Dish concentrators can produce highly concentrated flux for the operation of an engine, a chemical process, or other energy converter. The high concentration allows a small aperture to control thermal losses, and permits high temperature processes at the focal point. A variety of optical errors can influence the flux pattern both at the aperture and at the absorber surface. Impacts of these errors can be lost energy (intercept losses), aperture compromise (increased size to accommodate flux), high peak fluxes (leading to part failure or life reduction), and improperly positioned flux also leading to component failure. Optical errors can include small scale facet errors (“waviness”), facet shape errors, alignment (facet pointing) errors, structural deflections, and tracking errors. The errors may be random in nature, or may be systematic. The various sources of errors are often combined in a “root-mean-squared” process to present a single number as an “error budget”. However, this approach ignores the fact that various errors can influence the performance in different ways, and can mislead the designer, leading to component damage in a system or poor system performance. In this paper, we model a hypothetical radial gore dish system using Sandia’s CIRCE2 optical code. We evaluate the peak flux and incident power through the aperture and onto various parts of the receiver cavity. We explore the impact of different error sources on the character of the flux pattern, and demonstrate the limitations of lumping all of the errors into a single error budget.
Skip Nav Destination
ASME 2010 4th International Conference on Energy Sustainability
May 17–22, 2010
Phoenix, Arizona, USA
Conference Sponsors:
- Advanced Energy Systems Division and Solar Energy Division
ISBN:
978-0-7918-4395-6
PROCEEDINGS PAPER
A Parametric Study of the Impact of Various Error Contributions on the Flux Distribution of a Solar Dish Concentrator Available to Purchase
Charles E. Andraka,
Charles E. Andraka
Sandia National Laboratories, Albuquerque, NM
Search for other works by this author on:
Julius Yellowhair,
Julius Yellowhair
Sandia National Laboratories, Albuquerque, NM
Search for other works by this author on:
Brian D. Iverson
Brian D. Iverson
Sandia National Laboratories, Albuquerque, NM
Search for other works by this author on:
Charles E. Andraka
Sandia National Laboratories, Albuquerque, NM
Julius Yellowhair
Sandia National Laboratories, Albuquerque, NM
Brian D. Iverson
Sandia National Laboratories, Albuquerque, NM
Paper No:
ES2010-90242, pp. 565-580; 16 pages
Published Online:
December 22, 2010
Citation
Andraka, CE, Yellowhair, J, & Iverson, BD. "A Parametric Study of the Impact of Various Error Contributions on the Flux Distribution of a Solar Dish Concentrator." Proceedings of the ASME 2010 4th International Conference on Energy Sustainability. ASME 2010 4th International Conference on Energy Sustainability, Volume 2. Phoenix, Arizona, USA. May 17–22, 2010. pp. 565-580. ASME. https://doi.org/10.1115/ES2010-90242
Download citation file:
11
Views
Related Proceedings Papers
Related Articles
Optimization of a Point-Focusing, Distributed Receiver Solar Thermal Electric System
J. Sol. Energy Eng (November,1980)
Analysis of Solar-Furnace Performance in Mechanical Testing at Extremely High Temperatures
J. Eng. Power (October,1960)
Experimental Setup of a Laser Diagnostics System for a High-Temperature Solar Receiver/Reactor
J. Sol. Energy Eng (November,1994)
Related Chapters
Understanding the Problem
Design and Application of the Worm Gear
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach
A Novel Soft-Switching Strategy for Switched Reluctance Motor Power Converter
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3