• ISA77.42, Feedwater Controls


    Scope

    The scope of this standard is to address the major steam temperature control subsystems in boilers with steaming capacities for 200,000 lb/hr (25 kg/s) or greater. These subsystems include, but are not limited to, superheat temperature control, reheat temperature control. Specifically excluded from consideration are turbine bypass control, motor control logic, combustion control, sootblower control, as well as all controls associated with fluidized bed and stoker fired furnace combustion units.

    Purpose

    The purpose of this standard is to establish the minimum requirements for the functional design specifications of steam temperature control systems for drum-type fossil-fueled power plant boilers.

    Standards and Technical Reports

    ANSI/ISA-77.42.01-1999 (R2011), Fossil Fuel Power Plant Feedwater Control System - Drum Type

    ISA-TR77.42.02-2014, Fossil Fuel Power Plant Compensated Differential Pressure Based Drum Level Measurement

    A Word from the Chairman

    ANSI/ISA-77.42.01-1999 (R2011) is currently in its revision cycle.  For more information, please contact

    Eliana Brazda
    ISA Standards Administrator
    ebrazda@isa.org
    (919) 990-9228

    Jerry Gilman
    ISA77.42 Chair

  • Contacts

    Managing Director
    Joseph Weiss

    joe.weiss@realtimeacs.com
    (408) 2537934

    Voting Member Chair
    Michael Cushing

    michael.cushing@honeywell.com
    (215)356 4137

    Voting Member Chair
    Jerry Gilman

    jgilman@cinci.rr.com
    (513) 5224154

    Voting Member
    Robert Eng

    robert.eng@mhpowersystems.com
    (908) 6052765

    Voting Member
    Paul Hollingshead

    throttleman01@att.net
    (330)854 9218

    Voting Member
    Robert Hubby

    bob.hubby@verizon.net
    (508) 3622317

    Voting Member
    Daniel Lee

    dan.lee@us.abb.com
    (440) 5856063

    Staff Contact
    Eliana Brazda

    ebrazda@isa.org
    (919) 9909228

    Staff Contact
    Linda Wolffe

    lwolffe@isa.org
    (919) 9909257