Utilization of waste heat in trucks for increased fuel economy
Improvements in fuel economy for a broad spectrum of truck engines and waste heat utilization concepts are evaluated and compared. The engines considered are the diesel, spark ignition, gas turbine, and Stirling. The waste heat utilization concepts include preheating, regeneration, turbocharging, turbocompounding, and Rankine engine compounding. Predictions were based on fuel-air cycle analyses, computer simulation, and engine test data. The results reveal that diesel driving cycle performance can be increased by 20% through increased turbocharging, turbocompounding, and Rankine engine compounding. The Rankine engine compounding provides about three times as much improvement as turbocompounding but also costs about three times as much. Performance for either is approximately doubled if applied to an adiabatic diesel.
- Research Organization:
- Jet Propulsion Lab., Pasadena, CA (USA)
- OSTI ID:
- 6273338
- Report Number(s):
- N-78-27532
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320203 -- Energy Conservation
Consumption
& Utilization-- Transportation-- Land & Roadway
33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
DIESEL ENGINES
ENGINES
FUEL ECONOMY
FUEL-AIR RATIO
GAS TURBINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PERFORMANCE TESTING
RANKINE CYCLE ENGINES
SIMULATION
SPARK IGNITION ENGINES
STIRLING ENGINES
TESTING
TRUCKS
TURBINES
TURBOMACHINERY
VEHICLES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION