Rankine cycle device having multiple turbo-generators
First Claim
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1. An apparatus for generating power using a heat stream, the apparatus comprising:
- an evaporator operable to be disposed within the heat stream;
a first turbo-generator that includes a turbine coupled with an electrical generator, the first turbo-generator connected to the evaporator to receive refrigerant from the evaporator;
a second turbo-generator that includes a turbine coupled with an electrical generator, the second turbo-generator connected to the evaporator in parallel to the first turbo-generator to receive refrigerant from the evaporator;
a condenser connected to the first turbo-generator and the second turbo-generator to receive refrigerant therefrom, the condenser having a first shell-side exit port at a first location, a second shell-side exit port at a second location and a plurality of tubes disposed within a housing, the plurality of tubes configured to permit a flow of coolant to enter the condenser, flow through the plurality of tubes and exit the condenser;
a first refrigerant feed pump connected to the first shell-side exit port of the condenser to pump refrigerant from the condenser to the evaporator; and
a second refrigerant feed pump connected to the second shell-side exit port of the condenser to pump refrigerant from the condenser to the evaporator.
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Abstract
A method for generating power, comprising the steps of: a) providing a Rankine Cycle device that includes a plurality of turbo-generators, each including a turbine coupled with an electrical generator, and at least one of each of an evaporator, a condenser, and a refrigerant feed pump; b) disposing the one or more evaporators within an exhaust duct of a power plant of a marine vessel; c) operating the power plant; and d) selectively pumping refrigerant through the Rankine Cycle device.
138 Citations
11 Claims
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1. An apparatus for generating power using a heat stream, the apparatus comprising:
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an evaporator operable to be disposed within the heat stream; a first turbo-generator that includes a turbine coupled with an electrical generator, the first turbo-generator connected to the evaporator to receive refrigerant from the evaporator; a second turbo-generator that includes a turbine coupled with an electrical generator, the second turbo-generator connected to the evaporator in parallel to the first turbo-generator to receive refrigerant from the evaporator; a condenser connected to the first turbo-generator and the second turbo-generator to receive refrigerant therefrom, the condenser having a first shell-side exit port at a first location, a second shell-side exit port at a second location and a plurality of tubes disposed within a housing, the plurality of tubes configured to permit a flow of coolant to enter the condenser, flow through the plurality of tubes and exit the condenser; a first refrigerant feed pump connected to the first shell-side exit port of the condenser to pump refrigerant from the condenser to the evaporator; and a second refrigerant feed pump connected to the second shell-side exit port of the condenser to pump refrigerant from the condenser to the evaporator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification