Get our free book (in Spanish or English) on rainwater now - To Catch the Rain.

Difference between revisions of "Micro-Turbines for Water Power"

From Appropedia
Jump to: navigation, search
(Title of the device or system)
(Cost savings)
 
(23 intermediate revisions by the same user not shown)
Line 9: Line 9:
  
 
==Abstract==
 
==Abstract==
# Paragraph description of the OSAT - why is it Appropriate? What need does it fulfil? Are there case studies you have found of a technology being used successfully?
+
This is a cross-flow turbine<ref> Wikipedia: Cross-flow turbine Available: http://en.wikipedia.org/wiki/Cross-flow_turbine</ref>, essentially a water wheel turned by naturally flowing water to produce energy. Unlike a dam, or a mill wheel this is very small, more used in smaller streams and such. This provides energy without the cost of fuel and the only time and energy used to work on it is set up and very occasional maintenance. This is used in developing areas around the world because it's much cheaper and less time consuming. This design takes it to the next level where the material costs of the wheel itself are significantly reduced using 3D-printing.
# Picture of completed print using [[image:name-of-your-image.png|500px|right]]
+
[[image:Water_Wheel.jpg|300px|right]]
  
 
== Bill of Materials==
 
== Bill of Materials==
# Provide a full BOM -- Materials needed for fabrication of device and alternative materials if they are not available, prices/sources of non-printable parts
+
# PLA or ABS Filament (1.75mm)
## Upload and link to all source files
+
# All of the STL files and the SCAD files are [http://www.thingiverse.com/thing:577204 here].
## Upload and link to all STLs
+
# Plastic Epoxy for better blade adhesion.
 +
# Hook up to actually generate power
  
 
== Tools needed for fabrication of the OSAT==
 
== Tools needed for fabrication of the OSAT==
 
# [[Delta_Build_Overview:MOST| MOST Delta RepRap]] or similar RepRap 3-D printer
 
# [[Delta_Build_Overview:MOST| MOST Delta RepRap]] or similar RepRap 3-D printer
#
+
# Knife/Exacto Knife
  
 
== Skills and Knowledge Necessary to Make the OSAT ==
 
== Skills and Knowledge Necessary to Make the OSAT ==
* If you used special skill – link to relevant wikipedia or wikiversity articles/courses
+
* 3D-printing
  
 
== Technical Specifications and Assembly Instructions==
 
== Technical Specifications and Assembly Instructions==
# Provide directions for print/assembly - be detailed enough in your “how to” to ensure that someone could construct the device from your description. Consider the elegance of IKEA like instructions.
+
# Slide the blades into the slots so the wheel handles are facing out.
# Include print time estimate
+
# if friction isn't sufficient to hold the blades then add a small amount of epoxy onto the inside of the wheel on the blades for more secure fit.
# Include assembly time estimate
+
 
# Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
+
[[image:Water_Wheelend.jpg|300px|right]]
# Consider video if appropriate
+
{|style="border:1px solid #73BF73; background-color: #E6FFE6; margin-left:.1em; margin-top:2px; -moz-border-radius:15px;" align="right" width="150px"
+
!<big>Example video summary of textbook</big>
+
|-
+
|<center>{{#widget:YouTube|id=yiJDx9dCfEQ}} </center>
+
|-
+
|}
+
  
 
=== Common Problems and Solutions===
 
=== Common Problems and Solutions===
* Include common mistakes/problems to avoid in building your OSAT and how to overcome them
+
* Poorly fitting blades, or broken wheel spokes are both fixable with a small amount of epoxy
  
 
== Cost savings==
 
== Cost savings==
* If your solution is not a low cost one then it is not really appropriate.
+
 
# Estimate your costs
+
# The mini wheel is about $0.30
# Find a commercial equivalent
+
# Cost saving really depend on the size of the wheel.
# Calculate $ savings and % savings
+
# Some micro-turbine plants can cost up to $20000<ref>Wikipedia: Micro Hydro Available:http://en.wikipedia.org/wiki/Micro_hydro</ref>.
  
 
==References==
 
==References==
 
* The sources of information (e.g. engineering handbooks, journal articles, government documents, webpages, books, magazine articles etc.). References should use the <nowiki> <ref> </ref> and <references/>  </nowiki>tags and can be in any format but should include all the information necessary for someone else to find the same information you did. For example: <ref> web page: Department of Energy (DOE) Landscaping and Energy Efficiency, DOE/GO-10095 (1995) Available: http://www.eren.doe.gov/erec/factsheets/landscape.html</ref>
 
  
 
<references/>  
 
<references/>  
<nowiki>
 
Based on the developmental needs addressed (e.g. food, heat, electricity, clean water, health  care, etc.) be sure to label your device in the proper categories e.g. use [[Category:Water]]. Be sure to categorize your device so that it will be easy to find – for example “Low voltage connection basics” is categorized in
 
 
 
  
[[Category:How tos]]
+
[[Category:Water]]
[[Category:Electricity]]
+
[[Category:3D printing]]
[[Category:Electric lighting]].
+
[[Category:OSAT 3D-Printable Designs]]

Latest revision as of 10:22, 4 December 2014

MOST Delta filament as guide.JPG This page was part of an MTU course MSE4777 OA and MSE4777 OB/MSE5777/EE4777/EE5777: Open-source 3-D printing

Please leave comments using the discussion tab. The course runs in the Fall semester. It is not open edit.


Micro-Turbines for Water Power[edit]

Project developed by Emily Hunt
Status
This OSAT has been designed but not yet tested - use at own risk.
This OSAT has been prototyped.

You can help Appropedia by contributing to the next step in this OSAT's status.

Abstract[edit]

This is a cross-flow turbine[1], essentially a water wheel turned by naturally flowing water to produce energy. Unlike a dam, or a mill wheel this is very small, more used in smaller streams and such. This provides energy without the cost of fuel and the only time and energy used to work on it is set up and very occasional maintenance. This is used in developing areas around the world because it's much cheaper and less time consuming. This design takes it to the next level where the material costs of the wheel itself are significantly reduced using 3D-printing.

Water Wheel.jpg

Bill of Materials[edit]

  1. PLA or ABS Filament (1.75mm)
  2. All of the STL files and the SCAD files are here.
  3. Plastic Epoxy for better blade adhesion.
  4. Hook up to actually generate power

Tools needed for fabrication of the OSAT[edit]

  1. MOST Delta RepRap or similar RepRap 3-D printer
  2. Knife/Exacto Knife

Skills and Knowledge Necessary to Make the OSAT[edit]

  • 3D-printing

Technical Specifications and Assembly Instructions[edit]

  1. Slide the blades into the slots so the wheel handles are facing out.
  2. if friction isn't sufficient to hold the blades then add a small amount of epoxy onto the inside of the wheel on the blades for more secure fit.
Water Wheelend.jpg

Common Problems and Solutions[edit]

  • Poorly fitting blades, or broken wheel spokes are both fixable with a small amount of epoxy

Cost savings[edit]

  1. The mini wheel is about $0.30
  2. Cost saving really depend on the size of the wheel.
  3. Some micro-turbine plants can cost up to $20000[2].

References[edit]

  1. Wikipedia: Cross-flow turbine Available: http://en.wikipedia.org/wiki/Cross-flow_turbine
  2. Wikipedia: Micro Hydro Available:http://en.wikipedia.org/wiki/Micro_hydro