|
Back to
Lab Facilities
Each cryogenic vat in the cryo-storage room is supplied by a liquid nitrogen bulk tank situated in the staff only courtyard of the AMNH and connected through a system of vacuum jacketed pipes.The bulk tank is resting in a restricted area, surrounded with 8-foot fences. Only the Collection Manager and AMNH Security has access to the tank.
Liquid Nitrogen Bulk Tank oustide the cryo-storage room
The bulk tank has a capacity of 3000 galons. The pressure in the tank is constant at 20 psi.
The choice of using a bulk supply of nitrogen for the AMCC cryogenic vats was dictated both on economical and safety basis. Because of a bulk supply of liquid nitrogen, the risk of supply failure, as well as mechanical wear-out of the cryogenic vats is vastly reduced, if not eliminated.
Back to the top
The liquid nitrogen travels to each vat
through a system of vacuum jacketed pipes which has two main
advantages:
- Preventing the release of pressurized nitrogen due to a leak
- Economising the amount of liquid nitrogen used by preventing the nitrogen to evaporate into gas due to external warming conditions before reaching the vats
Vacuum Jacketed Pipes connecting the bulk tank to each vat in the cryo-storage room
The bulk tank is monitored every day on a spreadsheet including the levels of nitrogen in inches, centimetres and the amount of pressure allowing us to draw an average consumption of liquid nitrogen per day, month and year.
Back to the top
Back to Lab Facilities
|
