The document describes the design and testing of a hybrid turbine-pump that uses Tesla's disc-type design. It discusses how the turbine and pump operate using viscous drag and boundary layer effects without conventional blades. The hybrid design integrates a Tesla turbine and pump to allow fluid transportation and power generation. Experimental testing showed the design is suitable for pumping highly viscous fluids. While it produces low torque, the design has applications in industries like chemical processing and waste treatment. Further research is still needed to improve efficiency.

1. DESIGN AND TESTING OF DISC
TYPE HYBRID TURBINE-PUMP
Guided by,
Er. Jiju John
Assistant Professor
ME Department
Submitted by,
Denny John
Roll No: 19
S7

2. CONTENTS
INTRODUCTION
PROBLEM DESCRIPTION
LITERATURE REVIEW
WORKING PRINCIPLE
DESIGN
EXPERIMENTAL TESTING AND RESULTS
ADVANTAGES AND DISADVANTAGES
CONCLUSION
REFERENCE

3. INTRODUCTION
• Nikola Tesla invented the bladeless turbine in 1913.
• Instead of using fan type blades he used solid disc metal.
• Here we uses properties of fluids like viscosity, adhesion, cohesion,
instead of conventional energy transfer mechanisms.
• In this presentation, Integration of two types of viscous drag hydraulic
machines- tesla turbine & tesla pump are made.
• Fluid transportation and power development is the advantage of these
type of power unit.

4. LITERATURE REVIEW
• Nikola tesla invented bladeless turbine in 1909 and patented in1913.
• In 1948, tesla turbine pump started its initial production.
• In 1993 John pacello & Peter hanas studied the hard to pump
applications of tesla pump.
• In 2013, Dr. Amalraju published a research paper regarding hybrid
tesla turbine pump

5. PROBLEM DESCRIPTION
• Tesla pumps have a great application in lifting highly viscous fluids.
• Ordinary pumps have the following disadvantages
o Difficulty in pumping highly viscous fluids.
o Difficulty in pumping highly abrasive slurries with high
amount of solid particles.
• Disadvantages of ordinary tesla pump are
oHigh inlet pressure required at inlet.
oLow torque.
oLow efficiency.

6. WORKING PRINCIPLE
• Both turbine and pump operates mainly on the principles of boundary
layer effect and viscous drag.
• Fluid layer closer to the inner disc surface in the inner disc spacing are
almost stationary from external point of view but they are at highest
velocity.
• Energy is transferred to adjacent layers.
• By viscous drag principle middle layer has maximum velocity.
• Operation of turbine depends upon impinging velocity
• A portion of the fluid pumped by the pump is bypassed to the turbine inlet
which rotates the turbine and turbine outlet is connected to the pump.

7. Fig 1: Fluid path in a Tesla pump

8. Fig 2:Fluid path in a Tesla turbine

9. DESIGN OF TURBINE PUMP
 Uses same type of packing(metal, plastics, ceramics) and
sealing(carbon, ceramic, silicon carbide) arrangements as a
centrifugal pump.
 Disc assembly and pumping mechanisms can be varied by
 Number of discs.
 Diameter of disc (8,10,12,14,17,20 inches are
standard).
 Spacing of the disc (determined by solids to be
passed and nature of fluids).
 Discs are of smooth or ribbed.
 Spacers are used in between discs.

10. Contd…
 Disc are arranged in tandem and are fitted to a circular flange which is
coupled with a shaft.
Fig 3: Forms of discs

11. TESTING BY SIMULATION
 Flow simulation by cosmos flow is presented.
 A prototype is created for this purpose.
 Pump is simulated for head range of 2 to 10m with 1m
interval.
 Simulation Configuration-
 No of discs: 10.
 Inlet pressure: Environmental pressure.
 Outlet pressure: 20000 to 100000 Pa.
 RPM: 1440
 It doesn’t account losses.
Fig 4: Simulation model

