====== Pelton-Turbine calculations ======

===== =====

{{:mission:log:2012:02:pelton.gif?200|}}

^Parameter^Symbol/Relationship^Unit^Notes^ 
|Jetspeed|<x 12>v = \sqrt{2*g*H}</x>|m/s|Due to friction losses the jet will be 2-4% slower|
|Height/Head|<x 12>H</x>|m| |
|Earth Gravitation|<x 12>g</x>|m/s²|9,81 m/s²|
|Turbine RPM|<x 12>RPMt = {v}/{2R}</x>|rad/s|Optimum RPM is about 2-10% lower|
|Jet-Turbine Radius|<x 12>R</x>|m|Center axis to cup center|	
|Jet cross-section|<x 12>A = {Q}/{v}</x>|m²|adjusted by nozzle|	
|Water volume|<x 12>Q</x>|m³/s| |
|Jet diameter|<x 12>d = \sqrt{{4A}/{pi}}</x>|m| |
|Cup height|<x 12>b \approx 2.4*p</x>|m|+/- 12% tolerance in construction|


{{tag>energy pelton turbine}}


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