<title>Options For Solar Thermal Conversion</title>

Abstract

This article outlines the impetus and form for one of the research tasks to be undertaken at the Solar Energy Research Institute. Two options, the high temperature option and the intermediate temperature option, are usually specified for solar energy development. Evidence is presented which supports the need for immediate research into the intermediate temperature, supplementary source role for solar thermal power in the United States. Particularly promising is a technological, approach which will match industrial process heating demands to currently available solar concentrating collector systems. The impact appears to be strong, with 19% of U.S. energy input falling at temperature demand levels less than 1770 C (3500 F). A detailed industrial process heat data base is to be assembled and matched to the system performance of major concentrator types. Solar concentrator characteristics are generally outlined and areas for immediate improvement suggested. An example of the matching of a concentrator system to a specific task is included.