Nucleate pool boiling performance of smooth and finned tube bundles in R-113 and R-114/oil mixtures
Anderson, Carl Lee
Marto, Paul J.
Michael, Alexis G.
MetadataShow full item record
Heat-transfer measurements were made for boiling of refrigerants and refrigerant/oil mixtures from smooth and finned tube bundles. The bundles contained 15 heated tubes arranged in an equilateral triangular pitch of 19.1 mm. The outside diameter of the smooth tubes (15.8 mm) was equal to the diameter to the tip of the fins of the finned tubes. The smooth tube bundle was tested in pure R-113 with varying surface "histories" as well as with pure R-114 and R-ll4/oil mixtures. The finned tube bundle was tested in pure R-114 and R-114/oil mixtures. Oil concentrations used were 1, 2, 3, 6, and 10% by mass.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
H. Chen; Agrawal, B.N. (2002);The low-frequency flexible modes of solar arrays on spacecraft are excited by the minimum-time bang-bang control during a slew maneuver. These flexible modes limit the control bandwidth and degrade the pointing error at ...
Tysver, Joseph Bryce (Monterey, California. Naval Postgraduate School, 1986-01); NPS55-86-003PRThe proposed BASIC program for smoothing NUWES data uses the Least- Squares Method to fit a polynomial to a 7-point data segment. It determines the best fitting polynomial of order 1, 2, or 3 and establishes an estimate ...
Bertsch, George M. (Monterey, California: Naval Postgraduate School, 1993-03);This thesis examines the pool boiling heat transfer characteristics of HCFC-124 and HCFC-124/oil mixtures with up to 10% (by weight) miscible alkylbenzene oil. One smooth and 4 enhanced tubes were tested: a 19 and 26 low ...