초록 ▼

A dual-fluid heat engine having a gas turbine and an open cycle steam turbine. The gas turbine has a compressor for compressing a first working fluid, the compressor having a compressor outlet. The gas turbine has a combustion chamber in fluid communication with the compressor outlet. The turbine po

A dual-fluid heat engine having a gas turbine and an open cycle steam turbine. The gas turbine has a compressor for compressing a first working fluid, the compressor having a compressor outlet. The gas turbine has a combustion chamber in fluid communication with the compressor outlet. The turbine portion of the gas turbine has an inlet in fluid communication with the combustion chamber for performing work by expansion of the first working fluid, and a gas turbine exhaust. A heat recovery exchanger is coupled to the gas turbine exhaust having a heat recovery inlet and an outlet for heating a second working fluid, water. The water is converted into steam in the heat recovery exchanger. A pump increases the pressure of the water prior to entrance in the heat recovery exchanger. An atmospheric exhaust expansion steam turbine extracts energy from the heated second working fluid to drive an electrical generator. An exhaust chimney takes the gas turbine exhaust and the steam turbine exhaust and rejects it into the atmosphere.

대표청구항 ▼

A dual-fluid heat engine having a gas turbine and an open cycle steam turbine. The gas turbine has a compressor for compressing a first working fluid, the compressor having a compressor outlet. The gas turbine has a combustion chamber in fluid communication with the compressor outlet. The turbine po

A dual-fluid heat engine having a gas turbine and an open cycle steam turbine. The gas turbine has a compressor for compressing a first working fluid, the compressor having a compressor outlet. The gas turbine has a combustion chamber in fluid communication with the compressor outlet. The turbine portion of the gas turbine has an inlet in fluid communication with the combustion chamber for performing work by expansion of the first working fluid, and a gas turbine exhaust. A heat recovery exchanger is coupled to the gas turbine exhaust having a heat recovery inlet and an outlet for heating a second working fluid, water. The water is converted into steam in the heat recovery exchanger. A pump increases the pressure of the water prior to entrance in the heat recovery exchanger. An atmospheric exhaust expansion steam turbine extracts energy from the heated second working fluid to drive an electrical generator. An exhaust chimney takes the gas turbine exhaust and the steam turbine exhaust and rejects it into the atmosphere. tube in the bending region and being moveable relative to the frame to bend the tube about the first anchor; a second die adapted to engage the tube in the bending region and being moveable relative to the frame to bend the tube about the second anchor; a third die adapted to engage the tube in the bending region and being moveable relative to the frame to bend the tube about the first anchor; and a fourth die adapted to engage the tube in the bending region and being moveable relative to the frame to bend the tube about the second anchor; wherein the first die and the third die are attached to the first rotating member, and the second die and the fourth die are attached to the second rotating member. 2. The tube bender of claim 1, wherein the first anchor is moveable between an extended position to engage the tube and a release position to disengage the tube. 3. The tube bender of claim 1, wherein movement of the first die and the second die is out of phase to each other. 4. The tube bender of claim 1, wherein the first die, the second die, the third die and the fourth die are adapted to engage the tube sequentially as the first rotating member and the second rotating member rotate. 5. The tube bender of claim 1, wherein the first rotating member and the second rotating member rotate substantially 90-degrees out of phase relative to each other. 6. The tube bender of claim 1, further comprising a feed roll adapted to pay out the tube toward tube-receiving end of the frame. 7. The tube bender of claim 6, further comprising a spine fin wrapper interposed between the feed roll and the tube-receiving end of the frame, wherein the spine fin wrapper is adapted to wrap a heat conductive member around the tube. 8. The tube bender of claim 1, wherein the first die is further moveable between an operative position and a retracted position, wherein the operative position allows the first die to engage the tube and the retracted position allows the first die to travel past the tube. 9. The tube bender of claim 8, further comprising a cam surface associated with the first die, wherein the first die moves between the operative position and the retracted position in response to the die moving relative to the cam surface. 10. The tube bender of claim 8, further comprising a spring that urges the first die to the retracted position.