Research Of Phase Change Thermal Energy Storage Floor Heating System Based On Solar Energy

In this topic, the solar energy during the day for phase change floor heating provide heat source, and at the same time will be part of heat stored in phase change materials for night room used heating. Focus on the winter in the northeast, how in the sun radiation intensity mild conditions to realize the indoor heating; By comparing the concrete sensible heat energy storage floor heating temperature distribution of indoor, the influence of phase change energy storage floor of the outstanding performance characteristics and advantages of the exothermic storage; By shenyang construction university the original construction headquarters, for example, a heating set energy storage technology and phase change solar technology, to realize the building energy conservation and emission reduction, and improve the indoor thermal comfort of new way forward.To reduce the energy consumption and puts forward in the solar energy winter mild conditions for water supply realize preheating, restart the store hot water tank electric heating device will again water heating to heating temperature. Analyses the vacuum tube collectors svstem performance and the thermal efficiency of the structure performance, in the theoretical study basis, to the vacuum tube collectors on the thermal efficiency of the measured, Analysis of the collector efficiency as the average62.47%, on the basis of low efficiency, just in the12at noon reaches maximum50.1%; If regardless of the heat loss, the solar heating system storage quantity of heat during the day for58514.75KJ, in electrical heating the help, and can satisfy the indoor thermal load demand, and56709.31the quantity of heat of existing KJ regenerative energy storage material.Through the theory research and ANSYS finite element simulation analysis, a two-dimensional heat transfer model, and concludes that the hot water heating floor of phase change energy storage residualenergy storage.Based on this, the phase change materials to the DSC test, making the latent heat energy storage floor module and phase change thermal energy storage concrete show floor module, using the method of the contrast between two energy storage heating means two room under the palisade structure of the indoor air temperature distribution and characteristics. Through, the tests, we can draw the conclusion:phase change floor room temperature fluctuations smaller, and the comfort higher in the hot water heating stop after7when I was young, indoor temperature is still keep in about16℃; And the concrete floor heating room temperature attenuated fast, within three hours after release, room temperature can’t reach an average air temperature indoor design standards.