Advanced Cooling Methods for Marine Gas Turbines.

Abstract

The development of sophisticated gas turbine hot section cooling methods appears to enhance the usefulness of the gas turbine as a marine propulsion plant. The state-of-the-art in cooling systems is reviewed and a qualitative assessment of selected methods is made. A computer model was employed to quantitatively compare the impact of film, transpiration and water cooling on gas turbine performance. The performance gains as predicted by this method for film and transpiration air cooling methods are minor compared to standard impingement-convection methods in simple cycle applications. Transpiration and water cooling techniques in combined cycles permit the attainment of efficiencies exceeding fifty percent. However, the cooling water flow rates predicted in this study indicate a probable over-simplification of coolant side heat transfer modelling. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1978
Accession Number
ADA072739

Entities

People

  • Carl Neilson Strawbridge

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Convection
  • Cycles
  • Energy Transfer
  • Engineering
  • Engineers
  • Fluid Flow
  • Gas Turbines
  • Heat Energy
  • Heat Transfer
  • Materials
  • Mechanical Engineering
  • Naval Architecture
  • Propulsion Systems
  • Thermodynamics
  • Turbine Blades
  • Turbines

Readers

  • Aerodynamics.
  • Systems Analysis and Design
  • Thermal Physics or Thermal Science.