A New Variable Refrigerant Flow System Simulation Approach in EnergyPlus

被引：9

作者：

Lin, Xiaojie ^{[1
]}

Lee, Hoseong ^{[1
]}

Hwang, Yunho ^{[1
]}

Radermacher, Reinhard ^{[1
]}

Kim, Byungsoon ^{[2
]}

机构：

[1] Univ Maryland, Ctr Environm Energy Engn, 3157 Glenn L Martin Hall Bldg, College Pk, MD 20742 USA

[2] LG Elect, Syst Air Conditioning Lab, 327-23 Gasan Dong, Seoul 153802, South Korea

来源：

INTERNATIONAL JOURNAL OF AIR-CONDITIONING AND REFRIGERATION | 2016年 / 24卷 / 01期

关键词：

Energy plus; variable refrigerant flow; VRF;

D O I：

10.1142/S2010132516500012

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A variable refrigerant flow (VRF) system is widely applied to build air conditioning systems. Literature review of previous VRF modeling studies was conducted, and it was found that the current calculation approach in EnergyPlus can result in more than 20% deviation in both heat transfer capacity and power consumption. Therefore, a new VRF model is proposed in this study, which includes an improved thermal zone distribution concept, new indoor unit types, and a new thermodynamic model. The developed model is validated with experimental data within 10% in heat transfer capacity and 5% in power consumption. Based on the proposed model, the operation control strategy is also discussed. The results show that the proposed model could also simulate the current control strategy in the VRF system.

引用

页数：15

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