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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