1. Micro Motion, Inc.
Gas Measurement

2. Precision Gas Measurement
Agenda
Why Coriolis for Gas?
Third Party Compressed Air Test Results
Test Configuration and Methodology
CMF100 (1?
CMF200 (2?
CMF300 (3?
Application Examples
Compressed Natural Gas Vehicle Filling
Ethylene Gas Custody Transfer

3. Why Use Coriolis Technology For Precision Gas Measurement?
Because Coriolis Meters Measure:
Direct Mass Flow Rate
Temperature and pressure measurements are not required for fluid calculations
Flow computers are eliminated
High Accuracy
Mass flow accuracy of ?.5% 켣S for turndown up to 100:1
Gas density measurement accuracy of ?.002 g/cc
No Calibration Shift with Changing Density or Gas Properties
Micro Motion factory water calibration accurately transfers to gas
Measurement accuracy verified by independent testing at gas pressures from 25 to 1450 psia

4. Why Use Coriolis Technology for Precision Gas Measurement?
Because Coriolis Meters are:
Independent of Flow Profile
No straight run required
Low Maintenance
No moving parts, so no time dependent calibration shift
Non-intrusive
Multi-Variable Device
Mass flow, density, temperature from one installed device
Fewer potential emission points with a minimum of pipe breaks

5. Coriolis Product Line Typical Flowmeter Configuration
Sensor
Transmitter
DCS or PLC
Peripheral
Device

6. Gas Proving - Sonic Venturi
Testing Conducted at Colorado Engineering & Experimental Station, Inc. (CEESI)
NIST Traceable Calibrations
Compressed air used as calibration fluid
Pressure range from 25 psia to 1450 psia
Sonic venturis used as reference
Stated lab accuracy = ?.5% of mass rate

7. Gas Proving Schematic Compressed air at 2000 psi Sonic Venturi
Discharge to
Atmosphere
Pressure Control
Valve
Rate Control
Valve

8. Detail of Sonic Venturi
If the pressure ratio between Pi and Patm is maintained above the 밹ritical ratio?then the velocity at the throat is equal to the sonic velocity of the gas (air)
The throat area is known (measured)
Pi and Ti are measured to calculate density
Mass Rate = (Velocity) * (Area) * (Density) Pi Ti
Patm
Throat

9. CMF100 Gas Performance Results
Proprietary Information

10. CMF200 Gas Performance Results
Proprietary Information

11. CMF300 Performance Results
PRELIMINARY
Proprietary Information

12. CNG Application Example
Compressed Natural Gas (CNG)
Vehicle fuel filling
Continuously varying mass flow rate and pressure
Peak rate of up to 50 lbs/min
Vehicle pressure varies from 0 up to 3000 psi
Custody transfer; Typically ?.5% batch accuracy
MMI DH025S (and DH038S more recently) meters have been used successfully for over 10 years
More than 6,000 units installed since 1984
Proprietary Information

13. CNG Metering Schematic
3000 psi Natural
Gas Storage
Flow Direction

14. Typical CNG Filling Cycle (Data from DH038S test at IGT, 14 January 1994)
Note: Batch Accuracy = +0.3%

15. CNG Vehicle Fueling

16. Ethylene Gas Custody Transfer
Pipeline transfer between refinery and plastics plant
Process conditions
385 psig
70?F
Maximum mass flow rate: 660 lbs/min
Pay and check meters for fiscal measurement
Measurement accuracy improved from 3% to 0.3% by use of Coriolis flowmeters ($81,000 per month savings)
Coriolis flowmeters replaced gyroscopic / dP technologies
20 day trial period - 10,000,000 lbs of ethylene transferred
Monthly accounting disputes resolved
Routine maintenance eliminated / on-line time improved

17. Ethylene Source (Previous Configuration)
Hydrogen
Refinery
Processes
Light Petroleum
gases
Gyroscopic
Flowmeter dP
Ethylene
Vapor
Recovery
Systems
Plastics
Plant
Ethane
Gasoline
LPG
Diesel
Jet Fuel
Fuel Oil
Asphalt

18. Ethylene Source (Current Configuration)
Hydrogen
Refinery
Processes
Light Petroleum
gases
Ethylene
Vapor
Recovery
Systems
Ethane
Gasoline
LPG
Diesel
Jet Fuel
Fuel Oil
Asphalt

19. Custody Transfer of Ethylene Gas (C2H4)

20. Accuracy Specification for Gas Applications
Gas Flow Rate Accuracy = ?0.5% ?ZS / Rate * 100%
Specification is based on Third Party testing
Accuracy unaffected by gas properties: Temperature, Pressure, Composition
Density Accuracy = ?0.002 g/cc
Note 1: Accuracy statements are for Micro Motion Elite Sensor and Transmitter
Note 2: Liquid Flow Rate Accuracy = ?.1% ?ZS / Rate *100%
Liquid Density Accuracy = ? g/cc

21. Transfer of Natural Gas - Australia
Summary
Fiscal transfer from gas utility to industrial user
Process Conditions:
Natural Gas
P=450 psig (31 bar); T=ambient
Qm=400-20,000 kg/h ( lb/min);50:1 operating range
Qu=158, ×106 nm3/hr ( ,000 scfm
Three CMF300 flowmeters installed in parallel
Two perate, one 밾ot spore
Third party tests show ?.5% mass flow accuracy (Pigsar/Ruhrgas; Dorsten, Germany)

22. Transfer of Natural Gas - Australia
36?(900mm) main line
Take-off
line
Take-off line
Alinta
Gas
Pipeline
(3) CMF300 Flowmeters BP
Cogeneration
Project
8?(200mm) line

23. Transfer of Natural Gas - Previous Installation
Turbine meter skid 6?x 80?(2m x 25m)

24. Transfer of Natural Gas - Current Configuration with Coriolis Meters

25. Natural Gas Testing - Pigsar, Dorten, Germany
Model CMF300 Flowmeter
Master Turbine Meters

26. Pressure and Temperature Effects
Pressure Effect
Temperature Effect
Calibration Change, Zero Change,
Size % per psi lbs./min per 캜
CMF None ?0.0001
CMF None ?0.0003
CMF ?0.001
CMF ?0.016
CMF ?0.050

27. Conclusions
Coriolis meters provide accurate mass flow rate measurement of gas, ?0.5% ?ZS and density, g/cc
Factory water calibration applies to gas over 25 to 1450 psia
Direct mass flow rate measurement is virtually unaffected by changes in gas temperature, pressure, composition, and flow profile
Routine maintenance virtually eliminated due to no moving parts
Third party testing has confirmed performance of the Elite CMF100, CMF200, and CMF300 on compressed air
Multi-variable device with a minimum of pipe breaks

28. Conclusions
Coriolis meters provide accurate mass flow rate measurement of gas, ?0.5% ?ZS and density, g/cc
Factory water calibration applies to gas over 25 to 1450 psia
Direct mass flow rate measurement is virtually unaffected by changes in gas temperature, pressure, composition, and flow profile
Routine maintenance virtually eliminated due to no moving parts
Third party testing has confirmed performance of the Elite CMF100, CMF200, and CMF300 on compressed air
Multi-variable device with a minimum of pipe breaks