Patent ID: 11874033
Assignee: HILL PHOENIX, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 16:
17. A method comprising:
identifying a refrigeration system comprising:
one or more compressors,
one or more evaporators,
a piping assembly fluidly coupled to and interconnecting the one or more compressors to the one or more evaporators,
a working fluid configured to flow in the piping assembly from the one or more evaporators to the one or more compressors; and
one or more sensors fluidly coupled to the refrigeration system, the one or more sensors configured to sense fluid information comprising a parameter of the working fluid in the refrigeration system;

comparing, the parameter of the working fluid to a fluid parameter threshold;
determining that the parameter of the working fluid satisfies the fluid parameter threshold, wherein the parameter of the working fluid comprises at least one of a temperature of the working fluid, a pressure of the working fluid, or a velocity of the working fluid, and the fluid parameter threshold comprises (i) a respective temperature threshold of the working fluid that indicates a low load condition of the refrigeration system, (ii) a pressure threshold of the working fluid that indicates the low load condition of the refrigeration system, or (iii) a respective velocity threshold of the working fluid that indicates a reduced velocity of the working fluid, and determining that the parameter of the working fluid satisfies the fluid parameter threshold comprises determining that the parameter of the working fluid is at or below the fluid parameter threshold; and
changing, based on an indication of the temperature of the working fluid, an indication of the pressure of the working fluid, or an indication of reduced velocity of the working fluid along the piping assembly, an operation parameter of a component of the refrigeration system, thereby increasing at least one of: (i) the velocity of the working fluid in the piping assembly fluidly coupled to the one or more compressors, or (ii) a flow rate of an oil in the piping assembly flowing into the one or more compressors.