12. • Head vs Discharge: for each head, discharge is
obtained. Results are plotted to know the pump
performance.
TABLE: Head Vs Discharge

13. • Velocity :
 Flow produce a vortex in the outlet
 Pressure produced by boundary layer effect is
effectively collected to produce more head.
 Volute casing is used for this.
• Pressure :
 centrifugal force by the disc to the fluid pro-
duce high pressure inside casing.
 It is effectively transferred to make a higher
head of delivery by pump.
Fig 5: Velocity plot
Fig 6: Pressure plot

14. • Turbine output:
TABLE 2: discharge vs RPM

15. EXPERIMENTAL TESTING AND RESULTS
• Pump testing
 Pump is tested to variable head from 1 to 10m.
 1m suction lift is used.
 Discharge head= total head-suction head.
 Pipe friction losses are 1m/10m for selected pipe system.

16. TABLE 3: Experimental(Q Vs H) value

17. • Turbine testing:
 A control valve is used to get the desired flow rates.
 Theoretically required angular velocity is obtained by
 V=ω * R
Where V= velocity in m/s
ω= angular velocity in rad/s
R= radius in m
 ω= (2ΠN)/60
 By controlling mass flow, velocity at outlet is varied and desired
angular velocity is achieved.

18. TABLE 4: Q Vs RPM

19. RESULTS COMPARISON
• Discharge decline is in a linear manner.
• Difference in the graphs indicates the losses due to pumping, friction,
sealing.
• To collect maximum pressure volute casing is recommended.
• To produce best power outputs effective nozzle configurations should
be implemented.

20. TABLE 5: Comparison Table

21. ADVANTAGES
 Use of different kind of exotics fluids, with particles, droplets,
multiphase is possible.
More stable flow and lower cavitation occurrence.
It can turn at much higher speeds with total safety.
Tesla disk is the double clockwise and anticlockwise direction of
rotation in a single machine.
It can be used for lifting highly viscous fluids , viscosities upto several
10000 cP.
Little wear from abrasion during pumping, slurries containing upto
80% solids by volume can be pumped without clogging the system.

22.  Tesla was able to demonstrate a
fuel efficiency of 60% with his
bladeless turbine design. Most of
engines today do not get above 27
– 28% energy efficiency in their
conversion of fuel to work.
 Rotor has high efficiency as
shown in the figure
Fig 7: Efficiency comparison
Fig 8: Rotor efficiency

23. DISADVANTAGES
High speed but low torque.
Experimentally has been found many difficulties to achieve high
efficiencies in nozzles and rotors.
Proof of its efficiency compared to conventional turbines is still
questionable and needs more research.

24. APPLICATION
 Geothermal applications
 Chemical, oil & petrochemical processing.
 Pulp & paper manufacturing.
 Waste water treatment &disposal applications.
 Food & sanitary applications.
 Mining & environmental cleanup.

25. CONCLUSION
• Comparative study of experimental and simulation results shows that
disc pump is more suitable for high viscous liquids.
• It requires effective nozzle design to produce more efficient output.
• This integration of two hydraulic fluids forms a base of new
application and can be considered for further research.

26. REFERENCE
• “Rebirth of the Tesla Turbine”, Published in “Extra Ordinary
Technology” magazine – July 2003.
• Danny Blanchard, Phil Ligrani, Bruce Gale. “Single-disc and double-
disc viscous, Micro pumps”.
• Petr Bloudicek, David Palousek. “Design of tesla turbine”.
Konference diplomovych praci 2007
• Warren Rice, “Tesla Turbomachinery”, Proc. IV International Nikola
Tesla Symposium (Sep. 23 – 25 1991).
• H. S. Couto1, J.B.F. Duarte2 and D. Bastos-Netto, “The Tesla Turbine
Revisited”, 8thAsia-Pacific International Symposium on Combustion
and Energy Utilization October 10-12, 2006, Sochi, Russian
Federation.

27. THANK YOU