Flow and pressure estimators in a waste heat recovery system

    公开(公告)号:US10287923B2

    公开(公告)日:2019-05-14

    申请号:US14974497

    申请日:2015-12-18

    Applicant: Cummins, Inc.

    Abstract: An apparatus includes a pump circuit structured to receive pump data indicative of an operating characteristic of a pump feeding a fluid to a waste heat recovery (WHR) system; a flow circuit structured to receive valve position data indicative of a position of a valve downstream of the pump, estimate a flow rate of the fluid exiting the pump, and estimate the flow rate of the fluid exiting the valve; and a pressure circuit structured to receive pressure data indicative of the pressure of the fluid exiting the valve, estimate a change in pressure of the fluid across the WHR system, and determine a pressure of the fluid in a hot section of the WHR system based on the pressure of the fluid exiting the valve and the change in the pressure of the fluid across the WHR system.

    FLOW AND PRESSURE ESTIMATORS IN A WASTE HEAT RECOVERY SYSTEM

    公开(公告)号:US20170175586A1

    公开(公告)日:2017-06-22

    申请号:US14974497

    申请日:2015-12-18

    Applicant: Cummins, Inc.

    CPC classification number: F01K23/065 F01K13/02 F01K27/02

    Abstract: An apparatus includes a pump circuit structured to receive pump data indicative of an operating characteristic of a pump feeding a fluid to a waste heat recovery (WHR) system; a flow circuit structured to receive valve position data indicative of a position of a valve downstream of the pump, estimate a flow rate of the fluid exiting the pump, and estimate the flow rate of the fluid exiting the valve; and a pressure circuit structured to receive pressure data indicative of the pressure of the fluid exiting the valve, estimate a change in pressure of the fluid across the WHR system, and determine a pressure of the fluid in a hot section of the WHR system based on the pressure of the fluid exiting the valve and the change in the pressure of the fluid across the WHR system.

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