技术中心

地板辐射供暖系统热工性能实验研究【英文篇名】 Experiment of thermodynamic properties of floor panel heating systems 【作者中文名】 王英辉; 涂光备; 李建兴; 刘树森; 宗杰; 袁哲宁; 李江; 黄保民; 【作者英文名】 By Wang Yinghui; Tu Guangbei; Li Jianxing; Liu Shusen; Zong Jie; Yuan Zhening; Li Jiang and Huang Baomin Tianjin University; Tianjin; China; 【作者单位】 天津大学; 【文献出处】 暖通空调, Hv 热工性能; 散热量; 水流量; 计算对数温差; 计算公式; 【英文关键词】 floor panel heating; thermodynamic properties; heat release; water flow rate; calculating logarithmic temperature difference; calculation formula; 【摘要】 基于对采用PP B管材、等密度双回型铺设方式的低温地板辐射供暖系统的实验研究 ,得到该系统散热量与流量及供水温度关系的热工特性曲线 ,发现随着流量的增加 ,散热量对管路内平均流速的变化率呈减小趋势。通过与传统柱型散热器热工特性对比及实验数据拟合 ,给出了供水温度为 30～ 60℃、水系统流量为 0 .0 3～ 0 .60m3/h时 ,该系统散热量的计算公式 ,并验证了公式的有效性。 【英文摘要】 Based on the experimental study on the equal spacing and two-pass style system with PP-B pipes, obtains the curves reflecting the relation between the heat release, water flow rate and water supply temperature, and finds that the larger water flow rate is, the less variation of heat release with mean water flow velocity in the pipes is. Through the thermodynamic properties comparison with those of traditional column radiators and experimental data fitting, provides the calculation formula of the heat releas...