BRIS, waross, thanks!
I assumed that the outlet of the turbibe should be closed (linked to a closed pipe) upto E. And the point E is submerged. What is the effect of the submerged depth on the suction pressure at the turbine ? I thought to consider a cross-flow turbine. Will this type of...
waross, warpspeed, thanks a lot !
I have now a better picture of this option. As to purging of the pipe from D to E, in case of low flow, how about increasing the water velocity of the discharge from the turbine so as to keep the pipe at relatively high pressure ? And then somewhere before...
waross,
thanks a lot. Yes you got the point. I don't have water source at F. The use of vacuum pump at D and pressure pipe from DE was not in my mind.
If I understood well your suggestion, Everything from A to E (if I pass through ACDE) should be a closed system. Thus, I will have my...
sed2developer:
I checked the hydram site. looking at the performance chart, I don't think it has a capacity that match my flow-in and flow-out requirement. The daily discharge I am considering in this problem is much higher than the max values listed in the chart.
waross:
Yes, I am using process water with fairly constant discharge. The current discharge line is through ACDE. There is no flow down to F. I just wanted to install a turbine at F to increase pressure head from A to F if I find economical option to lift water back to D. The reason to go...
I thank and appreciate your devotion here to figure out and suggest options to this problem. Using siphon is taking the momentum. Just to give you one more figure, the aerial distance between A to E is about 100 m. Using a siphon from A to E (or F to E) will not be convenient due to some...
Warpspeed, waross , BRIS,
Thanks. How do you dimension the siphon in terms of height and performance. Do you know commercially available siphons of the kind BRIS mentioned ?
I thank you guys !
The variation of the flow is not much. The flow what I described above are almost represents the 80 to 90 % flow time in my FDC. It means I have relatively constant flow sources.
As to using a siphon, the discharge elevation (D) is higher than the saction elevation (F)...
BRIS,
Thanks.
"Why do you not simply pipe from A to C to E and from B to D to E and place your turbines at E ?. "
Well, that could be a good option if I had no any constraint.
Do you mean two penstocks ?
The problem is that, just immediately after D, there is an electromecanical equipment...
I thank you all again.
I will be glad to show a sketch but don't know how where to present it.
Ok, let me try a bit with some thing visual. Look at the following points. Join ACDE. Then Join AD. AC is with 2m3/s, 3m scheme. BD is 0.9m3/s, 6m scheme. DE is combined drainage to a river...
BRIS:
The plot goes like that:
There are two water fall sources. one for bigger discharge (2 m3/s) with a fall of about 3 meters and a second with smaller discharge (0.9 m3/s) with a fall of about 6 meters. with this setup there is an existing combined discharge to a river at about 2.9 m3/s...
I appreciate the contribution of all of you !
As to the waterwheel, I have very complex site that doen't allow me thinking that. In addition, if I go with that much size, I will face problem with the hydraulic head of the outlet head, which is connected to a big river.
I could go with only a...
I thank you all.
Warpspeed: Well, the discharge to be lifted up to the pump position is higher than that hitting the ram pump. As I said, the water fall has a discharge of about 0.9 m3/s, head of about 6 m. On the other end, I have a discharge of about 2 m3/s to be lifted up a height of...
Hello,
I would like to combine a turbine with a pump in order to lift water up to the pump position. I am considering two options:
Either (1) using a turbine pump
Or (2) using a turbine and then connect it to a pump
From financial and technical point of view, which one is a better option...
