Researchers from the UK and China have proposed a new Trough CSP design that reduces cost, land use, and complexity. Instead of moving parabolic mirrors, the receiver pipe is made to move. The fixed mirror, set close to the ground, eliminates shadow gaps between units. This allows closer spacing and improved land utilization. The receiver moves along a circular path to track the sun. Simulations showed best performance when mirrors aligned east-west and tilted to local latitude. This setup maintained a small deviation angle for higher optical efficiency. A prototype using an 850 mm mirror and a 60 mm receiver achieved up to 99% efficiency. Sliding the receiver was lighter and cheaper, while rotation gave better stability. The design removes the need for heavy motors and reduces maintenance. Further tests in the UK and China will focus on heat flow and outdoor performance.
New CSP concept by UK China Finland team shifts motion to receiver
Researchers from the UK, China, and Finland tested a new Trough CSP design with fixed mirrors and a moving receiver to lower land use, cost, and maintenance.
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