Once-through evaporator systems
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United States of America Patent
Stats
-
Feb 8, 2022
Grant Date -
Jun 13, 2019
app pub date -
Nov 19, 2018
filing date -
Dec 8, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present application provides a method of adjusting a feedwater mass flow rate to maintain a constant steam temperature in an evaporator section. The method may include the steps of determining a change in a number of operational parameters, predicting a change in steam temperature based on the number of operational parameters, combining the predicted changes in steam temperature, determining a feedforward signal based on dynamically offsetting the combined predicted changes in steam temperature, and changing the mass flow rate of feedwater based on the feedforward signal.
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International Classification(s)
- 2018 Application Filing Year
- F25B Class
- 1289 Applications Filed
- 839 Patents Issued To-Date
- 65.09 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F25B Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 8, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 8, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 8, 2033 |