The Research For Thermal Transfer Characteristics Of The Central Solar Heating Plant With Seasonal Storage

In today’s society has a wide range of applications of solar energy, its as cleanrenewable energy sources has unique advantages and prospects.Because of theimbalances on its distribution in time, therefore we undertake a study on solar thermalenergy storage, has proposed a buried storage water tank to break the unbalance of thesolar energy distribution over time. Up to now, for that is not sufficient, especiallywhen it comes to underground water tank heat dissipation characteristics. In view ofthis, this article will be converted into natural convection coefficient of thermalconductivity coefficient and using simulation method on simulation of undergroundstorage water tank temperature drop.The major work carried out are as follows:This article analyses theoretical basis of operation of a solar hot water system,proposed physical model and mathematical model of underground hot water tank,theoretically analysis of the characteristics of underground heat storage water tank.Inorder to understand law of underground heat, underground heat in this FLUENTsoftware to simulate, but due to natural convection heat, makes the simulation ofefficiency is very low, therefore the fine is commuted for natural convectioncoefficient of thermal conductivity, improved the efficiency of simulation, andsimulation models, comparison of simulation results, higher reliability of this method.In view of the current underground thermal storage tank underground heat less ofthis article buried on9different volume of the storage water tank and select theinsulation thickness for simulation of various sizes, describes the temperature drop ofunderground heat storage water tank, in Hunan region using the system provided aneffective basis.A further analysis of this article on the findings of the simulation,came to a different volume of the storage water tank in the case of guarantee hot watertemperature optimum thermal insulation thickness of, provide a useful basis for thespecific application.In the final analysis this system of economic and environmental benefits of theSolar seasonal therma storage system on its strong competitiveness, promoting the useof played a strong supporting role.