【作者】 宗杰；

【导师】 涂光备；

【作者基本信息】 天津大学 ， 供热、供燃气、通风与空调工程， 2003， 硕士

【摘要】 地板辐射采暖作为一种舒适、节能的采暖方式，早在20世纪初就应用于工程实际，随着塑料管材的研制以及施工工艺的改进，地板辐射采暖方式的优越性进一步得以体现，得到更广泛的应用。但如何更好的对这种采暖方式加以利用呢，本文从地板辐射采暖调节方式的角度加以研究。地板辐射采暖系统的调节方式相对于常规采暖的调节方式有一定的差别，由于在地板辐射采暖房间中，地板可视为一个热源，同时又是一个大的蓄热体，对供水温度和流量的调节无法在室温上得到很快的体现，地板辐射采暖房间的热延迟特性使得对室温的控制变得复杂，因而需要深入地对地板辐射采暖系统的调节性能加以研究。本文建立了地板辐射采暖房间的数学模型，通过实验测量房间稳态传热时的空气、地板、墙体和顶板的温度分布，计算了各表面之间的对流、辐射换热关系，对换热表面进行合理简化，根据简化公式得出地板表面温度、非加热表面平均温度和对流、辐射传热量之间的数学关系。本试验采用不同的控制方式，测试得到地板辐射采暖试验房间的室内空气温度、地板表面以及墙体表面温度的波动情况，分析研究了室外空气温度变化、房间围护结构情况、地板蓄热性能对室内空气温度及各壁面温度的影响，总结得出温度的变化规律，对比分析了地板辐射采暖房间的几种调控方式------以室内空气温度为基准的启停控制、以地板表面温度为基准的启停控制和同时控制室内空气温度和地板表面温度的双参数控制，研究了在室外温度波动的情况下，采用启停控制的可行性，为以后地板辐射采暖系统的运行调节提供了很好的参考。更多还原

【Abstract】 The radiant floor heating system (RFH) has the advantage of suitable feeling and energy saving. In the twenty century, the RFH has been applied in many buildings. Following the development of plastic pipes and the improvement of building technology, the RFH has more applications. But how to use this system more efficiently. My article focuses on one point of this problem----the regulation of the RFH. Because the floor is the hest resourse and the thermal storage body in the RFH, the normal regulation methods have uncertain effect on the indoor air temperature stablility. So study on the regulation methods of RFH is very necessary.Through establishing the model of radiant floor heating systems, and measuring the temperature of indoor air, floor surface, wall surface and ceiling surface in the stable condition, the article calculate the heat transfer between the inside surfaces. By reducing a multisurface enclosure to a two-surface approximation, simple formulas are used to get the relationships among the floor surface temperature, average unheated surface temperature and the heat transfer. The experiment used different control strategies to get the temperature fluctuation of the indoor air, slab surface and wall surface in a radiant floor heating system (RFH). Analyses the effect of outdoor temperature, enclosure structures and heating storage characteristic that influence the indoor air temperature and the enclosure temperature, and compares several control strategies about RFH――air-based on/off control,slab-based on/off control,and two parameter on/off control. Then we can get relative performance of the temperature fluctuation. This can be very helpful to the regulation ofRFH systems in fact.更多还原