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Particle Image Velocimetry Methodology For Calculating The Advective Losses At The Solar Tower For The Gen 3 Concentrated Solar Power System, Guillermo Anaya
Particle Image Velocimetry Methodology For Calculating The Advective Losses At The Solar Tower For The Gen 3 Concentrated Solar Power System, Guillermo Anaya
Mechanical Engineering ETDs
The Falling Particle Receiver (FPR) built by Sandia National Laboratory (SNL) at the National Solar Thermal Testing Facilities (NSTTF) is one of the latest concentrated energy harvesting systems for Concentrated Solar Power (CSP). The FPR system at the NSTTF uses solid particles as both the heat transfer fluid and storage media. This FPR operates by having a gravity-driven particles curtain being irradiated through an open cavity by CSP, provided by a heliostat field. However, during operation plumes of particles being expelled out of the receiver cavity can be observed, resulting in heat losses as well as particle inventory losses. The …
A Novel Imaging Methodology To Estimate Advective Losses From A Concentrating Solar Power Particle Receiver, Jesus Daniel Ortega
A Novel Imaging Methodology To Estimate Advective Losses From A Concentrating Solar Power Particle Receiver, Jesus Daniel Ortega
Mechanical Engineering ETDs
Falling particle receivers (FPRs) such as the one at Sandia National Labs, represent the state-of-the-art Concentrating Solar Power (CSP) technology for energy harvesting. The FPR operates by creating a gravity-driven particle curtain in a receiver that is irradiated by concentrated sunlight from a field of concentrators. The particles are used directly as the heat transfer and storage media for the concentrated energy absorbed. However, during operation, particles can egress through the open aperture of the receiver cavity, resulting in particle-inventory and heat losses from the system. The particle plumes egressing from the cavity present a unique challenge to metrology due …
Performance Improvements For Next Generation Falling Particle Receiver Systems, Nathan R. Schroeder
Performance Improvements For Next Generation Falling Particle Receiver Systems, Nathan R. Schroeder
Mechanical Engineering ETDs
Falling particle receiver (FPR) systems are a rapidly developing technology for concentrating solar power applications. Solid particles are used as both the heat transfer fluid and thermal energy storage media. Through the direct solar irradiation of the solid particles, flux and temperature limitations of tube-bundle receives can be overcome leading to higher operating temperatures and energy conversion efficiencies. Particle residence time, curtain opacity, and curtain stability affect the performance of FPR designs. As the particles fall through the receiver the curtain accelerates, increasing its transmissivity thus decreasing the amount of energy absorbed. Multistage release trough structures catch and release the …