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Recycled Concentrated Solar Heater

3,606 bytes added, 21:08, 5 December 2018
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[[File:ImageneededAs part of my high school pre-engineering class for our final assignment we had come up with a final design project.png|thumb|right|Sample photo captionAn old water heater was also donated to this class.]] <center>''You can put After watching an abstract (episode of "The Cosmos," in which a brief description farm of your project) here. ''</center> Some introduction text and background can go here. == Understanding the market == This is where you can describe what already exists, what is neededparabolic solar concentrators were used to heat water in order to power a steam engine that irrigated water, etc. You may want I was inspired to include inline references. <ref> You can use recycle the ref code to include inline references. See [[Help:Footnotes]] for more.</ref> To make bullets use the asterisk:* Like this* old water heater and like this** and two for the next indent* and back to one..turn it into a concentrated solar water heater.
== Project goals ==
Turn Recycle an old household water heater and an old school chair and turn it into a solar concentrated water heater
Project steps:
#Research solar heater designs
# Model full scale design
# Model and build a 3-D printed small scale prototype
# Test effectiveness of design based on prototype
# Change design based on results
# Build full scale solar concentrator
== Research ==
Before starting to design my concentrated solar water heater I researched what some other people hade made.
There were two main designs I found:
* Parabolic concentrator
** Commercially available parabolic concentrated solar food cooker for camping
** DIY parabolic concentrated solar water heater<ref name="George's Workshop">{{cite web |url=https://georgesworkshop.blogspot.ca/p/solar-thermal.html|title=George's Workshop|}}</ref>
** Industrial parabolic concentrator farms to power steam engines (like the one I saw on "the Cosmos")
* Flat plate collector
** DIY flat plate solar collector <ref name="George's Workshop"/>
** Commercially available flat plate solar collector for home use
== Design ==
My original plan was to cut the end off of the water heater and then cut it down its length opposite of a flat spot it had. Next I wanted to bend the now cut water heater into a parabolic curve. I then wanted to machine and weld a metal apparatus to hold the water heater concentrator, a glass tube to collect the concentrated light, and a coiled copper tube to house the water to be heated.
[[File:1st solar concentrator CAD model.JPG|thumb|none| 700 px|right| CAD model I made to illustrate this idea.]]
My pre-engineering instructor requested I make a prototype to test the effectiveness of my design. I used a 3" PVC pipe cut in half for the concentrator and 3-D printed fittings to hold it, a glass tube, a copper tube and the half of the PVC tube I used for feet. I spent a lot of time designing the fittings in CAD, but I was very happy with the result. After I modeled everything, getting it to print properly was a little bit of a struggle since part of my design included 3-D printed nuts. When we had it all glued and bolted together it looked pretty good, but when when left it in the sun on a hot day it didn't heat it up at all.
{|style="margin: 0 auto;"
| [[File:Prototype CAD model.JPG|thumb|700 px|CAD model of the prototype]]
{|style="margin: 0 auto;"
| [[File:Testing prototype.JPG|thumb|900 px|Testing the prototype on a hot sunny day]]
Describe your design here.
<!-- Here is a sample gallery. --><gallery caption="Sample gallery">File:Imageneeded.png|Sample caption text.File:Imageneeded.png|More sample caption text. This would look better with different images. :)File:Imageneeded.png|Even more sample caption text. </gallery>
=== Next level heading =Final Design====Although the prototype didn't work my teacher let move to the full scale design anyway. Since I didn't have access to the funds to build the metal support structure I wanted, I had to re-design the solar concentrator with the materials I had. I planned to use wood to hold up the glass and metal tubes and an old pair of chair legs to hold up the concentrator. The first step in building it was cutting the water apart which turn turned out to more difficult than expect since it was very rusty and we had use a battery power hand tool to cut it. In order for the reflective mylar tape to stick I needed to remove the rust. So I contacted a local manufacturer who had a sand blaster and had them sand blast the rusty side. While assembling the concentrator I wasn't able to secure the legs tightly enough and couldn't set it at angles to face the sun like I had hoped. Also, I couldn't straighten out the copper tube enough to fit it inside the glass one, so painted it black to absorb more light. After a sunny enough day came along we brought it outside and filled it will water, it got hot enough that you could feel it but didn't heat the water enough to move it.
You may need deeper level headings{|style="margin: 0 auto;"| [[File:2nd solar concentrator CAD model. Just keep adding equal signs to get thatJPG|thumb|500 px|CAD model of the final design]] | [[File:Solar concentrator.JPG|thumb|400 px|Recycled concentrated solar water heater]]|}
== Costs ==
{| class="wikitable"
| free
|glass tubewater heater|$2.50free
|reflective mylar filmchair legs|$11.00free
|}small copper tube  Full design {| class="wikitable"free
! Item! Cost|-| water heaterlarger copper tube
| free
| chair legssmall glass tube| free$7.20
| large glass tube| $38.5030
| reflective mylar filmtape| re-used$11.00
== Results and Discussion ==
Your discussionThat year the engineering class set up display at a local art exhibit and my recycled solar water project had a nice big display, which is where the picture above is from. The final solar concentrator didn't get hot enough to heat water but it did get warm so I was on to something. I believe if I had made my parabolic shape more precisely and used a more reflective surface it would've preformed much better. I just didn't have the resources to properly construct my design. The large piece of metal I cut and bent could be reshaped into a more parabolic curve and covered in a better reflective material than the mylar tape I could fix the heat problem with the concentrator. If I ever return to this project, I want to turn it into a solar grill instead of a water heater.
=== Next steps === The next steps. == Conclusions Contact details ==
Your conclusions. == References == <!-- This code is for placing the citation you included above. If you did not use the <ref> code, please delete this. --><references/> == Contact details ==[[User:Pierce Mayville]]
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