992 ANSIASHRAE
[23] Active desiccant integration with packaged rooftop HVAC equipment
Sand, JR
Fischer, JC
[J]. APPLIED THERMAL ENGINEERING, 2005, 25 (17-18) : 3138 - 3148
[24] *SEMC INC, 2007, REV ACT DES VAP COMP
[25] A review of adsorbents and adsorbates in solid-vapour adsorption heat pump systems
Srivastava, NC
Eames, IW
[J]. APPLIED THERMAL ENGINEERING, 1998, 18 (9-10) : 707 - 714
[26] Application of desiccant wheel to control humidity in air-conditioning systems
Subramanyam, N
Maiya, MP
Murthy, SS
[J]. APPLIED THERMAL ENGINEERING, 2004, 24 (17-18) : 2777 - 2788
[27] Parametric studies on a desiccant assisted air-conditioner
Subramanyam, N
Maiya, MP
Murthy, SS
[J]. APPLIED THERMAL ENGINEERING, 2004, 24 (17-18) : 2679 - 2688
[28] YABU T, 2007, Patent No. 20070240864
[29] Dynamic hygroscopic effect of the composite material used in desiccant rotary wheel
Zhang, X. J.
Sumathy, K.
Dai, Y. J.
Wang, R. Z.
[J]. SOLAR ENERGY, 2006, 80 (08) : 1058 - 1061

← 1 2 3 →