Modeling a radiant floor system with Phase Change Material (PCM) integrated into a building simulation tool: Analysis of a case study of a floor heating system coupled to a heat pump

Mazo, Javier; Delgado, Mónica; Marı́n, José Marı́a; Zalba, Belén

doi:10.1016/j.enbuild.2011.12.022

Cited by 118 publications

(33 citation statements)

References 19 publications

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“…Besides direct heating and cooling by using thermal water in the structure, energy might be stored up with a pipe-embedded high-capacitance structure for load shifting. For example, a new style of radiant floor system using PCM (phase change material) was proposed [21]. The results showed nearly 18% savings on the energy consumption compared to a conventional case.…”

Section: Introductionmentioning

confidence: 75%

A thermo-activated wall for load reduction and supplementary cooling with free to low-cost thermal water

Niu

Guo

et al. 2016

Energy

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Section: Introductionmentioning

confidence: 75%

A thermo-activated wall for load reduction and supplementary cooling with free to low-cost thermal water

Niu

Guo

et al. 2016

Energy

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“…The separation of the σ a and σ s coefficients from the extinction coefficient is done using Eqs. (7) and (8), and the results are shown in Fig. 7 for RT27.…”

Section: Absorption (σ a ) And Scattering (σ S ) Coefficientsmentioning

confidence: 96%

“…Furthermore, in order to justify the performance of PCM systems to a wider variety of conditions, modelling approaches are commonly employed [7,8,9]. Consequently, a modelling approach will also be developed to allow the prediction of phase change and radiation performance of PCM-glazed systems, which is currently limited in the literatures.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations of the optical and thermal aspects of a PCM-glazed unit

Gowreesunker

Stanković

Tassou

et al. 2013

Energy and Buildings

109

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This paper reports on the experimental and numerical analysis of the optical and thermal aspects of PCM (Phase Change Material) RT27 when subjected to an irradiation source of energy. The analysis is separated into the thermal and optical characterisation of the PCM using the T-history method and spectrophotometry principles, respectively, and the experimental and numerical performance evaluation of a PCM-Glazed unit. Various relationships describing the variations in the extinction, scattering and absorption coefficients with respect to the liquid fraction/ temperature within the phase change region were developed from the experimental setup, and were validated in a numerical CFD model. The results show that: i) during rapid phase changes, the transmittance spectra from the PCM are unstable, while under stable conditions a visible transmittance value of 90% and 40% are obtained for the liquid and phases, respectively; ii) the radiation scattering effects are more prominent in the solid phase of the PCM, while radiation absorption dominates in the liquid phase; iii) the optical/ radiation performance of PCM can be successfully modelled using the liquid fraction term as the main variable, in a similar way that the enthalpy porosity method is employed for phase change processes; iv) relative to a standard double glazed unit, the addition of PCM improves the thermal mass of the unit during phase change, but depending on specific

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“…This material has been designed for a radiant floor application, similar to that described in [24]. The addition of PCM to the radiant floor slabs increases significantly their thermal storage capacity in the temperature range in which it usually works.…”

Section: Introductionmentioning

confidence: 99%

Fire behaviour of a mortar with different mass fractions of phase change material for use in radiant floor systems

Ibarra

Mazo

Delgado

et al. 2014

Energy and Buildings

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(Laia Haurie), jmazo@unizar.es (Javier Mazo), monica@unizar.es (Mónica Delgado), bzalba@unizar.es (Belén Zalba). AbstractThe present work focuses on the reaction to fire of a cement mortar containing Phase Change Material (PCM), which is embedded in a lightweight aggregate, for buildings. Several samples containing different PCM mass fractions have been prepared and tested in order to study the influence of the quantity of PCM on fire behaviour. The enthalpy-temperature of the PCM curve has been measured using the T-history method, and the effect of the PCM on the thermal behaviour of the cement mortar material has been studied using an experimental setup. With the aim of characterising the reaction of the composite material to fire, various small scale laboratory tests have been carried out, paying special attention to the production of burning drops during combustion, smoke release and flame persistence. Nomenclature FoFourier number HDPE High-density polyethylene

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Modeling a radiant floor system with Phase Change Material (PCM) integrated into a building simulation tool: Analysis of a case study of a floor heating system coupled to a heat pump

Cited by 118 publications

References 19 publications

A thermo-activated wall for load reduction and supplementary cooling with free to low-cost thermal water

A thermo-activated wall for load reduction and supplementary cooling with free to low-cost thermal water

Experimental and numerical investigations of the optical and thermal aspects of a PCM-glazed unit

Fire behaviour of a mortar with different mass fractions of phase change material for use in radiant floor systems

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