Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1999-01-13
2000-08-22
Nguyen, Hoang
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
60671, 60679, F01K 2506
Patent
active
061053694
ABSTRACT:
A vapor generator includes a first plurality of tubes configured to direct a multicomponent working fluid so as to be subjected to process heat from a direct fired source, and a second plurality of tubes configured to direct a single component working fluid so as to be subjected to the process heat. The first plurality of tubes form a furnace wall with the multicomponent working fluid being supplied to the furnace wall in a vapor state. The multicomponent working fluid absorbs a portion of the process heat from the furnace wall thereby cooling the furnace wall. A backpass receives flue gases, and the second plurality of tubes are located in the backpass to absorb heat from the flue gases of the backpass so that the single component working fluid increases in temperature and the flue gases are cooled.
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ABB Alstom Power Inc.
Nguyen Hoang
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