Question

A refrigerant-134a refrigerator is to maintain the refrigerated ice-cream space at -10°C. Would you recommend an evaporator pressure of 0.12 or 0.14 MPa for this system? Why?

Answer 1

1.2Mpa

Step-by-step explanation:

As the saturation temperature of 134a refrigerator

At 0. 12 Mpa = - 22.31°C

And

At 0.14 Mpa = - 18.76°C

So 0.12 Mpa is the recommended pressure to maintain ice cream at -10°C