A review of variable refrigerant flow HVAC system components for residential application

Hernandez, Andrew C.; Fumo, Nelson

doi:10.1016/j.ijrefrig.2019.11.005

Cited by 26 publications

(2 citation statements)

References 23 publications

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“…In reaction to zone thermal measurements, this allows the VRF to be changed. Since the cycle in VRF systems is reversible so they can operate as reversible heat pumps, and the cycle can provide heating and/or cooling [38].…”

Section: Split Systemsmentioning

confidence: 99%

A qualitative assessment of integrated active cooling systems: A review with a focus on system flexibility and climate resilience

Elnagar¹,

Zeoli²,

Rahif³

et al. 2023

Renewable and Sustainable Energy Reviews

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Section: Split Systemsmentioning

confidence: 99%

A qualitative assessment of integrated active cooling systems: A review with a focus on system flexibility and climate resilience

Elnagar¹,

Zeoli²,

Rahif³

et al. 2023

Renewable and Sustainable Energy Reviews

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“…In another study, Patel et al [7] reported that VRF could fetch energy savings between 10% and 40%. Regarding VRF system responsiveness, Herdendez [8] reported that responsiveness and sensitivity are related to the quantity of indoor evaporators that are connected to the system. A lot of other works have been done with the VRF system in terms of the system architecture [9][10][11], modeling and simulation [12][13][14][15][16][17][18], and experimental work and field testing [6,[19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Comparison between Variable and Constant Refrigerant Flow Air Conditioning Systems in Arid Climate: Life Cycle Cost Analysis and Energy Savings

Atallah

Tarlochan

2021

Sustainability

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All over the world, there is a call to encourage sustainable energy thinking and implementation. There is an urgent need to consider sustainable solutions in any design projects that are able to reduce energy consumption. In the heating, ventilation, and air conditioning field, the rise of the variable refrigerant flow systems has made big progress. This study presents a life cycle cost analysis to evaluate the economic feasibility of constant refrigerant flow (CRF), and in particular, the conventional ducted unit air conditioning system and the variable refrigerant flow (VRF) system by using detailed cooling load profiles, as well as initial, operating, and maintenance costs. Two operating hours scenarios are utilized and the present worth value technique for life cycle cost analysis is applied to an existing office building located in Qatar, which can be conditioned by CRF and VRF systems. The results indicate that, although the initial cost of the VRF system is higher than that of the CRF system by 23%, the present worth cost of the VRF system is much lower than that of the CRF system at the end of the lifetime due to lower operating costs. There is also a significant energy saving of 27% by using VRF compared to the CRF. The implementation of these results on a national scale will promote the use of sustainable energy technologies such as the VRF system.

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Application of Machine Learning and Artificial Intelligence in Design, Optimization, and Control of VRF Systems

Sohani¹,

Delfani²,

Hosseini³

et al. 2023

Variable Refrigerant Flow Systems

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A review of variable refrigerant flow HVAC system components for residential application

Cited by 26 publications

References 23 publications

A qualitative assessment of integrated active cooling systems: A review with a focus on system flexibility and climate resilience

A qualitative assessment of integrated active cooling systems: A review with a focus on system flexibility and climate resilience

Comparison between Variable and Constant Refrigerant Flow Air Conditioning Systems in Arid Climate: Life Cycle Cost Analysis and Energy Savings

Application of Machine Learning and Artificial Intelligence in Design, Optimization, and Control of VRF Systems

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