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US 2025/0027696 A1Published application
Hot Gas Defrost Using a Work Recovery Device
AssigneeHeatcraft Refrigeration Products LLC
InventorSaravana Vaithilingam Sakthivel
Life of this patent
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Abstract
A refrigeration system comprises a gas cooler, a flash tank, a work recovery device located downstream from the gas cooler, one or more evaporators unit located downstream from a second outlet of the work recovery device, and a controller communicatively coupled to the work recovery device.
Claims16
A refrigeration system, comprising a gas cooler, a flash tank, a work recovery device located downstream from the gas cooler, and a controller communicatively coupled to the work recovery device, wherein:
- the flash tank is configured to store refrigerant;
- the gas cooler is configured to receive the refrigerant and facilitate heat transfer from the received refrigerant, thereby cooling the refrigerant;
- the controller is configured to:
- turn on the work recovery device;
- cause the work recovery device, while turned on, to:
- receive, at a first inlet, a flow of refrigerant cooled by the gas cooler;
- reduce a pressure of the first flow of refrigerant;
- provide, from a first outlet, the first flow of refrigerant to the flash tank;
- wherein the work recovery device comprises one of a turbine, a rotating device, an expander, a scroll expander, or a reciprocating piston expander.
6 more elements
A method of operating a refrigeration system, the method comprising:
- turning on a work recovery device;
- causing the work recovery device, while turned on, to:
- receive, at a first inlet, a flow of refrigerant cooled by a gas cooler;
- reduce a pressure of the first flow of refrigerant;
- and
- provide, from a first outlet, the first flow of refrigerant to a flash tank;
- wherein the work recovery device comprises one of a turbine, a rotating device, an expander, a scroll expander, or a reciprocating piston expander.
4 more elements
Dependencies are inferred from the claim text.