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LNG Tank Gauging Case Study

Client Background: A major LNG terminal operator with several storage tanks.

Challenge: The client needed to improve their inventory management and ensure accurate measurement of LNG levels in their storage tanks.

Solution: They decided to implement a state-of-the-art LNG tank gauging system. This system included:

  1. Guided Wave Radar (GWR) Level Transmitters: Installed on each tank, these transmitters accurately measure the level of LNG in the tanks using radar technology. They provide continuous, real-time level data.
  2. Temperature and Pressure Sensors: Placed strategically, these sensors measure the temperature and pressure of the LNG, which are crucial for accurate volume calculations.
  3. Tank Gauging System (TGS): The TGS integrates all the data from the level transmitters, temperature sensors, and pressure sensors. It calculates the volume of LNG in each tank based on the measured data.
  4. SCADA System: The TGS is connected to a Supervisory Control and Data Acquisition (SCADA) system, which provides a user interface for monitoring the LNG levels and other parameters. It also allows operators to set alarms for critical conditions.

Outcome: After implementing the LNG tank gauging system, the client experienced several benefits:

  1. Improved Accuracy: The system provided highly accurate and reliable measurements of LNG levels, helping the client manage their inventory more effectively.
  2. Cost Savings: By reducing the risk of overfilling or underfilling tanks, the system helped the client avoid costly errors.
  3. Enhanced Safety: Accurate measurement of LNG levels is crucial for safety. The system helped ensure that tanks were neither overfilled nor underfilled, reducing the risk of accidents.
  4. Operational Efficiency: The real-time data provided by the system allowed operators to make informed decisions quickly, improving overall operational efficiency.

The implementation of an LNG tank gauging system helped the client improve inventory management, enhance safety, and achieve cost savings, demonstrating the value of such systems in LNG storage facilities.