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ABAQUES DE DIMENSIONNEMENT D'UN SYSTÉME PARTIELLEMENT SOLAIRE PRODUISANT SIMULTANÉMENT DE L'EAU ET DE L'AIR CHAUDS

1996; Taylor & Francis; Volume: 18; Issue: 3 Linguagem: Francês

10.1080/01425919608914315

1477-2752

Rémi Marie Hubert Élysé Ratobison, Belkacem Zeghmati, Michel Daguenet,

Solar Radiation and Photovoltaics

Résume Summary Un modéle mathe'matique du systéme collecteur de l'énergie solaire et une méthode de dimensionnement sont présentés pour un systeme partiellement solaire produisant simultanément de l'eau et de l'air chauds destinés au traitement de la vanille. Des relations polynomiales et deux groupes d'abaques de dimensionnement du systéme sont donnéls, le premier s'adressant aux concepteurs et le second aux utilisateurs. Vanilla processing requires hot water for mortification and hot air for drying. The present work is concerned with the establishment of simple design tools for solar process heat systems which produces simultaneously hot water and hot air for vanilla processing for Antalaha, Madagascar. The design tool established is presented in the form of charts or empirical relations. More precisely, two groups of design charts intended to the designers and the users respectively, are presented. Intended to designers, the design chart for hot water production relates two dimensionless parameters including the parameters of system, to solar fraction; while for hot air production, it relates to solar fraction as well as the heat saving fraction if the air leaving the dryer is recycled partially. For the users, three charts are proposed: the first includes the drying time and capacity, and the percentage of recycled air; the second is concerned with the drying capacity, the collector area, and the solar fraction relating to both hot water and hot air production; and the third is concerned with drying capacity, collector area, and the fraction of heat saving in case of hot air production subsystem where the air leaving the dryer is partially recycled. MOTS-CLÉS: Energie solaireTransfert de chaleurAbaquesDimensionnementKEY WORDS: Solar energyHeat transferAbacusDimensionment Additional informationNotes on contributorsB. ZEGHMATI IUT, Laboratoire de métrologie des Interfaces Techiques, rue Engel Gros, B.P. 527, 90016 Belfort Cedex-France