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

Changes

Jump to navigation Jump to search

Kingston Hot Press: Process Improvements

86 bytes added, 12:22, 16 April 2010
no edit summary
At Queen's University Dr. Matovic has produced CAD drawings fully detailing the design and dimensions of the [http://wasteforlife.org/wp-content/uploads/2010/02/Kingston-hotpress-documentation.pdf Kingston Hot Press].
<center>[[Image:DrMatovicHotPressCAD.jpg]]</center>
The original design used 1/4" steel plates to press and heat the tiles. To overcome temperature inconsistencies which were producing burnt profiles the prototype plates were replaced with 1/2" aluminum plates.
The mesh shown below was generated automatically through the SolidWorks mesh function.
<center>[[image:Mesh.JPG]]</center>
The thermal analysis carried out through COSMOWorks utilized the following Load/Restraints:
Using these constraints a numerical thermal analysis was performed. The image below represents temperatures across the top of the hot press for an aluminum plate of 0.25" with the colour legend ranging from 426K-313K.
<center>[[image:PlateAlTemp.JPG]]</center> 
Very similar results were found for the steel plate (image not shown). The image below represents temperatures across the bottom of the hot press for the same plate and it qualitatively appears that there is minimal temperature fluctuations across the bottom face of the plate. Again the steel plate simulation produced quantitatively indistinguishable results.
<center>[[image:PlateAlTempB.JPG]]</center>
To confirm these qualitative observations a representation was produced of the temperature gradient across the bottom face of the aluminum plate shown in the image below:
<center>[[image:PlateAlGrad.JPG]]</center>
A similar result showing the gradient across the bottom face of the plate to be negligible was found for the steel plate analysis.
193

edits

Navigation menu