Optimum aperture size and operating temperature of a solar cavity-receiver

Sunshape distributions for terrestrial solar simulations

This report presents detailed information about solar resource data and the resulting data products needed for each stage of a solar energy project, from initial site selection to systems operations. It also contains a summary of solar forecasting and its development throughout the last few years. The U.S. Department of Energy's Solar Energy Technologies Office, project developers, engineering procurement construction firms, utility companies, system operators, energy suppliers, financial investors, and others involved in solar energy systems planning and development will find this handbook to be a valuable resource for the collection and interpretation of solar resource data. This handbook is expected to be used as a reference during each project stage.

/pdf/best-practices-handbook-for-the-collection-and-use-of-solar-4ckplb8al1.pdf

Best Practices Handbook for the Collection and Use of Solar Resource Data for Solar Energy Applications: Second Edition

https://hal-mines-paristech.archives-ouvertes.fr/hal-01184753/document

Best Practices Handbook for the Collection and Use of Solar Resource Data for Solar Energy Applications

High-temperature solar thermochemistry: Production of iron and synthesis gas by Fe3O4-reduction with methane

In high temperature solar energy applications highly concentration optical systems, such as, e.g., parabolic dishes, achieve typical tradition flux densities {gt}2 MW/M{sup 2}. In order to investigate thermo and photochemical reactions at temperatures {gt}1500 K and radiation flux densities {gt}2 MW/m{sup 2} a solar furnace was built at Paul Scherrer Institute (PSI). This furnace is a two-stage concentrator. The first stage is a prefocusing glass heliostat with a focal length of 100 m. The second stage is an highly concentrating parabolic dish with a focal length of 1.93 m. To design experiments to be carried out in the focal region of the parabolic dish, the radiation flux as well as its density distribution have to be known. This distribution is usually measured by radiometric methods. However, these methods are generally rather troublesome because of the high temperatures involved. In this paper the authors present a simple method to estimate the characteristic features of the radiation flux density distribution in the focal region of the concentrator system.

Flux Density Distribution in the Focal Region of a Solar Concentrator System

In this paper we present measurements of the sunshape and investigate its influence on the flux distribution in the solar furnace at Paul Scherrer Institute (PSI) and in parabolic concentrators, both experimentally and by a ray tracing procedure. The influence of the spectral dependence of the sunshape is analyzed. Various sunshapes are compared with the corresponding flux distributions in the two-wtage solar furnace at PSI

M. Schubnell

Papers

Flux Density Distribution in the Focal Region of a Solar Concentrator System

Sunshape and its influence on the flux distribution in imaging solar concentrators