Heliostat aiming strategies for arbitrary flux profiles for high temperature gas-based receivers
SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy SystemsAIP Conference Proceedings(2020)
Abstract
High temperature gas-based receivers are seen as one potential path toward achieving the next generation of concentrated solar power tower systems. A key challenge associated with high temperature, high pressure heat transfer fluids is the lifetime of receiver containment materials. Achieving the desired lifetime while also designing an efficient receiver requires implementation of unique flux profiles, tailored to place high fluxes at cold fluid injection points. An aimpoint selection methodology was developed in the present study to allow user-defined flux profiles to be prescribed for a receiver. The methodology was implemented in NREL's open-source software SolarPILOT, modifying the existing "image size priority" aimpoint strategy. A case study for a tubular gas-based receiver is presented, examining the effect of various parameters on the ability to replicate the desired flux profile.
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Key words
arbitrary flux profiles,gas-based
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