machine drum washing impeller

Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, energy from the sea, hydraulic and hydroelectricity, biomass, biogas, deep geothermal energy ...
Christophe
Moderator
Moderator
posts: 79117
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10972




by Christophe » 07/12/09, 15:25

Uh level visual pollution I think the project is trèèèèèèèès badly barred!

I should have put something underwater so ...
0 x
User avatar
tigrou_838
I posted 500 messages!
I posted 500 messages!
posts: 573
Registration: 20/10/04, 11:25
Location: Lorraine border luxembourg

generator machine drum




by tigrou_838 » 07/12/09, 15:26

the idea will not be bad, a grid of old shopping trolley or fence fixed on the front of the raft up below the blades, so that the objects will pass under the raft and be dragged by the current along the fence without touching the blades.

at the level of visual pollution, it's when you make a dam two meters high. :D :D :D
0 x
User avatar
Macro
Econologue expert
Econologue expert
posts: 6459
Registration: 04/12/08, 14:34
x 1610




by Macro » 08/12/09, 08:05

All herbs twigs and co are going to get stuck in a shopping cart ...
0 x
Christophe
Moderator
Moderator
posts: 79117
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10972




by Christophe » 08/12/09, 10:17

Well that's why it has to be "self-cleaning" that is to say in a chevron or inclined ...

Real mills have such grids, do not they?
0 x
the middle
Econologue expert
Econologue expert
posts: 4075
Registration: 12/01/07, 08:18
x 4




by the middle » 08/12/09, 20:09

0 x
User avatar
Forhorse
Econologue expert
Econologue expert
posts: 2485
Registration: 27/10/09, 08:19
Location: Perche Ornais
x 359




by Forhorse » 08/12/09, 20:15

Christophe wrote:Well that's why it has to be "self-cleaning" that is to say in a chevron or inclined ...

Real mills have such grids, do not they?


I do not believe that the grids are so "self-cleaning" that that, because if there really existed a system which makes it possible to release the grid only by the force of the current, all the points of collection of water in river, that this either for turbines or for irrigation, would not be equipped with an electric "screeding" system (a kind of mechanical arm which regularly scrapes the grid to extract everything that has accumulated there)
0 x
boubka
Grand Econologue
Grand Econologue
posts: 950
Registration: 10/08/07, 17:22
x 2




by boubka » 08/12/09, 20:32

Good evening
Well that's why it has to be "self-cleaning" that is to say in a chevron or inclined ...

no miracle the grating is either manual or mechanical :|
0 x
Christophe
Moderator
Moderator
posts: 79117
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10972




by Christophe » 08/12/09, 23:02

lejustemilieu wrote:I found a raft Kaplan:
http://www.hellopro.fr/Turbine-hydro-ge ... oduit.html


You speak of that one I presume: Image

We had already "proposed" it wasn't you already at the time?
I had already said at the time that it was not Kaplan, the Kaplan is that: http://fr.wikipedia.org/wiki/Turbine_Kaplan it is a "propeller".

Pelton and Francis are the 2 other types of hydraulic turbines currently used.

See also: http://www.gestra71.com/turbine-hydraul ... arrage.php
0 x
raymon
Grand Econologue
Grand Econologue
posts: 901
Registration: 03/12/07, 19:21
Location: vaucluse
x 9




by raymon » 09/12/09, 07:40

To decrease the number of objects floating on your blades you can put a float across the stream 45 ° or 2 across the current that will avoid some of the branches that arrive. This technique is conventionally used in hydraulics.
0 x
Aumicron
Éconologue good!
Éconologue good!
posts: 387
Registration: 16/09/09, 16:43
Location: Bordeaux




by Aumicron » 10/12/09, 15:10

Even nuclear power plants are experiencing pangs related to objects in waterways.

EDF triggered the 1er 2 December night its internal emergency plan. At issue: large branches carried by the Rhone, which obstructed the supply of the safety cooling system of one of the four reactors of the Cruas nuclear power plant.

The following article is quite interesting and shows that the origin of the possible accidents in a nuclear power plant is very varied.

http://www.usinenouvelle.com/article/in ... he.N122560
0 x
To argue.

Back to "hydraulic, wind, geothermal, marine energy, biogas ..."

Who is online ?

Users browsing this forum : No registered users and 228 guests