| Floor heating system has the advantages of high efficiency and energy saving, environ-mental protection, health, equilibrium at room temperature, saving space, and so on. And itis relying on its unique advantage of consumers. Also because of this, floor heating systemhas been widely used for the majority of the people. On the floor heating system, has also do-ne a lot of research at home and abroad. However, researching for the safety and the energy-saving of the floor heating system is not perfect. Especially for low temperature hot water fl-oor radiant heating system is proposed in recent years, the500mm coil spacing design madeno calculation. So, this article based on the safety and the energy saving of the floor heatingwere analyzed in detail, more to coil spacing is500mm low temperature hot water floor rad-iant heating system are analyzed in software simulation and numerical calculation.Firstly, this paper introduces the advantages of the floor heating system and the low tem-perature hot water floor radiant heating system, and the structure of low temperature hot wat-er floor radiant heating system are analyzed in detail, carefully explained the effect and the si-ze of the component level in the system. Then, the article also analyze the various factors inf-luence the heat transfer process of low temperature hot water floor radiant heating system, in-cluding the average temperature of the heat medium flowing in the heating coil, the heatingcoil pipe diameter, the thickness of the packed bed, the ground material coefficient of thermalconductivity and heating coil spacing and other factors.Secondly, this article for the safety of the ground material of floor heating has carried onthe detailed analysis and research, common ground material of floor heating is introduced, an-d analyzed the security of all kinds of floor heating floor material, the safety of ground mater-ial of floor heating main consider two aspects of personal safety and environmental protectio-n. Afterwards, Comprehensive factors to select the most suitable for floor heating system ofground material, is the wooden floor. In addition, this article also introduces the commonly us-ed types of heating coils in the low temperature hot water floor radiant heating system. But al-so compared and analyzed the performance of all kinds of heating coil pipe, proved thePERTpipe is more suitable for floor heating system than other heating coil, to be able to reflect itsadvantage more in the use of floor heating.Thirdly, in this article the FLUENT software and fluid numerical calculation method hascarried on the simple introduction, and established a two-dimensional heat transfer mathemati-cal model of low temperature hot water floor radiant heating system after assumptions for thetwo-way model of the system. And introduced the complicated convection heat transfer andradial exchange into boundary conditions. First applied coil spacing is500mm with FLUENT soft ware of low temperature hot water floor radiant heating system are calculated, simulatedcommonly used heating coil as PERT in several different pipe diameter and different bounda-ry conditions of heat transfer problems, and to solve the numerical solution of temperaturefield and heat flow field. Analyze the floor surface and the lower surface of the relationshipbetween heat and various factors, and then proves the coil spacing is500mm of low temper-ature hot water floor radiant heating system can meet the requirements of the indoor heating,to achieve the purpose of heating with a low energy consumption.At last, through the calculation analysis shows that500mm coil spacing of low tempera-ture hot water floor radiant heating system can realize uniform heat heating floor surface, toachieve the purpose of indoor comfort heating. Finally, under the condition of guarantee safeand comfortable to use floor heating system, get a floor heating system energy saving model. |
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