农村传统火炕内置换热器后的热工性能

发布时间：2018-09-08 13:14

【摘要】：为研究农村传统火炕炕面温度的不平衡性,采用实测和模拟的方法研究不加和加换热器之后火炕炕面在一段时间内温度的波动情况、加换热器之后炕面舒适性的改善和火炕在内置换热器后功能上的优势.运用理论数学模型和实测数据拟合的数学模型,采用VB可视化编程语言模拟出炕面在一段时间内的逐时温度以及换热器提供的热水温度,模拟结果与实测部分结果作对照.研究结果表明,火炕内加换热器之后,其热工性能发生了变化,炕头温度过高的现象得到明显改善,炕面温度分布与未加之前更加均匀;同时通过内置换热器能提供一定温度的热水,不仅有效利用了烟气热量,提高了火炕的热舒适性,还为集成采暖系统打下了良好的基础.
[Abstract]:In order to study the imbalance of the temperature of the traditional Kang surface in rural areas, the temperature fluctuation of the Kang surface after adding heat exchanger in a period of time was studied by the method of actual measurement and simulation. After adding heat exchanger, the comfort of Kang surface is improved and the function of heat exchanger is improved. By using the theoretical mathematical model and the mathematical model fitted by the measured data, the hourly temperature of the Kang surface and the hot water temperature provided by the heat exchanger within a period of time were simulated by using the VB visual programming language. The simulation results were compared with some of the measured results. The results show that the thermal properties of the heat exchanger are changed, the phenomenon of excessive temperature at the Kang head is obviously improved, and the temperature distribution on the Kang surface is more uniform than before. At the same time, the built-in heat exchanger can provide hot water at a certain temperature, which not only makes effective use of the heat of flue gas, improves the thermal comfort of the Kang, but also lays a good foundation for the integrated heating system.
【作者单位】：沈阳建筑大学市政与环境工程学院;大连理工大学建设工程学部土木工程学院;
【基金】：国家自然科学基金资助项目(51178074)
【分类号】：TU111;TU832

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