Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Macrofocal parabola reflecting one set of edge rays tangentially to the receiver [3]

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Cross section of the helmet concentrator proposed by Miñano and coworkers [5]

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Proposed PmTC geometry compared to the LS3/Eurotroughparabola

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: PmTC design method explanation (not at scale)

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Dependency of the net aperture and the ratio C/Cmax with the glass tube radius and the half angle of acceptance for a fixed receiver radius of 35 mm

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Angle transmission curve comparison

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Ray-tracing results of collimated beams having incidence angles of 0.7 deg and 0.1 deg

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: Secondary concentrator manufactured by partially mirroring the glass tube

Date of download: 12/20/2017 Copyright © ASME. All rights reserved. From: Optical Analysis of a Two Stage XX Concentrator for Parametric Trough Primary and Tubular Absorber With Application in Solar Thermal Energy Trough Power Plants J. Sol. Energy Eng. 2016;138(4):041002-041002-6. doi:10.1115/1.4032944 Figure Legend: External secondary concentrator and commercial evacuated receiver