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A novel prefabricated radiant cooling panel with air layer which has uniform surface temperature distribution is proposed in order to improve the performance of radiant cooling ceiling. The purpose of this study is to research the influence of the thickness of air layer and chilled inlet water temperature on the surface temperature and cooling capacity of this panel using numerical simulation. A simplified mathematical heat transfer model using CFD technology is developed for the numerical simulation of fluid-flow and heat transfer inside the 3-D radiant panel. The simulation results of prefabricated radiant panel are in good agreement with the value of experimental results. The simulated results demonstrated that the novel prefabricated radiant ceiling cooling panel has the potential of condensation control due to natural convection in the air layer. Cooling capacity of ceiling panel decreases with increase of air layer thickness and supply water temperature.
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Details
- Original title: Numerical simulation for heat transfer performance of a prefabricated ceiling radiant cooling panel with air layer.
- Record ID : 30026804
- Languages: English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Publication date: 2019/08/24
- DOI: http://dx.doi.org/10.18462/iir.icr.2019.1808
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Indexing
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Themes:
Other air-conditioning equipment;
Heat transfer - Keywords: Radiative cooling; Prefabricated panel; CFD; Heat transfer; Air; Cooling capacity; Simulation; Ceiling; Material; Thickness
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