Simulation comparison of VAV and VRF air conditioning systems in an existing building for the cooling season

被引：112

作者：

Aynur, Tolga N. ^{[1
]}

Hwang, Yunho ^{[1
]}

Radermacher, Reinhard ^{[1
]}

机构：

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

来源：

ENERGY AND BUILDINGS | 2009年 / 41卷 / 11期

关键词：

VAV; VRF; Air conditioning; Simulation; Comparison; ENERGY-CONSUMPTION; OFFICE BUILDINGS; VOLUME SYSTEMS; PERFORMANCE; REQUIREMENTS; CLIMATES; COMFORT; MODE;

D O I：

10.1016/j.enbuild.2009.05.011

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Performance of two widely used air conditioning (AC) systems, variable air volume (VAV) and variable refrigerant flow (VRF), in an existing office building environment under the same indoor and outdoor conditions for an entire cooling season is simulated by using two validated respective models and compared. It was observed that the indoor temperatures could not be maintained properly at the set temperature by the VAV no-reheat boxes. However, it could be maintained by the VAV boxes with reheat with a significant energy consumption penalty. It was found that the secondary components (indoor and ventilation units) of the VRF AC system promised 38.0-83.4% energy-saving potential depending on the system configuration, indoor and outdoor conditions, when compared to the secondary components (heaters and the supply fan) of the VAV AC system. Overall, it was found that the VRF AC system promised 27.1-57.9% energy-saving potentials depending on the system configuration, indoor and outdoor conditions, when compared to the VAV AC system. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1143 / 1150

页数：8

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