1. 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): doi: /
Figure Legend:
Macrofocal parabola reflecting one set of edge rays tangentially to the receiver [3]

2. 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): doi: /
Figure Legend:
Cross section of the helmet concentrator proposed by Miñano and coworkers [5]

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): doi: /
Figure Legend:
Proposed PmTC geometry compared to the LS3/Eurotroughparabola

4. 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): doi: /
Figure Legend:
PmTC design method explanation (not at scale)

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): doi: /
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

6. 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): doi: /
Figure Legend:
Angle transmission curve comparison

7. 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): doi: /
Figure Legend:
Ray-tracing results of collimated beams having incidence angles of 0.7 deg and 0.1 deg

8. 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): doi: /
Figure Legend:
Secondary concentrator manufactured by partially mirroring the glass tube

9. 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): doi: /
Figure Legend:
External secondary concentrator and commercial evacuated receiver