THERMAL STUDY OF TRANSFER IN AN EXCHANGER MADE UP OF TWO CYLINDRICAL TUBES PLACED IN A CLOSED ENCLOSURE

Abstract

An experimental study is made to determine the thermal output by convection and radiation inside a closed enclosure, crossed by two cylindrical tubes.The objective of this study is to determine the quantity of energy necessary, then to model it for current applications (drying, solar collectors etc.). A quantity of dry biomass is burned in two interdependent hearths with two cylindrical tubes which crosses a closed enclosure. The determination of the quantity of energy emitted by radiation and convection in the closed enclosure and which constitutes the useful energy in the case of drying , accounts for 33% of the natural energy contained in the fuel (wood).