Polyhedral array heat transfer tube
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Nov 2, 1998
filing date -
Nov 2, 1998
priority date (Note) -
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Abstract
A heat exchanger tube having an internal surface that is configured to enhance the heat transfer performance of the tube. The internal enhancement has a plurality of polyhedrons extending from the inner wall of the tubing. The polyhedrons have first and second planar faces disposed substantially parallel to the polyhedral axis. The polyhedrons have third and fourth faces disposed at an angle oblique to the longitudinal axis of the tube. The resulting surface increases the internal surface area of the tube and the turbulence characteristics of the surface, and thus, increases the heat transfer performance of the tube.
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