Abstract
Pipe-embedded concrete radiant floor is widely used for air-conditioning by mainly radiant heat transfer duo to its high energy efficiency and the potential for using low-grade energy source. In this study, two-dimensional frequency-domain finite-difference (FDFD) models are built to predict the frequency thermal responses of pipe-embedded concrete radiant floors with insulations of different thicknesses. Corresponding CFD models are built to validate the accuracy of the developed FDFD models. The result shows the predictions by the FDFD model and CFD model may agree very well in the frequency range of concern. The effects of insulation thickness on the thermal responses of pipe-embedded concrete radiant floors are also analyzed by using the validated FDFD models.
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