Answer:
The term you are looking for is recovery. The process of recovering refrigerant is to remove some or all the refrigerants of a system and deposit it in an external storing for further processing or storage. This recovered refrigerant won´t be used again in the system in any near time period.
If the refrigerant is removed to be instantly processed and cleaned to be reutilized in the same system, this action is known as recycling.
Answer:
rounding
Explanation:
each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first non-zero digit.
Answer:

Explanation:
The pressure drop is directly proportional to the length of the pipe. Then, the new pressure drop is two time the previous one.

Answer:
We conclude that the approximate series solution (with only one eigein value) provides systematically high results but by less than 1.5%, for the biot number range from 0.11 to 10. See attached image.
Explanation: