Pelton Wheel for Power Generation

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Discussion Overview

The discussion revolves around the use of a Pelton wheel for power generation, specifically focusing on the feasibility of using a water pressure of 45 psi with various nozzle sizes. Participants explore the potential wattage and amperage outputs for different voltage configurations (12, 24, and 48 volts) and consider the implications of water flow rates and pressure on the system's performance.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant inquires about the possibility of determining power output using a Pelton wheel with 45 psi water pressure and various nozzle sizes.
  • Another participant references an article that outlines performance calculations for Pelton wheels, noting that 45 psi is within the operational range.
  • A participant seeks clarification on how to calculate wattage and amperage for different voltage outputs given the specified water pressure.
  • Concerns are raised about the necessity of sufficient water flow at the specified pressure and orifice size, prompting questions about the water source.
  • Details are provided about the water source being a well that supplies a neighborhood, with considerations regarding the impact on downstream users if too much power is extracted.
  • One participant emphasizes the importance of understanding the flow rate and potential consequences for neighbors if the water supply is affected by the installation of the Pelton unit.

Areas of Agreement / Disagreement

Participants express varying degrees of uncertainty regarding the calculations for power output and the implications of water flow rates. There is no consensus on the optimal nozzle size or the exact wattage and amperage that can be generated.

Contextual Notes

Participants acknowledge the need for specific calculations and considerations regarding water flow and pressure, but the discussion remains open-ended with no definitive solutions provided.

Who May Find This Useful

This discussion may be of interest to individuals exploring small-scale hydroelectric power generation, particularly those considering the use of Pelton wheels and related hydraulic systems.

Alfredo
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I am a simple Newbie, wanting to make power, using Pelton wheel say 45 psi water pressure , 3/8 to 1/2 nozzle...is there a way to determine the results or is there a better psi/nozzle combo? Generator can be 12/24/48 volts
 
Engineering news on Phys.org
:welcome:

This article https://en.wikipedia.org/wiki/Pelton_wheel#Design_rules shows you how to calculate the performance.

The same article says:
Pelton wheels operate best with heads from 15–1,800 metres (50–5,910 ft), although there is no theoretical limit.

45 psi is within that range.

Keep us posted on your progress.
 
SO if anyone knows is there a way to determine the wattage and amperage produce-able, for 12...24...48 volts, having 45 psi. I am a novice at formulas.
 
You will need to have enough flow available at that pressure and orifice size to feed it - what is your source of water?
 
I have a well that feeds a small neighborhood as it passes my property it has 45 psi per gauge, i was going to implant an encapsulated pelton unit(size to be determined) ,as everyone fills their tanks, constantly.One inch and a quarter line. So two orifices at half inch?
 
Alfredo said:
I have a well that feeds a small neighborhood as it passes my property it has 45 psi per gauge, i was going to implant an encapsulated pelton unit(size to be determined) ,as everyone fills their tanks, constantly.One inch and a quarter line. So two orifices at half inch?
And what maximum rate of flow do you get? As has been pointed out already, Power out will depend on water pressure and flow rate. If you try to take too much power from this water feed, people downstream of you will suffer a reduction in water pressure / flow. This may or may not be relevant. but if they become aware of this and if they know you have 'done something' to their supply, they may complain. Their tanks may take longer to fill if the exit pressure from your generator is significantly lower than at present.
Your power source cannot be totally 'free'. But I can see how tempting the idea is. :smile:
 

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