Back to results
US 10,662,821 B2Granted
Heat recovery
AssigneeHighview Enterprises Limited
InventorNicola Castellucci
Life of this patent
Estimating the term…
Abstract
A power recovery system for recovering power from a working fluid, comprising a heat exchanger that is configured to receive a first stream of the working fluid, one or more expansion stages for expanding the working fluid to recover power from the working fluid, wherein one or more of the expansion stages is in fluid communication with the heat exchanger, wherein the heat exchanger is configured to transfer heat between the first stream of the working fluid and another stream of the working fluid that is received from one or more of the expansion stages.
Claims30
A power recovery system for recovering power from a working fluid, comprising:
- a first heat exchanger that is configured to receive a first stream of the working fluid;
- and
- one or more expansion stages for expanding the working fluid to recover power from the working fluid, wherein the one or more expansion stages is in fluid communication with the first heat exchanger,
- wherein the first heat exchanger is configured to transfer heat between the first stream of the working fluid and a second stream of the working fluid that is received from the one or more expansion stages;
- wherein the first heat exchanger is configured to transfer heat from the first stream of the working fluid to the second stream of the working fluid that is received from the one or more expansion stages;
- wherein the heat that is transferred by the first heat exchanger is recovered by cooling the first stream of the working fluid;
- wherein the first heat exchanger is configured to receive the first stream of the working fluid from a working fluid input;
- wherein the working fluid input comprises:
- a source of a liquid,
- a pump for pumping the liquid to a high pressure, and
- an evaporator for evaporating the liquid to form a gaseous working fluid;
- and wherein the source of the liquid comprises a liquid storage tank or a condenser for producing the liquid from a gas.
9 more elements
A power recovery system for recovering power from a working fluid, comprising:
- a first heat exchanger that is configured to receive a first stream of the working fluid;
- and
- one or more expansion stages for expanding the working fluid to recover power from the working fluid, wherein the one or more expansion stages is in fluid communication with the first heat exchanger;
- wherein the first heat exchanger is configured to transfer heat between the first stream of the working fluid and a second stream of the working fluid that is received from the one or more expansion stages;
- wherein the first heat exchanger is configured to cool the first stream of the working fluid to an inlet temperature of a first expansion stage prior to the first stream of the working fluid being expanded in the first expansion stage;
- wherein the first expansion stage is configured to return expanded working fluid to the first heat exchanger as the second stream of the working fluid;
- wherein the first heat exchanger is configured to transfer heat from the first stream of the working fluid to the second stream of the working fluid and output the heated second stream of the working fluid as a third stream of the working fluid;
- further comprising a second expansion stage that is configured to receive the third stream of the working fluid and expand the third stream of the working fluid to recover power from the third stream of the working fluid;
- and
- further comprising a second heat exchanger that is configured to cool the third stream of the working fluid to an inlet temperature of the second expansion stage prior to the third stream of the working fluid being expanded in the second expansion stage.
7 more elements
A method of using a working fluid within a power recovery system comprising:
- providing a first heat exchanger within the power recovery system with a first stream of the working fluid;
- and
- using the first heat exchanger to transfer heat between the first stream of the working fluid and a second stream of the working fluid that is received from one or more expansion stages;
- wherein the first heat exchanger is configured to transfer heat from the first stream of the working fluid to the second stream of the working fluid that is received from the one or more expansion stages;
- wherein the heat that is transferred by the first heat exchanger is recovered by cooling the first stream of the working fluid;
- wherein the first heat exchanger is configured to receive the first stream of the working fluid from a working fluid input;
- wherein the working fluid input comprises:
- a source of a liquid,
- a pump for pumping the liquid to a high pressure, and
- an evaporator for evaporating the liquid to form a gaseous working fluid;
- and wherein the source of the liquid comprises a liquid storage tank or a condenser for producing the liquid from a gas.
8 more elements
Dependencies are inferred from the claim text.