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暖通空调杂志社>期刊目次>2018年>第12期

太阳能蓄热水池传热特性模拟研究

Heat transfer characteristic simulation of solar heating reservoirs

徐博荣[1] 刘卫[1] 李博峰[2]
[1]陕西省建筑设计研究院有限责任公司 [2]蓝色海洋太阳能有限公司

摘要:

以西藏某产业园太阳能供暖系统设计为例,介绍了太阳能供暖系统集热板面积及蓄热水池容积的计算。基于有限元分析法建立了蓄热水池三维非稳态传热物理、数学模型,并利用Matlab软件进行编程,对蓄热水池蓄热、取热和蓄热-取热3种运行工况下水池温度场及水池水温的变化规律进行了分析。通过数值模拟对蓄热水池设计进行了优化。研究结果可为太阳能供暖系统的实际应用及发展提供参考。

关键词:太阳能供暖,蓄热水池,传热特性,数学模型,蓄热,取热,温度场

Abstract:

Taking the solar heating system design of an industrial garden area in Tibet as an example, presents the calculation method of the heat collecting plate area and the thermal storage tank volume of the solar heating system. Based on the finite element analysis, sets up a physical and mathematical model of three-dimensional unsteady heat transfer of a heating reservoir, and analyses the reservoir temperature field and water temperature change rules under the three operation conditions, such as heat storage, heat extraction, heat storage-extraction, using Matlab software. Optimizes the heating reservoir design by numerical simulation. The study results provide references for application and development of solar heating system.

Keywords:solarheating,heatingreservoir,heattransfercharacteristic,mathematicalmodel,heatstorage,heatextraction,temperaturefield

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