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建立了槽式太阳能聚光集热器单侧吸收高热流密度的传热数学模型.该传热数学模型将金属吸热管壁面所能接受到的非均匀热流简化为矩形分布,考虑了金属吸热管管壁的周向导热,选取Dudley的试验数据验证了传热数学模型的可靠性并分析了影响集热器传热特性的主要因素.通过Fluent软件研究了槽式太阳能聚光集热器金属吸热管的周向温度分布规律.结果表明:该传热数学模型具有一定可靠性;流体温度、太阳辐射强度和流体体积流量是影响集热器管内换热特性和管壁周向温度分布的主要因素.
A heat transfer mathematical model of single-side absorption high heat flux density of trough solar concentrator was established. The heat transfer mathematical model simplified the non-uniform heat flow acceptable to metal heat absorption wall to rectangular distribution, The thermal conductivity of the wall of the heat pipe was chosen as the experimental data to verify the reliability of the heat transfer mathematical model and to analyze the main factors that affect the heat transfer characteristics of the heat collector.Using Fluent software to study the solar collector concentrator The results show that the heat transfer mathematical model has certain reliability. Fluid temperature, solar radiation intensity and fluid volume flow affect the heat transfer characteristics and the circumferential temperature distribution of the pipe wall The main factor.