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Record Details

Record 49 of 3602
Screw expander for light duty diesel engines
Abstract: Preliminary selection and sizing of a positive displacement screw compressor-expander subsystem for a light-duty adiabatic diesel engine; development of a mathematical model to describe overall efficiencies for the screw compressor and expander; simulation of operation to establish overall efficiency for a range of design parameters and at given engine operating points; simulation to establish potential net power output at light-duty diesel operating points; analytical determination of mass moments of inertia for the rotors and inertia of the compressor-expander subsystem; and preparation of engineering layout drawings of the compressor and expander are discussed. As a result of this work, it was concluded that the screw compressor and expander designed for light-duty diesel engine applications are viable alternatives to turbo-compound systems, with acceptable efficiencies for both units, and only a moderate effect on the transient response.
Publication Date: Dec 01, 1983
Document ID:
19850004934
(Acquired Nov 13, 1995)
Accession Number: 85N13242
Subject Category: MECHANICAL ENGINEERING
Coverage: Final Report
Document Type: Technical Report
Publication Information: Cummins Engine Co., Inc. Advan. Automotive Diesel Assessment Program; 46 p
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Institute of Gas Technology; Chicago, IL, United States
Description: 46p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: COMPRESSORS; DIESEL ENGINES; ENGINE PARTS; PROPELLERS; DESIGN ANALYSIS; MATHEMATICAL MODELS; SIMULATION; SIZE (DIMENSIONS); SPECIFICATIONS
Imprint And Other Notes: In Cummins Engine Co., Inc. Advan. Automotive Diesel Assessment Program 46 p (SEE N85-13235 04-37)
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