Viabilidade de uso de um fogão solar para cocção de alimentos com parábola refletora fabricada em compósito que utiliza fibras de Carnaúba e resina Ortoftálica

摘要

Presents a composite formed by orthophthalic resin and fiber loading of carnauba straw. Thefibers were first dried in direct sun exposure and subsequently ground into fodder for thereduction in size. Various formulations of the composite were preliminarily tested bychoosing the one presenting the best processability in applying the mold. The compositeproduced is used for the manufacture of a parabolic surface subsequently coated with mirrorsegments, flexible plastic, for reflecting the solar rays incident on it. The reflective parablerepresents the main element of the solar cooker that works with the concentration of sunlightand has dimensions of 1.14 m in diameter and area of 1.0 m². Manufacturing processes andassembly of solar cooker concentration produced are presented. The results of tests forcooking and baking various foods, including rice, pasta, beans, cake, cassava, shrimp, beef,breaded demonstrating the competitiveness of solar cooker studied with other stoves alreadymanufactured and tested in Brazil are presented and in the world. It was also demonstrated thefeasibility of the proposed composite for Prototypes manufacture of solar and other structuresthat do not require great efforts resistance