Vapor generator with preheater and method of operating same
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United States of America Patent
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May 25, 2010
Grant Date -
Dec 13, 2007
app pub date -
Sep 28, 2005
filing date -
Oct 14, 2003
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Abstract
An efficient high-temperature water vapor generator includes a combustion chamber and a surrounding structure, wherein a cavity is located therebetween. Water is pumped into the cavity at a location near a first end of the combustion chamber. Water is removed from the cavity at a location near a second end of the combustion chamber, opposite the first end. The water removed from the cavity is injected into the combustion chamber at a location near the first end. Fuel and air are also introduced into the combustion chamber at the first end. The fuel and air are ignited near the first end of the combustion chamber, thereby creating high-temperature water vapor, and pre-heating the water in the cavity surrounding the combustion chamber.
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