Development of a Receiver Evaluation System Using 30 kWth Point Concentration Solar Simulator
Development of a Receiver Evaluation System Using 30 kWth Point Concentration Solar Simulator
复制标题
DOI：
10.1016/j.egypro.2015.03.058
复制
发表时间：
2015-05
期刊：
影响因子：
--
通讯作者：
Mitsuho Nakakura;M. Ohtake;K. Matsubara;K. Yoshida;Hyun Cho;T. Kodama;N. Gokon
中科院分区：
文献类型：
--
作者：
Mitsuho Nakakura;M. Ohtake;K. Matsubara;K. Yoshida;Hyun Cho;T. Kodama;N. Gokon
点集中接收器评估系统是使用世界一流的30千瓦19弧氙灯光源开发的。该系统包括接收器单元、热交换器、鼓风机、冷却器和光源。通过冷却水和排出空气的焓升来精确测量空气吸收的热功率。使用碳化硅蜂窝进行实验测试，以实现560 ° C的高空气温度。根据孔径的功率，接收器的效率为40%至80%。采用双元胞法对该装置进行了三维数值模拟，得到了详细的流场和温度场信息。这成功地再现了接收器的固体和流体部分之间的热不平衡。数值模拟的空气出口温度和效率与实验结果一致。从接收器顶面上方的广阔空间抽吸空气。所采用的模拟模型与自由流被证实是必不可少的评估开环接收器。
The point-concentration receiver evaluation system was developed using the world class 30 kWth light source of 19 arc xenon lamps. The system comprises of a receiver unit, heat exchanger, blower, chiller and light source. Precise measurement of the thermal power absorbed by air was performed by the enthalpy rise of the coolant water and that of the exhausted air. The experimental test was performed using silicon carbide honeycomb in order to achieve a high air temperature of 560 °C. The efficiency of the receiver, based on the power of the aperture, was 40% to 80%. A three-dimensional simulation based on the dual cell approach was made to reveal detailed information of the flow and temperature fields. This successfully reproduced the thermal nonequilibrium between the solid and fluid parts of the receiver. The air exit temperature and efficiency of the numerical simulation were consistent with that determined experimentally. Air was suctioned from the broad space above the receiver top surface. The adopted simulation model with the free stream was confirmed to be essential for evaluating an open loop receiver.