=+14-35.

A refrigerant condenser like the surface of Fig. 14-12 has 0.5 in. tubes and 8 fins per in, and operates under the following conditions:

. Standard atmospheric pressure

. Refrigerant type R-134a

. Four rows of tubes

. Sixteen tubes per row

. Width 32 in.

. Fin thickness 0.006 in.

· Entering air temperature 95 F

· Coil face velocity 650 ft/min.

· Refrigerant saturation pressure 200 psia