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Impact of different improvement measures on the thermal performance of ultra-thin envelopes

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  • Xu, Long
  • Zhang, Wei
  • Wang, Wei
  • Gao, Bo
  • Chen, Mo

Abstract

As a type of ultra-thin material, the general application value of tent is found in Southwest China after an earthquake, but the relevant improvement measures and in-depth studies are relatively less in this area. Therefore, according to the analysis of the thermal equilibrium model, three different comparative experiments using active and passive methods, PV driven ventilation, PCM and Retroreflective material, were selected to improve the indoor environment. Furthermore, the PCM combined with night ventilation was also considered in order to explore the integrated approach for improving the thermal environment of the tent. The field test and analysis of PCM were carried out throughout the year, and the application of PCM with ultrathin envelope is comprehensively analyzed. A simulation model of a tent was set up and validated by the test results. The simulation results showed that the energy saving rate is phase change material > ventilation > retro-reflective material. Through the simulation of buildings using phase change materials in five cities, it was found that the energy saving ratio is the best in Kunming at around 80%.

Suggested Citation

  • Xu, Long & Zhang, Wei & Wang, Wei & Gao, Bo & Chen, Mo, 2020. "Impact of different improvement measures on the thermal performance of ultra-thin envelopes," Energy, Elsevier, vol. 203(C).
    • Handle: RePEc:eee:energy:v:203:y:2020:i:c:s0360544220309099
    DOI: 10.1016/j.energy.2020.117802
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    References listed on IDEAS

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    1. Kuznik, Frédéric & Virgone, Joseph, 2009. "Experimental assessment of a phase change material for wall building use," Applied Energy, Elsevier, vol. 86(10), pages 2038-2046, October.
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    1. Ljungdahl, V. & Taha, K. & Dallaire, J. & Kieseritzky, E. & Pawelz, F. & Jradi, M. & Veje, C., 2021. "Phase change material based ventilation module - Numerical study and experimental validation of serial design," Energy, Elsevier, vol. 234(C).
    2. Bruno, Roberto & Bevilacqua, Piero, 2022. "Heat and mass transfer for the U-value assessment of opaque walls in the Mediterranean climate: Energy implications," Energy, Elsevier, vol. 261(PA).

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