Accession Number : ADA134063

Title :   Marine Surface Condenser Design Using Vertical Tubes Which Are Enhanced.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Barnes,Clifford Gerald , Jr

PDF Url : ADA134063

Report Date : Jun 1981

Pagination or Media Count : 128

Abstract : A methodology is developed for calculating the heat transfer coefficient on the surface of a vertical fluted condenser tube based upon condensate film thickness. A marine condenser sizing procedure is demonstrated using this methodology. A comparison is made between a fluted tube condenser and a comparable smooth tube horizontal condenser. Alternative materials are considered and applicability is assessed for submarine use. The results of the analysis indicate that a smaller volume, lighter weight condenser can be designed for marine use. The marine engineer can specify tube length or condensate drainage rate and size the condenser accordingly. Approximately 20% can be saved in volume, and, by using Titanium in place of Copper-Nickel, approximately 30% can be saved in tube bundle weight, compared to a similar horizontal condenser. (Author)

Descriptors :   *Condenser tubes, *Heat transfer coefficients, *Marine propulsion, *Steam power plants, *Submarines, Steam condensers, Surface propulsion, Marine engineering, Methodology, Surfaces, Condensation, Films, Thickness, Horizontal orientation, Vertical orientation, Volume, Lightweight, Titanium, Heat transfer, Predictions, Mathematical analysis, Stress analysis, Sizes(Dimensions)

Subject Categories : Electric Power Production and Distribution
      Air Condition, Heating, Lighting & Ventilating
      Submarine Engineering
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE