Selection of Working Fluids for Medium Temperature Heat Pipes Used in Parabolic Trough Solar Receivers

Abstract:

According to the methods of focusing,the solar thermal generation can be classified to tower system,parabolic trough system and dish-stirling system. The parabolic solar thermal generation system is an important type of solar thermal utilization. Compared to tower and dish-stirling system,the parabolic trough system has many advantages such as the small concentration ratio,the simple process,the low material requirement and the simple tracking device because of many concentrator on-axis tracking. The parabolic trough system is the lowest cost, least close to commercialization,larger potential system optimization,and the most suitable to large operation in this three thermal generation systems [1,. The parabolic trough system is composed of concentrator and receiver,and the receiver is the key component that uses solar energy to heat working fluids in receiver. Therefore,the key problem is how to make the solar energy transfer to subsequent generation system efficiently and stably.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 62-68
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.62
• Online since: December 2013
• Authors: Yun Liu*, Hong Zhang
• Keywords: Medium Temperature Heat Pipe, Solar Parabolic Trough Receiver, Working Fluid

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