Simulation and optimization of multi-split variable refrigerant flow systems

Simulation and optimization of multi-split variable refrigerant flow systems

The use of a variable refrigerant flow (VRF) is being specified as an alternative solution to centralize HVAC systems in domestic building. This manuscript presents a comprehensive description of the configuration for the indoor and outdoor units of a multi-split VRF system. A case study of a hotel...

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Main Authors: Ali Alahmer, Sameh Alsaqoor
Format: Article
Language:English
Published: Elsevier 2018-12-01
Series:Ain Shams Engineering Journal
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447917300023
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spelling doaj-889c88fee69847fdbf19f739718b67b12021-06-02T05:20:03ZengElsevierAin Shams Engineering Journal2090-44792018-12-019417051715Simulation and optimization of multi-split variable refrigerant flow systemsAli Alahmer0Sameh Alsaqoor1Department of Mechanical Engineering, Tafila Technical University, P.O. Box 179, 66110 Tafila, Jordan; School of Engineering & ICT, University of Tasmania, Private Bag 65, Hobart, TAS 7001, Australia; Corresponding author at: Department of Mechanical Engineering, Tafila Technical University, P.O. Box 179, 66110 Tafila, Jordan. Tel.: +962 798277537.Department of Mechanical Engineering, Tafila Technical University, P.O. Box 179, 66110 Tafila, JordanThe use of a variable refrigerant flow (VRF) is being specified as an alternative solution to centralize HVAC systems in domestic building. This manuscript presents a comprehensive description of the configuration for the indoor and outdoor units of a multi-split VRF system. A case study of a hotel in Amman, Jordan was implemented. The suitable indoor and outdoor units were selected according to heating and cooling load. A sensitivity analysis of the effect of some parameters on heating and cooling loads were analyzed. Finally, the thermal human comfort indices of PMV and PPD were investigated. This study showed that even the main shortcoming of using VRF system due to its high initial cost, but this system is encouraged especially in small places due to its energy efficiency appeal at partial loads, satisfying optimum thermal human comfort, and a good substitute where scarcity of water and achieving more thermal human comfort. Keywords: VRF system, Air conditioning, Cooling, Heating, Human comfort, PMV, PPD, HAP programhttp://www.sciencedirect.com/science/article/pii/S2090447917300023
collection DOAJ
language English
format Article
sources DOAJ
author Ali Alahmer
Sameh Alsaqoor
spellingShingle Ali Alahmer
Sameh Alsaqoor
Simulation and optimization of multi-split variable refrigerant flow systems
Ain Shams Engineering Journal
author_facet Ali Alahmer
Sameh Alsaqoor
author_sort Ali Alahmer
title Simulation and optimization of multi-split variable refrigerant flow systems
title_short Simulation and optimization of multi-split variable refrigerant flow systems
title_full Simulation and optimization of multi-split variable refrigerant flow systems
title_fullStr Simulation and optimization of multi-split variable refrigerant flow systems
title_full_unstemmed Simulation and optimization of multi-split variable refrigerant flow systems
title_sort simulation and optimization of multi-split variable refrigerant flow systems
publisher Elsevier
series Ain Shams Engineering Journal
issn 2090-4479
publishDate 2018-12-01
description The use of a variable refrigerant flow (VRF) is being specified as an alternative solution to centralize HVAC systems in domestic building. This manuscript presents a comprehensive description of the configuration for the indoor and outdoor units of a multi-split VRF system. A case study of a hotel in Amman, Jordan was implemented. The suitable indoor and outdoor units were selected according to heating and cooling load. A sensitivity analysis of the effect of some parameters on heating and cooling loads were analyzed. Finally, the thermal human comfort indices of PMV and PPD were investigated. This study showed that even the main shortcoming of using VRF system due to its high initial cost, but this system is encouraged especially in small places due to its energy efficiency appeal at partial loads, satisfying optimum thermal human comfort, and a good substitute where scarcity of water and achieving more thermal human comfort. Keywords: VRF system, Air conditioning, Cooling, Heating, Human comfort, PMV, PPD, HAP program
url http://www.sciencedirect.com/science/article/pii/S2090447917300023
work_keys_str_mv AT alialahmer simulationandoptimizationofmultisplitvariablerefrigerantflowsystems
AT samehalsaqoor simulationandoptimizationofmultisplitvariablerefrigerantflowsystems
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