Control of a pressure exchanger system

A method comprising:

• receiving first sensor data associated with a first fluid prior to the first fluid entering a first inlet of a pressure exchanger (PX), wherein the PX is configured to receive the first fluid via the first inlet of the PX, receive a second fluid via a second inlet of the PX, and exchange pressure between the first fluid and the second fluid, wherein the first fluid is to exit the PX via a first outlet of the PX, and wherein the second fluid is to exit the PX via a second outlet of the PX;
• causing a bearing valve fluidly coupled to a housing of the PX to actuate to provide first fluid to the housing of the PX;
• receiving second sensor data associated with the second fluid prior to the second fluid entering the second inlet of the PX;
• receiving user input associated with a target flowrate of the first fluid into the first inlet;
• causing a first valve disposed upstream of the first inlet of the PX to actuate based on the user input and the first sensor data to cause a first adjustment of a first flowrate of the first fluid into the first inlet;
• and
• causing a second valve disposed downstream of the first outlet of the PX to actuate based on the first sensor data and the second sensor data to cause a second adjustment of a second flowrate of the second fluid into the second inlet.

A controller comprising:

• memory;
• and
• a processing device coupled to the memory, wherein the processing device is to:
• receive first sensor data associated with a first fluid prior to the first fluid entering a first inlet of a pressure exchanger (PX), wherein the PX is configured to receive the first fluid via the first inlet of the PX, receive a second fluid via a second inlet of the PX, and exchange pressure between the first fluid and the second fluid, wherein the first fluid is to exit the PX via a first outlet of the PX, and wherein the second fluid is to exit the PX via a second outlet of the PX;
• cause a bearing valve fluidly coupled to a housing of the PX to actuate to provide first fluid to the housing of the PX;
• receive second sensor data associated with the second fluid prior to the second fluid entering the second inlet of the PX;
• receive user input associated with a target flowrate of the first fluid into the first inlet;
• cause a first valve disposed upstream of the first inlet of the PX to actuate based on the user input and the first sensor data to cause a first adjustment of a first flowrate of the first fluid into the first inlet;
• and
• cause a second valve disposed downstream of the first outlet of the PX to actuate based on the first sensor data and the second sensor data to cause a second adjustment of a second flowrate of the second fluid into the second inlet.