Pelton wheel design parameters

In summary, the conversation is about replicating a project done in school for a Turbomachinery class, specifically building a functioning hydropower turbine model. The participants are looking for information on ideal parameters such as bucket width, width to length ratio, number of buckets, and nozzle diameter based on the size of the wheel. The conversation also mentions a book, "The Micro-Hydro Pelton Turbine Manual" by Jeremy Thake, which provides comprehensive information on building a Pelton turbine of any size.
  • #1
bigislander72
16
0
Would like to replicate a project we did in school for Turbomachinery class, which was to build a functioning hydropower turbine model. We were given the varous ideal parameters like bucket width, width to length ratio,number buckets and nozzle diameter based on size of wheel. Anyone know of any good links that have this info?
 
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  • #3
Anyone know the relationship between number of buckets for a wheel of particular diameter? Is it related to speed of wheel?
 
  • #4
I had a paper from a turbomachinery class but I can't seem to find it. It had pretty much all you're looking for, damn clutter. I'll keep an eye out.
 
  • #5
bigislander72 said:
Would like to replicate a project we did in school for Turbomachinery class, which was to build a functioning hydropower turbine model. We were given the varous ideal parameters like bucket width, width to length ratio,number buckets and nozzle diameter based on size of wheel. Anyone know of any good links that have this info?

Search Amazon or your favorite book store for this:

"The Micro-Hydro Pelton Turbine Manual," by Jeremy Thake.

This will tell you everything you need to know to build your own Pelton turbine - from scratch - of any size. The book was written to assist people trying to bring hydro power to the third-world, using the manufacturing capabilities available on location. The book includes some theory, sizing information, efficiency calcs, details of water jet design/control, bucket shape/size/orientation/material, and so on. Very complete.

Cheers -

Mitch Patrie
 
  • #6
Thanks for all the responses so far. Very helpful!
 

Related to Pelton wheel design parameters

1. What is a Pelton wheel and how does it work?

A Pelton wheel is a type of turbine used for hydropower generation. It consists of a series of buckets or cups attached to the rim of a wheel, which is rotated by the force of water hitting the buckets. The water is directed onto the buckets by a nozzle, which is controlled by a valve. The force of the water hitting the buckets causes the wheel to rotate, which in turn drives a generator to produce electricity.

2. What are the main design parameters for a Pelton wheel?

The main design parameters for a Pelton wheel include the diameter of the wheel, the number and shape of the buckets, the angle of the buckets, the speed of rotation, and the size and shape of the nozzle. These parameters are optimized to achieve maximum efficiency and power output for a given water flow rate and head (vertical distance between the water source and the turbine).

3. How do you calculate the efficiency of a Pelton wheel?

The efficiency of a Pelton wheel is calculated by dividing the power output (in watts) by the power input (water flow rate times the head). This value is then multiplied by 100 to get a percentage. A well-designed Pelton wheel can have an efficiency of up to 90%, meaning that 90% of the energy in the water is converted into mechanical energy to drive the generator.

4. What factors can affect the performance of a Pelton wheel?

The performance of a Pelton wheel can be affected by several factors, including the quality and flow rate of the water, the design and condition of the wheel and buckets, and the speed of rotation. Environmental factors, such as changes in water level or debris in the water, can also impact the performance of a Pelton wheel.

5. How does the selection of design parameters impact the efficiency of a Pelton wheel?

The selection of design parameters has a direct impact on the efficiency of a Pelton wheel. For example, a larger wheel diameter can increase the power output, but also requires a larger water flow rate and head. The shape and angle of the buckets can also affect the efficiency, as well as the speed of rotation. A careful balance of all design parameters is necessary to achieve the optimal efficiency for a Pelton wheel.

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