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Título:
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New equipment for testing steady and transient thermal performance of multilayered building envelopes with PCM
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Autor/a:
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Gracia Cuesta, Alvaro de; Barreneche Güerisoli, Camila; Farid, Mohammed M.; Cabeza, Luisa F.
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Notas:
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Thermal properties of the different building envelopes, such as thermal transmittance in steady state,
heat storage capacity and dynamic thermal responses, must be taken into account during the design
phase of buildings. The evaluation and measurement of these parameters in multilayered samples are
difficult because of the irregular morphology of the used materials and the difficulty in providing the
well-controlled environment needed for the measurements. A new equipment has been designed to
measure the thermal response and heat capacity of composite walls of different materials simulating
real building envelopes.
The equipment presented in this paper was used to test the improvement in the thermal response of
a building envelope due to the incorporation of PCM. This study is focused on wood structural panels
attached to a gypsum board, which is either impregnated or not with PCM. The four edges of the composite
sample are properly insulated to ensure one-dimensional heat flow. The two faces of the sample
are exposed to controlled environments heated and cooled by copper coils with thermo stated water
supplied by water baths. The measured surface heat fluxes at both surfaces of the sample and temperature
distribution in the sample provide accurate assessment to thermal mass and dynamic response of
the composite wall, while the steady state measurements provide an accurate estimate of its effective
thermal transmittance.
The work partially funded by the Spanish government (ENE2008-06687-C02-01/CON) and the European Union (COST Action COST TU0802 and project EFFIBUILDINGS - FP7-PEOPLE-2009-IIF -/- 253914) |
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Materia(s):
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-Material testing
-Building sector
-Thermal transmittance |
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Derechos:
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(c) Elsevier, 2011
info:eu-repo/semantics/restrictedAccess |
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Tipo de documento:
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article
publishedVersion |
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Editor:
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Elsevier
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Compartir:
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