Flow distribution control characteristics in marine gas turbine waste-heat recovery systems. Phase 1: Flow distribution characteristics and control in diffusers
Abstract
Flow distribution problems have become increasingly important in the design of modern fluid flow and heat transfer systems. Flow distribution characteristics and control of marine gas turbine exhaust flow is studied. Major technical problems associated with nonuniform flow distribution are reviewed and various flow distribution control methods are evaluated. A two dimensional, turbulent flow model is developed for investigating flow distribution characteristics and diffuser performance. Actual flow distribution data from marine gas turbine exhaust flows is used. A more uniformly distributed flow is obtained by using flow guide vanes combined with flow injection, and an improvement of approximately 20 to 36 percentage points in diffuser efficiency is expected depending on the diffuser geometry considered.
- Publication:
-
Annual Technical Report
- Pub Date:
- August 1981
- Bibcode:
- 1981utrc.reptR....K
- Keywords:
-
- Flow Distribution;
- Gas Flow;
- Gas Turbine Engines;
- Heat Transfer;
- Marine Environments;
- Waste Energy Utilization;
- Exhaust Diffusers;
- Exhaust Gases;
- Guide Vanes;
- Nonuniform Flow;
- Turbulence Models;
- Turbulent Flow;
- Two Dimensional Flow;
- Two Dimensional Models;
- Fluid Mechanics and Heat Transfer