Brewery Shaft - Pelton Wheel · AditNow Community

Mine exploration, photographs and mining history for mine explorers, industrial archaeologists, researchers and historians

a b c d e f g h i j k l m n o p q r s t u v w x y z

Vanoord
54.4% (Neutral)
Newbie Topic Starter

17 years ago

Assumedly this is a pelton wheel!

Is the grey funnel-shaped thing the means by which the water is squirted at the buckets?

🔗Brewery-Shaft-Other-Rock-Mine-User-Album-Image-008[linkphoto]Brewery-Shaft-Other-Rock-Mine-User-Album-Image-008[/linkphoto][/link]

And a larger picture:

🔗Brewery-Shaft-Other-Rock-Mine-User-Album-Image-041[linkphoto]Brewery-Shaft-Other-Rock-Mine-User-Album-Image-041[/linkphoto][/link]

Would this have been in a housing originally? I'd have expected it to be a bit misty in that chamber otherwise...

Hello again darkness, my old friend...

Wanna join the discussion?! Login to your AditNow Community forum account or Register a new forum account

jagman
50.2% (Neutral)
Newbie

17 years ago

Yes to all your questions 😉
The reason they are generally found partly dismantled is that the phosphor bronze bearings they ran on were very valuable and often removed once the machine became redundant (or sometimes just oppurtunistic theft)

Captain Scarlet
50.2% (Neutral)
Newbie

17 years ago

Pelton wheels, unlike Waterwheels are able to utilise the potential energy in a head of water.

STANDBY FOR ACTION!!!!...

Gwyn
50.2% (Neutral)
Newbie

17 years ago

Francis Peltons are even more efficient and a common choice for modern, small hydro schemes.

Boggy
50.2% (Neutral)
Newbie

17 years ago

im sure this was mentioned elswhere in a post or ive read about it,but isnt the funnel a nozzle with a retracting pin that atered the angle of the jet onto the cups thereby increasing/decreasing the speed of rotation,or am i thinking of something else,but either way the funny coloured thing is the nozzle for the water jet.

if its a hole explore it...

SimplyExploring
50.2% (Neutral)
Newbie

17 years ago

Yes the valve is what they call a spear valve. Its design is highly efficient, as it means you get the same kinetic energy at the cups for allot less water. Without getting into too much mathematics the spear changes the flow angle and directs the water onto the primary part of the cup without the loss of energy of a standard valve.

Gwyn
50.2% (Neutral)
Newbie

17 years ago

Just make sure the water is filtered!! Grit and pebbles don't do it any good!

grahami
50.2% (Neutral)
Newbie

17 years ago

"Gwyn" wrote:
Just make sure the water is filtered!! Grit and pebbles don't do it any good!

No - nor slate dust - that's why Oakeley had to replace their turbine on the G pump in the 1920's - the casing had worn away!

Grahami

The map is the territory - especially in chain scale.

Mr Mike
50.2% (Neutral)
Newbie

17 years ago

A couple years back, I was staying in Nent and some engineers from Chez Republic where over to do adjustments on the new hydroelectric scheme at Nent, got talking with them, and could not help myself...

🔗Personal-Album-125-Image-001[linkphoto]Personal-Album-125-Image-001[/linkphoto][/link]

🔗Personal-Album-125-Image-002[linkphoto]Personal-Album-125-Image-002[/linkphoto][/link]

Interesting to see that the current pelton wheel has not really changed. However the number of jets used in this case was 5 per wheel, the nozzles for controlling the jet profiles where also made out of a type of plastic rather than steel. According the the engineers, there was no difference in performance or wear, hard to believe the wear side??

Mr Mike www.mineexplorer.org.uk