Repotenciación y análisis de datos del CHILLER del laboratorio de transferencia de calor, para la determinación de las curvas de enfriamiento.

Abstract

This paper is about the empowerment and data analysis of chiller refrigeration equipment. The scientific interest for this research development is based on the importance of expanding knowledge about functionality of this type of equipment to vary service conditions for which it was designed, contributing valuable information to be taken into account for industrial development. In the analysis for heat extraction in a volume of 218 l solution composed of calcium chloride CaCl2 in experimental concentrations of 15%, 21% and 30% mass composition determines that the greatest difficulty is mass flow with variations estimated in pressure losses which lead to the change of operating points in the pumping equipment for the brine recirculating, also, the specific heat variation for temperature involves greater energy delivery by the condensing unit. For the acquisition user interface HMI software in LabVIEW is developed, which processes data of temperature and flow variations. The comparison of experimental data provides nonlinear trend curves which extend the cooling time according to the molar concentration of the brine, in order to analyze temperatures up to -10 °C, the equipment has an optimal functional performance, a change of the pumping unit and heat exchanger to increase the data analysis field is recommended.