DESIGN, FABRICATION & EXPERIMENTAL VALIDATION OF BLADELESS TURBINE
ABSTRACT:
Tesla turbine is a bladeless turbine that works on the principle of boundary layer effect. Nikola
tesla invented the bladeless turbine in 1913. Energy is transferred from fluid to the rotor by
dragging force to the disks mounted on the shaft due to boundary layer effect. Fluid flows
tangentially towards the disks, follows a spiral path towards the Centre and exits axially. Efficiency
of tesla turbine is an issue over the years. Many efforts were made to increase efficiency of turbine
but they were mostly analytical and lack experimental evidences. A complete model of a Tesla
turbine is restricted by computer resources. More over in experimental work turbine is tested in
different configuration by changing number of nozzles, mass flow rate, angle of nozzle effect of
each of these parameters on efficiency is investigated and presented in the thesis. Change in disk
gap will be varied according to the efficiency requirement.
Result and discussion:
Nozzle angle 12, 1.6 kg/sec flow rate
12 Degree, 1 Nozzle
12 degree, 2 Nozzles
Effect of Efficiency on No of Nozzles (12 degree)
Nozzle Angle 9, 1.6 Kg/Sec Flow Rate
9 degree, 1 Nozzle
9 Degree, 2 Nozzles
Effect of Efficiency on No of Nozzles (9 degree)
nozzle angle 12, Changing flow rate
12 Degree, 1 Nozzle, 1.8 kg/sec
12 Degree, 1 Nozzle, 1.2 kg/sec
Effect on Efficiency by Changing Mass Flow Rate
Nozzle angle 9, Changing flow rate
9 Degree, 1 Nozzle, 1 kg/sec
9 Degree, 1 Nozzle, 2 kg/sec
Effect on Efficiency by Changing Mass Flow Rate
Chapter 8: Conclusion
Nozzles Angle
Number of Nozzle
Mass Flow Rate
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