PELTON TURBINE REDESIGN HNNUN 2014 smundur Jnsson Bragi

PELTON TURBINE REDESIGN HÖNNUN 2014 Ásmundur Jónsson Bragi Sigurkarlsson Eggert Sveinsson Úlfar Karl Arnórsson Instructor: Joe Foley

TEAM MEMBERS Ásmundur Jónsson Bragi Sigurkarlsson Eggert Sveinsson Úlfar Karl Arnórsson Yohann Pinson Grejoire Lecointe Jerome Delcambre Lemaire Marco Taken by: Joseph 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 25 x 2 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

SMAR HOUS • • • Made fro Bolted w Attached Contains adapter The use 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