Vaporization of thin liquid films
MacKenzie, Donald Kenneth
Marto, Paul J.
MetadataShow full item record
Experimental results are presented for saturated nucleate pool boiling of distilled water and ethyl-alcohol from 1-7/8" diameter Nickel disks with pool depths from 1.0 inch to a thin film of 0.015 inch. Experimental runs were conducted on a mirrorlike surface utilizing distilled water and ethyl-alcohol; on a grooved surface with distilled water as the working fluid; and on a surface covered with 4 layers of Nickel 50 x 40 mesh with distilled water as the working fluid. Results show that liquid level has little effect on the heat transfer coefficient above a level of 0.2 inch on all three test surfaces; however, below 0.2 inch a rapid increase in the heat transfer coefficient occurs with the lowering of the liquid level. Two types of thin film dryout were noted on the mirrorlike surface: dryout under a dome and dryout in absence of a dome. A grooved surface appears to provide a means of obtaining a stable high heat transfer coefficient at liquid films as thin as 0.015 inch.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Naval Postgraduate School Physics (2015);Capacitor Discharge - A Capacitor TutorialThis demonstration is done in a course on transduction. The transducer is a sensor that measures a surface wave on a liquid by converting the wave height to voltage. The sensor is ...
Isik, Sefa (Monterey, California: Naval Postgraduate School, 1999-06);A set of experiments has been performed to study the extensional behavior of a thin layer of liquid (silicone oil), trapped between two smooth plexiglass disks that are pulled apart in a controlled manner. Different values ...
Naval Postgraduate School Physics (2013);Gravity Waves - Phase Velocity of Nonlinear Traveling Gravity Waves Hello. I'm Prof. Denardo. I'm here in the Lecture Demonstrations Laboratory in the Physics Department at the Naval Postgraduate School. I would like to ...