Desenvolvimento e avaliação de um protótipo para resfriamento evaporativo em casa de vegetação
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Data
2020-02-28
Autores
Dias, Douglas Edson
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Universidade Federal de Mato Grosso
Resumo
Greenhouses are extremely important devices for world agriculture, including
researching and cultivation of cultures that need protection from climatic adversities.
In most greenhouses in hot climates, the control of the microclimate is performed by
pad-fan type evaporative air systems. In this condition, this work aimed to develop a
small-scale prototype of a system where the conventional fan is replaced by a rotating
turbine ventilator, aiming to evaluate cooling efficiency and air humidification. The
prototype was developed at Federal University of Mato Grosso, Rondonópolis – MT,
Brazil, and was composed of two structures (greenhouses) with approximate volumes
of 9 m³, each with a type of material in its evaporative panel (cellulose and expanded
clay). The structure was monitored by temperature and humidity sensors, in order to
record the local microclimate for one month. Graphs and isotherms were generated
that allowed the analysis and comparison of the structures. The results showed that
the materials used in the evaporative cooling panel were not very efficient. When
compared, the cellulose panel had a better cooling efficiency compared to the
expanded clay.
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DIAS, Douglas Edson. Desenvolvimento e avaliação de um protótipo para resfriamento evaporativo em casa de vegetação. 2020. 72 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2020.