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TECHNICAL PAPERS

Thermal Analysis of Ice Walls Built by Rapid Freeze Prototyping

[+] Author and Article Information
Guanghua Sui

Sciperio Inc., Stillwater, OK 74075e-mail: sui@sciperio.com

Ming C. Leu

Department of Mechanical and Aerospace Engineering and Engineering Mechanics, University of Missouri-Rolla, Rolla, MO 65409-0050e-mail: mleu@umr.edu

J. Manuf. Sci. Eng 125(4), 824-834 (Nov 11, 2003) (11 pages) doi:10.1115/1.1621426 History: Received July 01, 2003; Online November 11, 2003
Copyright © 2003 by ASME
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References

Figures

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Ice parts built by Rapid Freeze Prototyping
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Dimensions and coordinates of an ice wall studied
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Cross sections showing the building of a vertical wall
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Difference between Eqs. (9) and (11) if time is 1 second
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Comparison of complementary error function and its exponential approximation
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Simulation result of a two-dimensional (x and z) model. The length is 200 mm and height is 5 mm. The scale of z axis is 13 times that of x axis.
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Temperature history of the middle point on the top edge
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Two-dimensional (x,y) simulation of an ice wall
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Temperature history of an element under water deposit
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The relationship between solidification time and height of ice wall
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The relation between solidification time and layer thickness for a 5 mm ice wall
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An ice wall with a thermocouple imbedded
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The solidification time versus layer thickness
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Measured temperature history of a newly deposited layer and comparison with analysis results
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Measured temperature history of a newly deposited layer and comparison with analysis results in a shorter duration
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Measured temperature of a fixed point on the wall when 54 layers were successively deposited
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Measured temperature history of the sixth and seventh cycles and comparison with analysis results
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Maximum temperatures in each cycle for a fixed point on the wall during the fabrication process
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Temperature history of an ice wall with insufficient waiting time
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A failed ice wall caused by too much heat build-up
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The cooling curve of the ice plate
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Logarithmic format of the cooling curve and the fitting line

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