Question

which gas is used to cool machines?​

Answer 1

Answer:

Depending on the system design, nitrogen can be used for accelerated cool downs in either a gaseous or liquid phase ranging from -196˚C to +400˚C. During a once-through (gas-phased) cool down, nitrogen gas is pumped through a process system.

Explanation:

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Answer 2

Answer

Depending on the system design, nitrogen can be used for accelerated cool downs in either a gaseous or liquid phase ranging from -196˚C to +400˚C. During a once-through (gas-phased) cool down, nitrogen gas is pumped through a process system.

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