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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EXPERIMENTAL SETUP FOR A BENCH SCALE MULTIPLE DISKS TURBINE (TESLA TURBINE)
Submission Author:
Paulo Smith Schneider , RS , Brazil
Co-Authors:
Conrado Ermel, Paulo Smith Schneider, André Luis Ribeiro Thomazoni, Charles Rech, Julio Cesar da Silva Freitas Vieira, Gabriel Pettenuzzo Novo
Presenter: Conrado Ermel
doi://10.26678/ABCM.COBEM2017.COB17-2917
Abstract
This paper presents the assembling and commissioning of an experimental setup designed for the assessment of Multiple Disc Turbines (MDT). The workbench was built to essay MDT up to 1 kW mechanical output under controlled laboratory conditions. Compressed air is the driving working fluid, limited to the range of 2.0 to 4.5 bara, and some relevant output are reported, as working fluid mass flow rate, pressure and temperature. Steady state regime is established for several angular speed levels by means of a Foucault dynamometer, allowing for torque measurement. Sensors and workbench uncertainties are presented. Paper brings an experimental analysis of the isentropic efficiency of one MDT and compares it to literature. The achieved efficiency ranges from 9.7% to 12.0%, with ± 0.23% uncertainty, at 4.5 bara. Air mass flowrate is blocked at the turbine nozzle (Ma=1). Results are in accordance with the ones reported in literature, allowing to use the them for further analysis in numerical and analytical models.
Keywords
Tesla turbine, Multiple Disc Turbine, Low Availability Stream, Energy Recovery
