Analysis of the Floor Heat Storage and Release During an Intermittent In-Slab Floor Heating Process

摘要

In this paper, the floor heat storage in the preheating period and the heat release in the intermittent period are studied during an Intermittent in-slab floor Heating process. The influence of design and operating parameter which are space between pipes, thickness of the filling layer, and pipe water temperature on the floor heat storage and heat release are obtained by using numerical simulation techniques. The relationship between intermittent time and preheating time is also obtained. The research results show that the biggest effect on the preheating time is the space between pipes in the preheating time. In the intermittent period, 2 h later, the two-dimensional heat transfer process can be considered as one-dimensional vertical heat transfer process, and the thickness of the filling layer has relatively big effect on the heat release time.