Refrigerant R134a is flowing through a -std type L copper tube in a refrigeration system. In this
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Refrigerant R134a is flowing through a ¾-std type L copper tube in a refrigeration system. In this system, a desuperheater is used to heat water as shown in Figure P4.3. The R134a enters the desuperheater at 200 psia, 225°F. The desuperheater removes enough energy, QDSH , such that the R134a enters the condenser as a saturated vapor with no appreciable loss in pressure. In the condenser, energy is transferred from the refrigerant at a rate of 60,000 Btu/h. This causes the R134a to leave the condenser as a saturated liquid with a negligble drop in pressure.
Determine the velocity (ft/s) of the R134a as it
(a) enters the condenser and
(b) leaves the condenser.
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Related Book For
Thermal Energy Systems Design And Analysis
ISBN: 9781138735897
2nd Edition
Authors: Steven G. Penoncello
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