Feasibility test on compounding the internal combustion engine for automotive vehicles, Task II. Final report

Technical Report · Thu Jan 01 04:00:00 EST 1976

DOI:https://doi.org/10.2172/7123074· OSTI ID:7123074

The organic Rankine bottoming cycle can be considered for various automobile and truck applications. The most attractive use, however, is in large, heavy-duty diesel trucks for long distance hauling. Here, the engine load and speed requirements are nearly constant over a large portion of the operating hours, and high mileages are accumulated. Thus, the potential fuel savings are sufficient to justify the added cost of a bottoming cycle system. A conceptual design study of compounding the diesel truck engine with an ORCS was made and the results of the study are presented. Based on the results of the conceptual design study which showed a 15 percent fuel economy improvement potential over the duty cycle, an early feasibility demonstration test of the system was initiated. The demonstration system uses a Mack ENDT 676 diesel engine with existing but nonoptimum ORCS hardware made available from an earlier automotive Rankine-cycle program. The results of these feasibility demonstration tests, both steady-state and transient, over the operating range of the diesel engine, are presented.

• Research Organization: Thermo Electron Corp., Waltham, MA (USA)
• OSTI ID: 7123074
• Report Number(s): COO-2690-1
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
330202 -- External Combustion Engines-- Rankine Cycle
330400* -- Advanced Propulsion Systems-- Hybrid Systems
BOILERS
BOTTOMING CYCLES
COMBINED CYCLES
DESIGN
DIESEL ENGINES
ENGINES
FEASIBILITY STUDIES
GEARS
INTERNAL COMBUSTION ENGINES
PERFORMANCE TESTING
RANKINE CYCLE ENGINES
STEADY-STATE CONDITIONS
TEST FACILITIES
TESTING
THERMODYNAMIC CYCLES
TRANSIENTS
TRUCKS
VAPOR GENERATORS
VEHICLES