Experimental and Simulation Study on Wind Affecting Particle Flow in a Solar Receiver

Document Type

Article

Publication Date

2-2010

Publication Title

Solar Energy

Volume

84

Issue

2

First page number:

263

Last page number:

270

Abstract

The solid particle receiver (SPR) is a direct absorption central receiver that can provide a solar interface with thermal storage for thermo-chemical hydrogen production processes requiring heat input at temperatures up to 1000 °C. In operation, a curtain made up of approximately 697 μm ceramic particles is dropped within the receiver cavity and directly illuminated by concentrated solar energy. Since the SPR has an open aperture, the flow may be disturbed by high ambient winds. Therefore, the objective of this study was to gain insight into the wind effect on the curtain. Experiments were conducted to understand the wind influence on the particle flow and loss. The experimental results showed that winds from certain angles of the attack could cause a critical loss of particles. A MFIX simulation model was developed to validate the experimental results and observation. The simulation has provided us with better understanding on the wind effects.

Keywords

Air flow; Bulk solids flow; Energy storage; Heat storage; Hydrogen as fuel; Solar energy; Solid particle receiver (SPR); Wind effect; Winds

Disciplines

Aerodynamics and Fluid Mechanics | Energy Systems | Engineering | Fluid Dynamics | Mechanical Engineering | Oil, Gas, and Energy | Sustainability

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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