Answer:
a) [tex]\dot Q_{L} = 132.046\,\frac{kJ}{min}[/tex], b) [tex]COP_{R} = 1.467[/tex]
Explanation:
a) The heat rejected by the bananas is:
[tex]\dot Q_{L} = \dot m \cdot c\cdot (T_{f}-T_{o})[/tex]
[tex]\dot Q_{L} = \left(215\,\frac{kg}{h}\right)\cdot \left(\frac{1\,h}{60\,min} \right)\cdot \left(3.35\,\frac{kJ}{kg\cdot ^{\textdegree}C} \right)\cdot (24^{\textdegree}C-13\,^{\textdegree}C)[/tex]
[tex]\dot Q_{L} = 132.046\,\frac{kJ}{min}[/tex]
b) The coefficient of performance for the refrigeration system is:
[tex]COP_{R} = \frac{\dot Q_{L}}{\dot W}[/tex]
[tex]COP_{R} = \frac{\left(132.046\,\frac{kJ}{min}\right)\cdot \left(\frac{1\,min}{60\,s} \right)}{1.5\,kW}[/tex]
[tex]COP_{R} = 1.467[/tex]
