PELTON TURBINE REDESIGN

HÖNNUN 2014

Ásmundur JónssonBragi SigurkarlssonEggert SveinssonÚlfar Karl Arnórsson

Instructor: Joe Foley

The previous version of the Pelton turbine. • Spills water all over the floor• The table was too low• Not properly attached to the

table• Has no flow meter• The manometer leaks• Too much frictions in the

bearing• No tachometer

THE TABLE

• Terrible accuracy• The turbine is not properly

attached• Not aesthetically pleasing • Has only two wheels, is

difficult to transport• Table is too low to be

operable• Ugly as sin

OUR DESIGN

• Higher table• Flow meter• Tachometer• Smart relay• Turbine and components are

attached to the table• Four wheels (not shown)• Better piping• Aesthetically pleasing

THE TABLE

• Made from 25x25x2 mm square profiles

• Welded joints

• Four wheels which we stole from Jón‘s coffee table

• Plywood and aluminum plates on top which are bolted

THE FLOW METER

• Constant volume type• Wheel which turns inside a

housing• Hall effect sensor to measure

rotational speed of the wheel• Unable to manufacture due to

CNC failure

THE TACHOMETER

• Hall effect sensor • Zelio soft Smart Relay

SMART RELAY HOUSING

• Made from 1 mm aluminum sheets

• Bolted with 4 mm bolts• Attached to top of table with bolts• Contains the smart relay and it’s

adapter• The user can read RPM and

average RPM

PIPING INLET

• New manometer which doesn‘t leak

• Better looking

• Properly attached to table

BEARING FRICTION

The friction in the bearing was caused by overtightning

in the brake wheel.

Saint-Venant‘s principle was fulfilled in the spacing between the bearings.

RISK ASSESSMENT

• Impact level acceptable

• No need for further actions due to safety