Accession Number:

AD1031540

Title:

Energy Efficient Waste Heat Recovery from an Engine Exhaust System

Descriptive Note:

Technical Report

Corporate Author:

Naval Postgraduate School Monterey United States

Personal Author(s):

• VanDenBerg,Aaron R.

Report Date:

2016-12-01

Pagination or Media Count:

187.0

Abstract:

The purpose of this thesis was to design and demonstrate the effectiveness of a new style of heat exchanger for waste heat recovery. The new design sought to optimize heat recovery from a gas turbine engine exhaust as well as assist with flow turning through a bend in the exhaust duct in order to minimize back-pressure increases. The analysis of the design was based around the use of the Allison 250 gas turbine engine. An analysis of the engine was performed to determine baseline operating parameters to be used in ANSYS CFD models.

Descriptors:

• computational fluid dynamics
• boundary layer
• fluid flow
• heat transfer
• flow visualization
• exhaust gases
• thermodynamics
• air flow
• back pressure
• gas turbines
• heat exchangers
• brayton cycles
• combustion
• ENERGY EFFICIENCY

Subject Categories:

• Fluid Mechanics
• Air Conditioning, Heating, Lighting and Ventilating
• Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE