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Control system for fluid heated steam generator

Patent ·
OSTI ID:865494
 [1];  [2]
  1. Bonneville County, ID
  2. Idaho Falls, ID
+ Show Author Affiliations

A control system for controlling the location of the nucleate-boiling region in a fluid heated steam generator comprises means for measuring the temperature gradient (change in temperature per unit length) of the heating fluid along the steam generator; means for determining a control variable in accordance with a predetermined function of temperature gradients and for generating a control signal in response thereto; and means for adjusting the feedwater flow rate in accordance with the control signal.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
DOE Contract Number:
W-31109-ENG-38
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4526136
OSTI ID:
865494
Country of Publication:
United States
Language:
English

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Related Subjects

/122/
accordance
adjusting
change
comprises
comprises means
control
control signal
control variable
controlling
determining
feedwater
feedwater flow
flow
flow rate
fluid
fluid heat
fluid heated
function
generating
generator
generator comprises
gradient
gradients
heated
heated steam
heating
heating fluid
length
location
means
measuring
nucleate-boiling
predetermined
rate
region
response
response thereto
signal
steam
steam generator
temperature
temperature gradient
temperature gradients
thereto
unit
variable
water flow