 ‫א‬‫א‬
 205
 
 ‫א‬‫א‬‫א‬‫א‬‫א‬
 EF‫א‬‫א‬
 ‫א‬‫א‬‫א‬
 1 kcal=3.98 BTU

TR=3000 kcal/hour
 1 kcal=4.1868 kJ

TR=12500 kJ/hour =3.5 kJ/s =3.5 kW
 ‫א‬‫א‬
‫א‬‫א‬ Refrigeration Capacities ‫א‬‫א‬
 
‫א‬‫א‬‫א‬K‫א‬RC3, RC2, RC1 ‫א‬‫א‬‫א‬‫א‬
 W‫א‬
 
W‫א‬‫א‬ J1
•
3.5 × RC1
h1 − h4
•
3.5 × RC2
h1 − h4
•
3.5 × RC3
h1 − h4
 m1 =
 
  m2 =
  m3 =
 KEkWFETRF‫א‬‫א‬‫א‬‫א‬3.5
 
W‫א‬‫א‬‫א‬ J2
•
•
•
  PC = (m1 + m 2 + m 3 )(h2 − h1 )
 
  COP =
h − h4
Refrigerating effect
= 1
Compressor work
h 2 - h1
 
 W‫א‬‫א‬ J3

-3-