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In your refrigerator, the working substance evaporates
Chapter 2, Problem 48HP(choose chapter or problem)
Problem 48HP
In your refrigerator, the working substance evaporates from liquid to vapor at −20°C inside a pipe around the cold section. Outside (on the back or below) is a black grille, inside of which the working substance condenses from vapor to liquid at +45°C. For each location, find the pressure and the change in specific volume (v) if the substance is ammonia.
Questions & Answers
QUESTION:
Problem 48HP
In your refrigerator, the working substance evaporates from liquid to vapor at −20°C inside a pipe around the cold section. Outside (on the back or below) is a black grille, inside of which the working substance condenses from vapor to liquid at +45°C. For each location, find the pressure and the change in specific volume (v) if the substance is ammonia.
ANSWER:
Solution 48HP
Step 1 of 3
Here we have to calculate the pressure and change in specific volume at each location, by considering the working substance of refrigerator as ammonia.
By considering the values directly from the table we can get the pressure and the change in specific volume at each location.