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HiTekRedNek
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Hydropower

06/28/2018 5:18 AM

How much energy,theoretically and realistically, can be produced by 3000 gallons per minute of water,falling from a height of 100 ft,using the current alternator-turbine technology?

Thanks in advance for all feedback on this!

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JPool
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#1

Re: Hydropower

06/28/2018 6:49 AM

This page has a formula to figure it out.

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HiTekRedNek
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#14
In reply to #1

Re: Hydropower

06/29/2018 6:21 AM

Great link! Thanks!

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Rixter
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#2

Re: Hydropower

06/28/2018 11:08 AM

3000 gpm x 8 lb/gal x 100 ft = 2,400,000 ft lb/min

2400000 ft lb/min x 1 hp/33000 ft lb /min = 72.73 hp

2400000 ft lb/min x 1 W/44.25 ft lb /min = 54.237 KW

Hydroelectric plants are about 90 percent efficient, so about 49 KW.

http://www.wvic.com/Content/Facts_About_Hydropower.cfm
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Codemaster
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#4
In reply to #2

Re: Hydropower

06/28/2018 1:09 PM

Somewhat optimistic, IMO. 90% efficiency for the alternator would be good going, as would 80% for the turbine, giving close to SolarEagle's 40kW at most. Those efficiencies probably generous for such a small system.

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Dr. Harry
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#19
In reply to #2

Re: Hydropower

06/29/2018 1:43 PM

Unfortunately, mini-hydro units do not have nearly as much efficiency as the "big boys".
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SolarEagle
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#3

Re: Hydropower

06/28/2018 11:10 AM

Around 40kw...

http://www.hydroconnect.at/en/performance-calculator/

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lyn
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#5

Re: Hydropower

06/28/2018 2:21 PM

I see 49 KW, and 40 kW as answers???

I see no kWh.

Is it me, or are we missing something?
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SolarEagle
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#6
In reply to #5

Re: Hydropower

06/28/2018 2:40 PM

Around 368,000 kWh annual output ...

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Codemaster
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#7
In reply to #5

Re: Hydropower

06/28/2018 2:51 PM

OK, OP did say energy, not power, but as he didn't say over what time period, power seems more useful. I'm sure he can take it from there!

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Rixter
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#8
In reply to #5

Re: Hydropower

06/28/2018 4:21 PM

He should have asked for power, not energy, having given gallons per minute...
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Doorman
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#9
In reply to #8

Re: Hydropower

06/28/2018 4:54 PM

After all, he is a Hi Tek Red Nek.

He only looks like Nikola Tesla.

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HiTekRedNek
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#15
In reply to #8

Re: Hydropower

06/29/2018 6:31 AM

I actually wanted energy and power,hence the mixing of terms,but I should have been more explicit considering the highly esteemed and educated populace of this blog.

I will try to clarify in the future.

As for being a RedNek,yes, I am,and proud of it.

We even passed a law recently declaring that if you and your wife get a divorce,she can still be your cousin.

This country owes a lot to rednecks,for instance:

The toothbrush was invented in Arkansas.

Anywhere else,it would have been called a teethbrush.

Thanks for the valuable feedback and compliments from everyone.

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lyn
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#17
In reply to #15

Re: Hydropower

06/29/2018 11:42 AM

And the Arkansas toothpick.
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HiTekRedNek
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#18
In reply to #17

Re: Hydropower

06/29/2018 1:36 PM

No need for a toothpick when you only have 1 tooth.

Dat iz a grizzly bar rib rench.

Donchoo no nuttin boy?

I got mi fist one when I wuz 3.

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PWSlack
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#20
In reply to #15

Re: Hydropower

06/29/2018 1:47 PM

As there is a rate in the input data, and not a quantity, the output is the rate of doing work, i.e. the power, and not the quantity of work available, i.e. the energy.

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PWSlack
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#11
In reply to #5

Re: Hydropower

06/29/2018 2:57 AM

<...missing something?...> No, because the original poster does not state the quantity of water available, so all that can be known is the rate: <... no kWh...> is understandable.

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HiTekRedNek
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#16
In reply to #5

Re: Hydropower

06/29/2018 6:33 AM

Simply multiply by the number of hours operated.

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lyn
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#10

Re: Hydropower

06/28/2018 6:56 PM

What good is power if it does no work?

That's enough power to run 4,000 sewing machines continuously.
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Codemaster
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#12
In reply to #10

Re: Hydropower

06/29/2018 5:53 AM

Lyn, I think you're trying to wind us up!

Power for any length of time (> 0) does work.

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PWSlack
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#13
In reply to #12

Re: Hydropower

06/29/2018 6:04 AM

<...wind...up...> Stitch, more like.

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Users who posted comments:

Codemaster (3); Doorman (1); Dr. Harry (1); HiTekRedNek (4); JPool (1); lyn (3); PWSlack (3); Rixter (2); SolarEagle (2)

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