Resumo

VASQUEZ-SALAZAR, Rubén Darío; PUPO-URRUTIA, Adrián Camilo  e  JIMENEZ-AGUAS, Humberto José. An Energy Efficient and Low Cost System, to Control the Temperature and the Oxygen Increase, in the Red Tilapia Fingerling Cultivation's Tanks. Rev. Fac. ing. [online]. 2014, vol.23, n.36, pp.9-23. ISSN 0121-1129.

This paper describes an automated system which controls the temperature and increases the oxygen, in the growing red tilapia fingerling's tanks, at the Politécnico Colombiano Jaime Isaza Cadavid's John Jairo González Farm. The control operates through a PLC, which receives two temperature signals from the tank's different parts, and another signal from a level sensor. The PLC runs a control algorithm, which enables or disables various cold water circuits, pumped from the Guaracú stream or the hot water through a pumping process, from the tank into the solar collectors, and then returning it to the tank. This recycling ends when it reaches, a 29 °C temperature, slightly above the 28 °C ideal. The control system is validated by comparing the temperature and the oxygen, with a tank without any control.

Palavras-chave : Fingerlings; Red Tilapia Growing; Programmable Logic Controller; Electro Valve; Water Pump.

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