Abstract
This study investigates experimentally the performance of radiant floor cooling modules. Different radiant cooling modular units with embedded chilled water piping were tested for cooling performance. The effects of pipe pitch and also the effects of extended fins were tested. The results of the experiments show that the modular design of radiant floor used has low heat resistance between the chilled water and the radiant cooling surface. Mean radiant temperature was analyzed to measure the cooling comfort performance. An increase of radiant cooling surface area was found to be important for effective radiant heat exchange. Moreover, the larger the temperature difference between the radiant surface and the walls, higher rate of radiant cooling can be achieved. The cooling intensity in terms of per unit area was tested to be as high as 60 W/m2. In conclusion the radiant floor cooling modular units are effective to remove sensible heat and provide comfort cooling. In practice it can be supplemented with lower humidity outdoor air supply for the removal of latent heat.
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