A Standard of Floor Heating System for Moderate Temperature Burns and Development of Estimated Floor Contact Temperature Instrument for the Inspection of System

本报告的目的是：1)估计安全的地板温度，以防止地板供暖系统的中温灼伤；2)研制一种地板-皮肤接触温度估算仪；3)制定地板供暖系统评估的标准代码。首先，在环境舱中测试地板表面温度和与地板接触的皮肤温度，男性受试者坐在或躺在地板上1-6小时。在检查过程中，系统的水温被设置在60-86℃。综上所述，(1)在水温为75℃的6小时实验中，背部的皮肤温度没有保持在40℃以上；(2)受试者的地板温度与厚衣受试者的背部皮肤温度存在较大差异；(3)数值模拟得到的地板表面温度与实测温度吻合较好。其次，研制了地板-皮肤接触温度估计仪EFCT(Estimated Floor Contact Temperatuer)。

The purpose of this report is 1) to estimate a safe floor temperature to prevent moderate temper ature burns by the floor heating system, 2) to develop a estimating instrument of the floor-skin contact temperature, and 3) to make a standard code of the assesment on the floor heating system. At first, floor surface temperatures and skin temperatures in contact with floor were examined at an environmental chamber male subjects sat or lay on the floor for 1-6 hours. The system's water temperatures were set at 60-86 ℃ during the examination. In conclusion, (1) the skin temperatures of the back do not keep over 40 ℃ during the 6 hours experiment in which water temperature were set at 75 ℃ ; (2) there is considerable difference between the floor temperatures under the sub ject and the back skin temperatures of subjects with thick clothes ; (3) floor surface temperatures estimated by numerical simulation (FEM) agree well with measured temperatures. Second, the estimating instrument of the floor-skin contact temperature, named EFCT (Estimated Floor Contact Temperatuer) instrument, is developed.