Desenvolvimento de um sistema de controle da temperatura interna para um automóvel estacionado durante período de aquecimento

• Ano de defesa: 2016
• Autor(a) principal: Silva, Reginaldo de Araújo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual de Maringá; Brasil; Departamento de Engenharia Mecânica; Programa de Pós-Graduação em Engenharia Mecânica; UEM; Maringá, PR; Centro de Tecnologia
• Palavras-chave em Português: Engenharia mecânica, Área de controle, Temperatura interna do automóvel, Resfriamento do automóvel, Conforto têrmico, Eficiência energética - Brasil; Cooling; Ventilation; Car; Temperature; Controller; - Brazil; Engenharias; Engenharia Mecânica
• Link de acesso: http://repositorio.uem.br:8080/jspui/handle/1/3600

In the modern society the automobiles are more and more presents as much work item as of leisure. The comfort degree that the same can offer to their users became a decisive item in the use of the vehicles. However, when leaving an automobile parked under the incidence of the sunlight, the heating of the internal atmosphere does with that the temperature reaches high levels, what brings several unpleasant factors, as damages to the internal components of the vehicle and a larger consumption of fuel due to the system of conditioned air and even risks the human health. In the last years several works have been appearing with the intention of improving the conditions of thermal comfort inside the automobile and makes it more efficient. In this sense, this work proposed the construction of a ventilation system to remove the hot air from inside the vehicle by renewing the air in the external environment. For so much, a system of acquisition of data was elaborated, that together with a commercial software, the Matlab®, and a microelectronic controller, the Arduino, allowed to obtain the thermal profile inside the vehicle parked during the heating period and the construction of a control system to adjust the speed of the fans to obtain with which flow of air is possible to establish the minimum temperature inside the automobile. The adjustment of the control system was possible through the use of the controller type PID, with actions of control of the type proportional, integral and derivative, acting at the same time. The syntony system for the controller's parameters allowed the adjustment for obtaining of minimum errors. Once put in operation the simulation of the control system obtained good correlation with the experimental system making possible the reach of the objectives stipulated for the work. The temperature inside the automobile using the ventilation system reached a temperature level well below the temperature it interns measured without ventilation system, from 66ºC to 42ºC , respectively, fact this that generates good perspectives for future works