Solar Thermal Characterisation of Micro-Patterned High Temperature Selective Surfaces

Hanyu Cen; Sara Nunez-Sanchez; Ian Bickerton; Neil A Fox; Martin J Cryan

doi:10.1117/1.JPE.10.024503

Solar Thermal Characterisation of Micro-Patterned High Temperature Selective Surfaces

Hanyu Cen, Sara Nunez-Sanchez, Ian Bickerton, Neil A Fox, Martin J Cryan

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Abstract

We present measured optical absorptivity, emissivity, and maximum solar-heated temperatures for micropatterned molybdenum. The molybdenum samples were fabricated using laser micromachining and characterized using an integrating sphere and an infrared microscope. In-air solar simulator-heated temperature results for the molybdenum samples with different microstructures are presented, and COMSOL modeling is then used to predict in-vacuum maximum temperatures. A vacuum chamber was developed to reduce the convection heat loss with a mount designed to minimize conduction loss, and a maximum measured temperature of 413°C was obtained.

Original language	English
Article number	024503
Journal	Journal of Photonics for Energy
Volume	10
Issue number	2
Early online date	18 May 2020
DOIs	https://doi.org/10.1117/1.JPE.10.024503
Publication status	E-pub ahead of print - 18 May 2020

Research Groups and Themes

Photonics and Quantum

Keywords

solar
energy
absorption
heat transfer
molybdenum
micro-patterned

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10.1117/1.JPE.10.024503

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This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Society of Photo-optical Instrumentation Engineers (SPIE) at https://www.spiedigitallibrary.org/journals/Journal-of-Photonics-for-Energy/volume-10/issue-2/024503/Solar-thermal-characterization-of-micropatterned-high-temperature-selective-surfaces/10.1117/1.JPE.10.024503.short . Please refer to any applicable terms of use of the publisher.
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title = "Solar Thermal Characterisation of Micro-Patterned High Temperature Selective Surfaces",

abstract = "We present measured optical absorptivity, emissivity, and maximum solar-heated temperatures for micropatterned molybdenum. The molybdenum samples were fabricated using laser micromachining and characterized using an integrating sphere and an infrared microscope. In-air solar simulator-heated temperature results for the molybdenum samples with different microstructures are presented, and COMSOL modeling is then used to predict in-vacuum maximum temperatures. A vacuum chamber was developed to reduce the convection heat loss with a mount designed to minimize conduction loss, and a maximum measured temperature of 413°C was obtained.",

keywords = "solar, energy, absorption, heat transfer, molybdenum, micro-patterned",

author = "Hanyu Cen and Sara Nunez-Sanchez and Ian Bickerton and Fox, {Neil A} and Cryan, {Martin J}",

year = "2020",

month = may,

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doi = "10.1117/1.JPE.10.024503",

language = "English",

volume = "10",

journal = "Journal of Photonics for Energy",

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TY - JOUR

T1 - Solar Thermal Characterisation of Micro-Patterned High Temperature Selective Surfaces

AU - Cen, Hanyu

AU - Nunez-Sanchez, Sara

AU - Bickerton, Ian

AU - Fox, Neil A

AU - Cryan, Martin J

PY - 2020/5/18

Y1 - 2020/5/18

N2 - We present measured optical absorptivity, emissivity, and maximum solar-heated temperatures for micropatterned molybdenum. The molybdenum samples were fabricated using laser micromachining and characterized using an integrating sphere and an infrared microscope. In-air solar simulator-heated temperature results for the molybdenum samples with different microstructures are presented, and COMSOL modeling is then used to predict in-vacuum maximum temperatures. A vacuum chamber was developed to reduce the convection heat loss with a mount designed to minimize conduction loss, and a maximum measured temperature of 413°C was obtained.

AB - We present measured optical absorptivity, emissivity, and maximum solar-heated temperatures for micropatterned molybdenum. The molybdenum samples were fabricated using laser micromachining and characterized using an integrating sphere and an infrared microscope. In-air solar simulator-heated temperature results for the molybdenum samples with different microstructures are presented, and COMSOL modeling is then used to predict in-vacuum maximum temperatures. A vacuum chamber was developed to reduce the convection heat loss with a mount designed to minimize conduction loss, and a maximum measured temperature of 413°C was obtained.

KW - solar

KW - energy

KW - absorption

KW - heat transfer

KW - molybdenum

KW - micro-patterned

U2 - 10.1117/1.JPE.10.024503

DO - 10.1117/1.JPE.10.024503

M3 - Article (Academic Journal)

VL - 10

JO - Journal of Photonics for Energy

JF - Journal of Photonics for Energy

IS - 2

M1 - 024503

ER -

Solar Thermal Characterisation of Micro-Patterned High Temperature Selective Surfaces

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