Computer simulation of the turbo-charged turbocompounded diesel engine system: a description of the thermodynamic and heat transfer models

Technical Report · Thu Aug 01 00:00:00 EDT 1985

OSTI ID:6310966

Assanis, D N; Ekchian, J E; Frank, R M; Heywood, J B

A computer simulation of the turbocharged turbocompounded direct-injection diesel engine system has been developed in order to study the performance characteristics of the total system as major design paramters and materials are varied. Quasi-steady flow models of the compressor, turbines, manifolds, intercooler, and ducting are coupled with a multi-cylinder reciprocator diesel model, where each cylinder undergoes the same thermodynamic cycle. The master cylinder model describes the reciprocator intake, compression, combustion and exhaust processes in sufficient detail to define the mass and energy transfers in each sub-system of the total engine system. Appropriate thermal loading models relate the heat flow through critical system components to material properties and design details. From this information, the simulation predicts the performance gains, and assesses the system design trade-offs which would result from the introduction of selected heat transfer reduction materials in key system components, over a range of operating conditions. 53 refs., 7 figs., 3 tabs.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Sloan Automotive Lab.
• DOE Contract Number: AI01-80CS50194
• OSTI ID: 6310966
• Report Number(s): DOE/NASA-0340-1; NASA-CR-174971; ON: DE86005012
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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CERAMICS
HEAT LOSSES
HEAT TRANSFER
TURBOCHARGERS
COMPRESSORS
ENERGY LOSSES
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INTERNAL COMBUSTION ENGINES
LOSSES
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