A New Variable Refrigerant Flow System Simulation Approach in EnergyPlus

Xiaojie Lin; Hoseong Lee; Yunho Hwang; Reinhard Radermacher; Byungsoon Kim

doi:10.1142/S2010132516500012

A New Variable Refrigerant Flow System Simulation Approach in EnergyPlus

Xiaojie Lin, Hoseong Lee, Yunho Hwang, Reinhard Radermacher, Byungsoon Kim

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Article number	1650001
Journal	International Journal of Air-Conditioning and Refrigeration
Volume	24
Issue number	1
DOIs	https://doi.org/10.1142/S2010132516500012
Publication status	Published - 2016 Mar 1
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 World Scientific Publishing Company.

Keywords

Energy plus
VRF
variable refrigerant flow

ASJC Scopus subject areas

Control and Systems Engineering
Renewable Energy, Sustainability and the Environment
Fluid Flow and Transfer Processes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1142/S2010132516500012

Cite this

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abstract = "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.",

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AU - Lin, Xiaojie

AU - Lee, Hoseong

AU - Hwang, Yunho

AU - Radermacher, Reinhard

AU - Kim, Byungsoon

PY - 2016/3/1

Y1 - 2016/3/1

N2 - 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.

AB - 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.

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A New Variable Refrigerant Flow System Simulation Approach in EnergyPlus

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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