1000 resultados para frutas tropicais
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Mode of access: Internet.
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Mode of access: Internet.
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The growing need for food is something that worries the world, which has a population that is growing at a geometric progression while their resources grows at an arithmetic progression. To alleviate this problem there are some proposals, including increased food production or reduce waste thereof. Many studies have been conducted in the world in order to reduce food waste that can reach 40% of production, depending on the region. For this purpose techniques are used to retard degradation of foods, including drying. This paper presents a design of a hybrid fruit dryer that uses solar energy and electric energy with automation of the process. To accomplish drying tests were chosen Typical fruits with good acceptability as processed fruits. During the experiments were measured temperature values at different points. Were also measured humidity values, solar radiation and mass. A data acquisition system was built using a Arduino for obtaining temperatures. The data were sent to a program named Secador de Frutas, done in this work, to plot the same. The volume of the drying chamber was 423 liters and despite the unusual size test using mirrors to increase the incidence of direct radiation, showed that the drier is competitive when compared with other solar dryers produced in Hydraulic Machines and Solar Energy Laboratory (LMHES ) UFRN. The drier has been built at a cost of 3 to 5 times smaller than industrial dryers that operate with the same load of fruit. And the energy cost to produce dried fruits was more feasible compared with such dryers that use LPG as an energy source. However, the drying time was longer.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Colombia es un país de múltiples oportunidades ya que cuenta con una situación privilegiada al tener todos los climas todo el año, posee dos océanos, lo cual da una ventaja competitiva en la parte comercial y en las condiciones actuales se constituye en un factor muy importante para la reactivación del país. En el campo, y sobre todo en la producción para la exportación, se puede buscar la generación de empleo y la reactivación económica. Con el fin de contribuir a despertar el interés entre los empresarios o futuros empresarios, sobre el sector de perecederos y más concretamente el sector de comercialización de frutas, se les comparten algunas reflexiones acerca del manejo y comercialización de éstas. El artículo consta de cinco secciones: en la primera se muestra una visión global del mercado colombiano y de los factores que lo han llevado a no explotar eficientemente los recursos naturales y la ventaja competitiva que se tiene.