The Simulation And Design Of Solar Radiant Floor Heating System

Solar heating mainly contains air heating,low temperature hot water floor radiant heating, heating of the heat pump, as well as many kinds of heating of the composite. Although there are many advantages in hot water floor radiant heating,but judging from the present development and application, it still can’t get away from the influence of the traditional heating concept. In this paper, the main work content: First, we briefly introduce the system we studied, mainly from the system design goal, the structure, principle as well as the equipment parameters of system. Second, according to the principle of heat transfer and energy conservation, we do mathematical modeling on the system and each component. Including modeling the heat Collector, heating tank, as well as the end geothermal coil etc, for the following in preparation for the establishment of the simulation model of the system. Third, using MATLAB/SIMULINK to establish a system simulation model of each component and the system. we are on the system for the calculation of the outlet temperature of each component and the heating room temperature. Last, set up the experimental platform, do experiment, gain The experimental results,compares the simulation results with experimental data,to verify the rationality of the simulation results; making use of the system simulation model to simple design, simulation by setting the different initial conditions, according to the simulation results of different conditions to select the parameters of the system, and the system under different parameters estimation of comprehensive utilization of energy efficiency and finally obtain a reasonable system parameters.Through comparing simulation results with the experimental data,and we got the result that the simulation results are reasonable and can be used as a design reference in solar radiant floor heating system, laid a solid foundation for the development of solar energy heating system. Using the system simulation model for yinchuan area approximately18m2office daytime heating system to carry on the design of the room,the result of reasonable system parameters: system flow is20L/min,turf tube spacing is20cm,supply water for45to50℃, the average temperature range collector installation Angle is54.3°,collector area is6m2and the hot water tank storage capacity of250L, and estimate the parameters in the system under the system of comprehensive utilization of energy efficiency is43%.