Steam bottoming cycle for an adiabatic diesel engine
A study of steam bottoming cycles using adiabatic diesel engine exhaust heat projected substantial performance and economic benefits for long haul trucks. A parametric analysis of steam cycle and system component variables, system cost, size and performance was conducted. An 811 K/6.90 MPa state-of-the-art reciprocating expander steam system with a monotube boiler and radiator core condenser was selected for preliminary design. When applied to a NASA specified turbo-charged adiabatic diesel the bottoming system increased the diesel output by almost 18%. In a comparison of the costs of the diesel with bottoming system (TC/B) and a NASA specified turbocompound adiabatic diesel with after-cooling with the same total output, the annual fuel savings less the added maintenance cost was determined to cover the increased initial cost of the TC/B system in a payback period of 2.3 years. Also during this program steam bottoming system freeze protection strategies were developed, technological advances required for improved system reliability were considered and the cost and performance of advanced systems were evaluated.
- Research Organization:
- Foster-Miller Associates, Inc., Waltham, MA (USA)
- DOE Contract Number:
- AI01-80CS50194
- OSTI ID:
- 6497076
- Report Number(s):
- DOE/NASA-0030-1; NASA-CR-168255; ON: DE85001318
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330102* -- Internal Combustion Engines-- Diesel
ADIABATIC PROCESSES
BOILERS
BOTTOMING CYCLES
COMPRESSORS
CONDENSERS
COST
DESIGN
DIESEL ENGINES
ENERGY
ENGINES
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PARAMETRIC ANALYSIS
RANKINE CYCLE
RELIABILITY
SUPERCHARGERS
THERMODYNAMIC CYCLES
TRUCKS
VEHICLES
WASTE HEAT
WASTES