Diseño e implementación de un laboratorio virtual para medir caída de presión y obtener datos en tiempo real usando LABVIEW y visual BASIC para mecánica de fluidos

Abstract

The design and implementation of a virtual laboratory for measuring the energy loss in a ball valve through the acquisition of data in real time using the LabView and Visual basic software, has as objective to automate the collection of experimental and theoretical data for obtaining the losses coefficient of charge. On noticing the pressure and flow data from pressure meters and flow meter were manually taken. It saw the need to optimize equipment laboratory of Fluid Mechanics. Fact which led to work on the design, implementation and testing of an interface that receives data through two pressure sensors located before and after the valve, which will measure in parallel way flow volume by a turbine-type meter. Having identified the main components to build the hydraulic system, it was installed two pressure transmitters Kobold SEN-8601 and a flow meter GPI G2, which send data to the card of data acquisition NI 6008 in charged of processing to be transmitted to a PC that works in an interface using specific soft wares. The results obtained in the experimentation show a clear trend of increase of the coefficient of energy loss as the ball valve is closed while in parallel way the flow rate decreases, the research objective was fulfilled to systematize data acquisition, opening the possibility for further research to provide solutions to lower pressure loss. The study is complemented by laboratory guide, a maintenance plan and log tables to guide better performance of the procedure.