Effectiveness of CFD simulation for the performance prediction of phase change building boards in the thermal environment control of indoor spaces

Gowreesunker, Baboo Lesh; Tassou, S.A.

doi:10.1016/j.buildenv.2012.10.004

Cited by 67 publications

(29 citation statements)

References 27 publications

(41 reference statements)

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“…They found the RNG k-ε model to provide a good accuracy compared to experimental data. [31,32], similar to the simulations in this study. The modifications to the RNG k-ε turbulence model may lead to improvements in the modelling of separating and near-wall flows [33], compared to the standard model.…”

Section: Cfd Tool -Ansys Fluent®supporting

confidence: 88%

Coupled TRNSYS-CFD simulations evaluating the performance of PCM plate heat exchangers in an airport terminal building displacement conditioning system

Gowreesunker

Tassou

Kolokotroni

2013

Building and Environment

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This paper reports on the energy performance evaluation of a displacement ventilation (DV) system in an airport departure hall, with a conventional DV diffuser and a diffuser retrofitted with a phase change material storage heat exchanger (PCM-HX). A TRNSYS-CFD quasi-dynamic coupled simulation method was employed for the analysis, whereby TRNSYS® simulates the HVAC and PID control system and ANSYS FLUENT® is used to simulate the airflow inside the airport terminal space. The PCM-HX is also simulated in CFD, and is integrated into the overall model as a secondary coupled component in the TRNSYS interface. Different night charging strategies of the PCM-HX were investigated and compared with the conventional DV diffuser. The results show that: i) the displacement ventilation system is more efficient for cooling than heating a space; ii) the addition of a PCM-HX system reduces the heating energy requirements during the intermediate and summer periods for specific night charging strategies, whereas winter heating energy remains unaffected; iii) the PCM-HX reduces cooling energy requirements, and; iv) maximum energy savings of 34% are possible with the deployment of PCM-HX retrofitted DV diffuser.

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Section: Cfd Tool -Ansys Fluent®supporting

confidence: 88%

Coupled TRNSYS-CFD simulations evaluating the performance of PCM plate heat exchangers in an airport terminal building displacement conditioning system

Gowreesunker

Tassou

Kolokotroni

2013

Building and Environment

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“…Many numerical and experimental investigations have been carried out in order to evaluate the incorporation of PCMs into building materials [1,4,5]. For instance, PCMs have been incorporated into plastering mortars [6,7], masonry walls [8], tiles [9], concrete [10], asphalt road layers [11] and plaster boards [12]. It is also relevant to highlight selected earlier research work that specifically focused on the incorporation of PCMs in http://dx.doi.org/10.1016/j.conbuildmat.2015.04.031 0950-0618/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Assessing the feasibility of impregnating phase change materials in lightweight aggregate for development of thermal energy storage systems

Kheradmand

Castro-Gomes

Azenha

et al. 2015

Construction and Building Materials

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“…4).The phase change temperature of cooling curve corresponding to the MC18 and MC28, becomes broader and shifts to greater phase change temperature range when compared with heating curve. This may be due to the hysteresis phenomena that lead to different phase change temperatures of melting and freezing, for the corresponding PCM [22].…”

Section: Results Of Pcm Mortar Samplesmentioning

confidence: 99%

Estimation of the specific enthalpy–temperature functions for plastering mortars containing hybrid mixes of phase change materials

Kheradmand

Azenha

2014

Int J Energy Environ Eng

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The use of phase change materials (PCMs) for the building sector is increasingly attracting attention from researchers and practitioners. Several research studies forwarded the possibility of incorporating microencapsulated PCM in plastering mortars for building façades, in pursuit of increased energy efficiency associated with the heat storage capacity of PCM. However, most of these studies are centred in the use of a single type of PCM, which is bound to be more adequate for a given season of the year (e.g. winter or summer) than for all the seasons. The study proposed in this work regards the evaluation of the possibility of using more than one kind of PCM, with distinct melting ranges, here termed as hybrid PCMs, in plastering mortars, to achieve adequately advantageous performance in all seasons of the year. To characterize the PCM, the specific enthalpy and phase change temperature should be adequately measured. The main purpose of this study was to show the conceptual feasibility of combining PCMs in mortars and to evaluate the behaviour of the resulting mortars with differential scanning calorimeter. The results showed that the behaviour of the mortar that contains more than one type of PCM can be predicted through the superposition of effects of the independent PCMs and no interaction occurs between them. The knowledge obtained from the experimental testing established bases for a framework of numerical simulation of real-scale applications, which can be used to ascertain the feasibility of the hybrid PCM concept for decreases in energy consumption of heating/cooling demands in the buildings.

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Effectiveness of CFD simulation for the performance prediction of phase change building boards in the thermal environment control of indoor spaces

Abstract: This paper reports on a validation study of CFD models used to predict the effect of PCM clay boards on the control of indoor environments, in ventilated and non-ventilated

Cited by 67 publications

References 27 publications

Coupled TRNSYS-CFD simulations evaluating the performance of PCM plate heat exchangers in an airport terminal building displacement conditioning system

Coupled TRNSYS-CFD simulations evaluating the performance of PCM plate heat exchangers in an airport terminal building displacement conditioning system

Assessing the feasibility of impregnating phase change materials in lightweight aggregate for development of thermal energy storage systems

Estimation of the specific enthalpy–temperature functions for plastering mortars containing hybrid mixes of phase change materials

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