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）估计地板采暖系统防止中等温度烧伤的安全地板温度; 2）开发地板-皮肤接触温度估计仪器; 3）制定地板采暖系统评估的标准代码。首先，在环境室中，男性受试者坐在或躺在地板上1-6小时，检查地板表面温度和与地板接触的皮肤温度。检查期间，系统水温设定为60-86 ℃。结果表明：（1）在水温为75 ℃的6 h实验中，背部皮肤温度不会超过40 ℃，（2）被试脚下地板温度与厚衣服被试背部皮肤温度有较大差异;（3）数值模拟计算的地板表面温度与实测温度吻合较好。其次，研制了地面-皮肤接触温度估算仪，简称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.