Answer to Question #194639 in Mechanical Engineering for randz

Question

4. To what temperature must a rigid tank containing dry and saturated steam at 130 o C be

cooled to yield a mixture of 25 % quality.

Answer 1

This is an unsteady process since the conditions within the device are changing during the process, but it 

can be analyzed as a uniform-flow process since the state of fluid leaving the device remains constant. Kinetic and 

potential energies are negligible. There are no work interactions involved. The direction of heat transfer is to the tank 

(will be verified).