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An experimental system for the transient, non-periodic thermal analysis of structural elements

Author

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  • Antonopoulos, K.A.
  • Democritou, F.
  • Vrachopoulos, M.

Abstract

An experimental set-up is described for measurement of the dynamic behaviour of structural elements under transient, non-periodic conditions. It is composed of two insulated test chambers O and I separated by the wall to be tested. The desired outdoor conditions, i.e. any arbitrary temperature variation, are obtained within test chamber O by the use of heating and cooling coils regulated by a computer. Constant temperature is retained within test chamber I, where the indoor conditions are simulated. The computer receives measurements from thermocouples and heat-flow meters and gives correction instructions with 1 min time step. An experiment may last many days. A specially developed computer program controls the whole system. Characteristic measurements of temperatures and heat flows are provided and compared with predictions obtained by solving the same problem numerically.

Suggested Citation

  • Antonopoulos, K.A. & Democritou, F. & Vrachopoulos, M., 1994. "An experimental system for the transient, non-periodic thermal analysis of structural elements," Energy, Elsevier, vol. 19(4), pages 383-395.
    • Handle: RePEc:eee:energy:v:19:y:1994:i:4:p:383-395
    DOI: 10.1016/0360-5442(94)90117-1
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    Cited by:

    1. Vrachopoulos, M.Gr. & Filios, A.E. & Fatsis, A. & Mavrommatis, S., 2008. "Determination of the thermal and cooling needs of the broader region of Athens," Renewable Energy, Elsevier, vol. 33(12), pages 2615-2622.
    2. Antonopoulos, K.A. & Vrachopoulos, M., 1995. "On the inverse transient heat-transfer problem in structural elements exposed to solar radiation," Renewable Energy, Elsevier, vol. 6(4), pages 381-397.

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