Heat exchanger having heat exchange tubes with angled heat-exchange performance-improving indentations
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United States of America Patent
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Nov 9, 1999
Issued Date -
N/A
app pub date -
Dec 23, 1996
filing date -
Dec 23, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a heat exchange tube having angled heat-exchange performance-improving indentations on the tube. These angled performance-improving indentations increase the amount of heat transferred to a heat exchange liquid flowing through the tubes without substantially increasing the pressure drop or reducing the flow rate of the heat exchange liquid through the tube. An array of tubes can be made using heat exchange tubes of this invention, and a heat exchanger can be formed from an array or from tubes of this invention. In certain preferred embodiments, heat exchangers of this invention are particularly well-suited for use in solar-heating swimming-pool water or for use in thermal energy storage units.
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