|
Interest in coal shrinkage and swelling dates back almost
100 years, table below lists various studies undertaken from the turn of
the last
century to the present day.
Reference |
Gas |
swelling/shrinkage coefficient,MPa-1 |
Moffat & Weale (1955)
|
CH4 |
1.17 x 10-8 |
Gunther (1968)
|
CH4 |
1.90 x 10-8 - 4.76 x 10-8 |
| Wubben, Seewald and Jurgen (1986) |
CH4 |
9.65 x 10-9 - 4.76 x 10-8 |
Reucroft & Patel (1986)
|
CO2 |
4.52 x 10-7 |
Gray (1987)
|
CH4 |
1.25 x 10-4 |
Gray (1987)
|
CO2 |
1.82 x 10-3 |
Juntgen (1987)
|
CH4 |
1.77 x 10-6 |
| Harpalani & Schraufnagel (1990) |
CH4 |
4.27 x 10-8 |
Harpalani & Chen (1997)
|
CH4 |
2.30 x 10-8 |
St. George & Barakat (2001)
|
CH4 |
1.20 x 10-3 |
St. George & Barakat (2001)
|
CO2 |
5.20 x 10-3 |
Seidle & Huitt (1995)
|
CH4 |
1.96 x10-4 |
Seidle & Huitt (1995)
|
CO2 |
1.78 x10-4 |
Levine (1996)
|
CH4 |
1.30 x10-3 |
Levine (1996)
|
CO2 |
5.50 x 10-3 |
Dunn & Alehossein (2002)
|
CH4 |
1.77 x 10-3 - 1.95 x 10-3 |
contd.. |
