Diseño y construcción de un dosificador de biomasa forestal para gasificador tipo downdraft ubicado en el laboratorio de térmicas de la Facultad de Mecánica de la Escuela Superior Politécnica de Chimborazo.

Abstract

The present work shows the design and construction process of a proportioner of Downdraft type forestry biomass located in the thermal area of the Mechanics Faculty of the Escuala Superior Politecnica of Chimborazo because the gasifier of the area shows characteristics which make it unattractive for the industry, among which there are the proportioning difficulty of the raw material (wood) and the insecurity for the operator, who must permanently provide the wood during the process to have its normal fuctioning. To solve this problem, a proportioner is developed from the state of the art revision and the technological developments in the transportation and food area of the solid wastes to solve the feeding system of better features using as design tool “ the quality house” in which is determined that an horizontal worm gear conveyer will be applied, which will be didactic for the use of both the students and teachers satisfying the gasifier functioning conditions upon carrying out the system selection and design together with the parts based on the existing norm, taking into account the selection of the adequate materials. In testing, a major stability in the gasifying process is verified as upon continuously proportioning, the producer gas massive flux increase can be observed with calculations based on a mass balance of the gasifier, observing the generated flame duration, besides an evident reduction of human intervention in the process; from the above mentioned, it is recommended to install the automated gasiftarting.