Numerical Simulation And Optimization Of Low-temperature Radiant Floor Heating System

Because of its comfortableness and energy conservation, low-temperature radiant floor heating system is widely applied in housing, guesthouse and so on. CFD methods are used in this paper to study the influence of different system performance parameter to the low-temperature radiant floor heating system, as the current velocity in heating pipe, the temperature of supply-water, the distance of the pipes, the thickness of the heating-floor, pipe diameter and the pipe shape. Through the simulation of temperature field under different system performance parameter, it obtains the temperature distribution of ground, floor and room under each kind of conditions, thus summarizes the basic rule of this heating system. It carries on the thermal comfort appraisal to the low-temperature radiant floor heating system using PMV and PPD. According to the rule which summarized by the value simulation result and the request of human thermal comfort and energy conservation, it gives the corresponding appropriate design and suggestion.