ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
CONDENSATION OF REFRIGERANT-OIL MIXTURES ON LOW-PROFILE FINNED TUBING
摘要
Condensation of oil-refrigerant mixtures on
the outside of horizontal, low finned, copper tubes
was investigated both theoretically and experimentally.
The test apparatus used a constant pressure
boiling and condensing system with oil sprayed into
the refrigerant vapor above the test surface.
Experimentally measured values of condensing heat
transfer coefficients were determined for various
oil concentrations and operating conditions. The
condensing heat transfer coefficients for the finned
surface were lower than predicted. The presence
of oil was found to have a minimal effect when
using the low finned tubes.