コイル管を用いた太陽熱キャビティレシーバーのモデル  [in Japanese] A model of a solar cavity receiver with coiled tubes  [in Japanese]

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Abstract

<p>A model of a solar cavity receiver using helically coiled tubes as heat absorber is developed. The receiver geometry of the model mimics that of an experiment for a Cross Linear concentrating system, although the model has a potential for application to the same type of receivers. From solar flux distribution incident on the inner walls of the receiver, which is obtained from optical simulation, absorbed flux distribution is derived. Ignoring the convective and conductive heat losses from the cavity, temperature distribution of the coiled tubes and the heat transfer fluid flowing within them in the steady state is calculated. Parameters determining the performance of the receiver, such as the outlet temperature, the maximum temperature of the coiled tubes, the radiative heat loss and the receiver efficiency, are assessed as functions of the flow rate of the heat transfer fluid. As the flow rate decreases, the above two temperatures and the radiative heat loss increase, while the receiver efficiency decreases.</p>

Journal

  • The Proceedings of Mechanical Engineering Congress, Japan

    The Proceedings of Mechanical Engineering Congress, Japan 2017(0), J0540103, 2017

    The Japan Society of Mechanical Engineers

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