The DIAPR: A High-Pressure, High-Temperature Solar Receiver
The DIAPR: A High-Pressure, High-Temperature Solar Receiver
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DOI：
10.1115/1.2871853
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发表时间：
1997-02
影响因子：
2.3
通讯作者：
J. Karni;A. Kribus;P. Doron;R. Rubin;A. Fiterman;D. Sagie
中科院分区：
文献类型：
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作者：
J. Karni;A. Kribus;P. Doron;R. Rubin;A. Fiterman;D. Sagie
太阳能中央接收器吸收集中的太阳光，并将其能量传输到工作介质(气体、液体或固体颗粒)，无论是热过程还是热化学过程。各种有吸引力的高性能应用要求太阳能接收器在高温(900-1,500摄氏度)和高压(10-35巴)下提供工质。由于内部接收器的温度可能远高于1000摄氏度，其孔径处的太阳光浓度必须很高(4-8 mW/m{sup 2})，以将孔径大小和再辐射损失降至最低。直接辐照环形加压接收器(DIAPR)是一种体积(直接辐照)加窗空腔接收器，其孔径流量高达10 mW/m{sup 2}。它能够在10-30巴的压力和高达1,300℃的出口温度下提供热气体。该接收器的三个主要创新组件是：由高温陶瓷(例如氧化铝)制成的豪猪吸收器；由熔融二氧化硅制成的Frustum状高压(FLHIP)窗；两级二次聚光器以及KohinOr取光器。本文介绍了DIAPR的设计原理、结构和主要部件，并给出了实验和计算结果的实例。
A solar central receiver absorbs concentrated sunlight and transfers its energy to a working medium (gas, liquid or solid particles), either in a thermal or a thermochemical process. Various attractive high-performance applications require the solar receiver to supply the working fluid at high temperature (900--1,500 C) and high pressure (10--35 bar). As the inner receiver temperature may be well over 1,000 C, sunlight concentration at its aperture must be high (4--8 MW/m{sup 2}), to minimize aperture size and reradiation losses. The Directly Irradiated Annular Pressurized Receiver (DIAPR) is a volumetric (directly irradiated), windowed cavity receiver that operates at aperture flux of up to 10 MW/m{sup 2}. It is capable of supplying hot gas at a pressure of 10--30 bar and exit temperature of up to 1,300 C. The three main innovative components of this receiver are: a Porcupine absorber, made of a high-temperature ceramic (e.g., alumina); a Frustum-Like High-Pressure (FLHIP) window, made of fused silica; a two-stage secondary concentrator followed by the KohinOr light extractor. This paper presents the design principles of the DIAPR, its structure and main components, and examples of experimental and computational results.