Radiometric and thermal properties of, and testing methods for, greenhouse covering materials

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dc.contributor.author Papadakis, G en
dc.contributor.author Briassoulis, D en
dc.contributor.author Scarascia Mugnozza, G en
dc.contributor.author Vox, G en
dc.contributor.author Feuilloley, P en
dc.contributor.author Stoffers, JA en
dc.date.accessioned 2014-06-06T06:44:20Z
dc.date.available 2014-06-06T06:44:20Z
dc.date.issued 2000 en
dc.identifier.issn 00218634 en
dc.identifier.uri http://dx.doi.org/10.1006/jaer.2000.0525 en
dc.title Radiometric and thermal properties of, and testing methods for, greenhouse covering materials en
heal.type other en
heal.identifier.primary 10.1006/jaer.2000.0525 en
heal.publicationDate 2000 en
heal.abstract In this paper, the most critical physical properties for the greenhouse covering materials are reviewed. The physical properties considered include the radiometric properties (transmissivity, reflectivity and absorptivity) over several radiation bands and also the K-value (the overall heat transfer coefficient). Only a few standard methods for testing these physical properties of covering materials for greenhouses exist. Usually, some of the testing methods used for plastics in general, are also applied to greenhouse covers despite important functional differences. These testing methods are reviewed with regard to their suitability for application to greenhouse covering materials. Also, reported values of the most important physical properties of greenhouse covering materials are presented and reviewed. The values presented are found to vary considerably among the materials considered. These variations are attributed mainly to the testing method employed and also to the type of the material. Existing testing methods are used arbitrarily and technical information is presented in a rather confusing way. Modification of existing testing methods is required because, in most cases, they are insufficient for greenhouse covering materials. Also new testing methods should be elaborated, and specially designed for greenhouse covering materials. © 2000 Silsoe Research Institute. en
heal.journalName Journal of Agricultural Engineering Research en
dc.identifier.issue 1 en
dc.identifier.volume 77 en
dc.identifier.doi 10.1006/jaer.2000.0525 en
dc.identifier.spage 7 en
dc.identifier.epage 38 en

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