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US 2016/0238277 A1Published application
Box heater including a perforated flame holder
AssigneeClearsign Combustion Corporation
InventorsJOSEPH COLANNINO, DOUGLAS W. KARKOW, ANDREW LEE, CHRISTOPHER A. WIKLOF
Life of this patent
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Abstract
An enclosed heater includes a plurality of tubes (or a continuous serpentine tube) and a perforated flame holder within an interior volume. The plurality of tubes carries a working fluid. The perforated flame holder supports a combustion reaction of fuel and oxidant within the perforated flame holder and radiates heat to the tubes to heat the working fluid.
Claims33
An enclosed heater, comprising:
- one or more walls defining an interior volume;
- a plurality of tubes positioned within the interior volume along one or more of the walls and configured to carry a working fluid;
- a first fuel and oxidant source configured to output fuel and oxidant;
- and
- a first perforated flame holder positioned to receive the fuel and oxidant, the first perforated flame holder being configured to support a majority of a combustion reaction of the fuel and oxidant within the first perforated flame holder and to transfer heat to the tubes.
2 more elements
A method comprising:
- outputting fuel and oxidant onto a first perforated flame holder positioned within an interior of an enclosed heater, the enclosed heater including one or more walls defining the interior;
- supporting a majority of a combustion reaction of the fuel and oxidant within the first perforated flame holder;
- passing one or more working fluids through a plurality of tubes lining the one or more walls within the interior;
- and
- transferring heat from the first perforated flame holder to the working fluid.
2 more elements
A box heater, comprising:
- an enclosure;
- a tube including:
- a first segment positioned external to the enclosure;
- a second segment positioned within the enclosure;
- and
- a third segment positioned external to the enclosure, the second segment connecting the first segment to the third segment, the tube being configured to pass a working fluid from the first segment, through the second segment, to the third segment;
- a fuel and oxidant source positioned within the enclosure and configured to output fuel and oxidant;
- and
- a perforated flame holder positioned to receive the fuel and oxidant, to sustain a combustion reaction of the fuel and oxidant within the perforated flame holder, and to transfer heat from the combustion reaction to the working fluid as the working fluid passes through the second segment positioned within the enclosure.
6 more elements
Dependencies are inferred from the claim text.