Year
|
Service
|
Features of Plant
|
Inlet Flow & Pressure
|
Role in Project
|
|
1997
|
Goaf
|
*Fixed plant
*Three liquid-ring vacuum pumps *75kW electric motors/V belt drives
*Manual flow control by recirculation
|
1,500 actual litre/s
-50 kPa gauge
|
*Devised process concept
*Sized and specified equipment
*Wrote Functional Specification
*Led design review/HAZOP
*Oversaw mechanical commissioning
|
|
1999
|
Goaf
|
*Upgraded goaf plant for four vacuum pumps
*Redesign of separators
*Addition of inlet dropout box
*Rework of pipework
|
2,000 actual litre/s
-50 kPa gauge
|
*Retained existing process
*Carried out calculations
*Engineered separators, pipework, etc. for detailing by others
|
|
1998
|
Flare
|
*Vertical stack flare
*Methane from existing goaf plant
*Reduce greenhouse gas emissions under Shell Coal policy
|
1,100 litre/s
|
*Devised process concept to modify/connect to goaf plant
*Sized and specified equipment and stack, for detailing by others
|
|
1998
|
In-seam
|
*Movable plant
*Centrifugal fan
*55kW electric motor/VVVF drive
*Automatic flow control by variable speed
|
2,000 actual litre/s
-12 kPa gauge
|
*Devised process concept
*Sized and specified equipment
*Wrote Functional Specification
*Led design review/HAZOP
*Led design team
*Oversaw mechanical commissioning
|
|