ACTIVE SOLAR AGRICULTURAL GREENHOUSES. THE STATE OF THE ART

Abstract

Abstract The stale of the art on the application of active solar systems for greenhouse heating is presented. Fifty three active solar agricultural greenhouses installed all over the world are reviewed. The identified systems are classified according to the used technology. The various used collecting systems as well as the coupled storage materials are investigated and their characteristics are analyzed. The performance of the various systems is presented. Problems related to technical and economical impact of the solar system are also discussed. KEY WORDS: GreenhousesActive solarCollectors