Patent ID: 11927378
Assignee: ROLLS-ROYCE PLC
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F  G

Claim 7:
8. A system configured to utilise a working fluid in a transcritical cycle passing through the critical point, wherein the system includes a sensor assembly comprising:
a component through which the working fluid flows, and, within a predetermined region of which the crossing of the critical point of the working fluid is desired to occur;
a first conduit upstream of the component for conveying the working fluid to the component;
a second conduit downstream of the component for conveying the working fluid away from the component;
a first broadband acoustic sensor upstream of the component and a second broadband acoustic sensor downstream of the component, each of which are arranged to detect high-frequency and low-frequency sounds caused by the crossing of the critical point; and
a flow regulation device configured to regulate flow of the working fluid through the component in response to the output of one or more of the first broadband acoustic sensor and the second broadband acoustic sensor, thereby adjusting the location of the crossing of the critical point.