Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Turbine Flow Meter (TFM) Field Calibration Uncommon Request
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Root Cause Analysis (RCA) > Turbine Flow Meter (TFM) Field Calibration Uncommon Request

Turbine Flow Meter (TFM) Field Calibration Uncommon Request

Instrumentation engineering root cause analysis of turbine flow meter (TFM) field calibration in a urea plant.

Last updated: September 28, 2022 2:56 pm
S Raghava Chari
Root Cause Analysis (RCA)
No Comments
Share
3 Min Read
SHARE

Instrumentation engineering root cause analysis of turbine flow meter (TFM) field calibration in a urea plant.

Contents
Turbine Flow Meter (TFM) ProblemAuthor solutionBenefits Realized
Article Type:Root Cause Analysis (RCA)
Category:Instrumentation
Equipment Type:Sensors
Author:S. Raghava Chari

Note: This root cause analysis (RCA) is from real-time scenarios that happened in industries during the tenure of two or three decades ago. These articles will help you to improve your troubleshooting skills and knowledge.

Turbine Flow Meter (TFM) Problem

The US Process Licensor (UPL) insisted to calibrate the liquid NH3 flow through the turbine flow meter (TFM) before the urea plant guarantee test.

He turned a deaf ear to the author’s explanation that field calibration is rare and impractical; users trust the manufacturer calibration, which is stable over long periods.

Also Read: Turbine Flow Meter Calibration Procedure

Author solution

He connected a fire hydrant with a fire hose to the turbine flow meter (TFM) inlet, collected the TFM exiting the water in a chassis-mounted tanker that haul 25000 kg Phosphoric acid from the port to the plant (below figure), and weighed the empty and water-filled tanker.

Turbine Flow Meter (TFM) Field Calibration

The instrument crew set the TFM read-out counter’s scalar switches each count for 50 Kg Water flows the least the readout permits to maximize reading accuracy.

The TFM integrator read flow quantities at 33%, 66%, and 100% of max TFM flow rates differed from weighed quantities by 0.1% only against the

The turbine flow meters (TFM’s) guaranteed 0.25% uncertainties. The instrument crew calibrated and found the road weigh scale that weighed the tanker was 0.02% accurate against the guaranteed 0.046% i.e. around 6 times more accurate than the TM guaranteed accuracies.

Benefits Realized

Realized benefits are:

  1. The satisfied process licensor completed the guarantee test,
  2. The guarantee test identified 5% higher than guaranteed specific ammonia consumption per ton of urea.
  3. The licensor root cause analyzed and corrected the deficiencies
  4. The repeat guarantee test shown ammonia specific consumption was acceptable
  5. The vendor got his final payment and left
  6. The correct ammonia specific consumptions benefit the plant too forever.

Author: S. Raghava Chari

Do you face any similar issues? Share with us through the below comments section.

If you liked this article, then please subscribe to our YouTube Channel for Instrumentation, Electrical, PLC, and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

  • Level Transmitters Zero Drifts
  • Pitot-tube Replaced with Orifice
  • Mechanical Temperature Indicator
  • Pressure Transmitter Stopped Working
  • Seal Pressure Instruments Problems
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Root Cause Analysis for FRP Line Damaged due to On-Off Valve
Antifriction Bearings Caused Machine Changeovers Posed Outages
Fasteners and General Corrosion of Electrical Motors
Process Air Compressor too Frequent & too Lengthy Overhauls Eliminated
Heat Exchanger Root Cause Analysis (RCA)
CO2 Stripper Old Differential Pressure Transmitter Stopped Working
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Target Flow Transmitters Failed the Very Midnight
Under and Over-Capacity Control Valve Pose Poor Controllability
Erratic Stroking Control Valves Delaying the Shutdown Plant Restart
Replace Failed Motors Quickly and Easily
NH3 Storage Tanks Ammonia Gas Venting Issue – Root Cause Analysis
Incident Investigation: Motor Operated Valve Lesson
Gearbox within week Failing Journal Bearing upset Plant Operations
Instrument Steam Pressure Taps Primary Block Valves Glands and Bonnets Leaks

Keep Learning

Thermowell Shank to Flange Repeat Weld Leaks

Thermowell Shank to Flange Repeat Weld Leaks

HT motors Corrosion Problem

HT motors Corrosion Problem

Jacket Added Seawater Pipe Spool

Seawater Pipeline Spools from day-1 leaks threaten Plant Shutdown

Plant Air Storage Tank

Plant Air Storage Tank Pressure Fluctuations Root Cause Analysis

Finned Heater Leaks Sealed

Finned Tube Steam Leaks – Root Cause Analysis

Compressor Cracked Shaft Spacers

Compressor Cracked Shaft Spacers

Innovative Segment Orifice

Pitot-tube Replaced with Innovative Segment Orifice Plate

Piston No-Diaphragm Seal Instrument

Seal Pressure Instruments Root Cause Analysis

Learn More

Determine Resistance value of Resistors

Determine Resistance value of Resistors

Difference Between Process and Project

Difference Between Process and Project

Example of PID Control Instruction

How to Configure PID in Siemens PLC?

Manufacturing Execution System in Industrial Automation

Manufacturing Execution System (MES) in Industrial Automation

Comparison of Level Meters - Level Measurement Instruments

Comparison of Level Meters – Level Measurement Instruments

Gas-detection-system

Selection Criteria for Toxic Gas Detector

Synchronous Motor Working Principle

What is a Spool valve

What is a Spool Valve? – Types, Configurations, Applications

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?