Off-design operation of super critical CO2 cycle integrated with reciprocating engine

This paper presents the results of simulations of a supercritical CO2 system integrated with a 180-kW nominal power piston engine. The supercritical CO2 system is based on a micro gas turbine and operates in a Brayton system (without a condenser). The results of the calculations were referred to the...

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Bibliographic Details
Published inASHRAE Topical Conference Proceedings pp. 132 - 139
Main Authors Milewski, Jarosław, Szczęśniak, Arkadiusz, Dybiński, Olaf, Lis, Piotr, Dembowska, Małgorzata, Kryłłowicz1, Władysław, Szabłowski, Łukasz, Martsinchyk, Aliaksandr
Format Conference Proceeding
LanguageEnglish
Published Atlanta American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc 01.01.2023
Subjects
Alternative energy sources
Carbon dioxide
Design optimization
Efficiency
Energy consumption
Energy storage
Exhaust gases
Fuel cells
Gas turbines
Gases
Heat exchangers
Heat recovery systems
Inventory control
Piston engines
Power plants
Renewable resources
Solar energy
Temperature
Turbines
Turbomachinery
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Summary:This paper presents the results of simulations of a supercritical CO2 system integrated with a 180-kW nominal power piston engine. The supercritical CO2 system is based on a micro gas turbine and operates in a Brayton system (without a condenser). The results of the calculations were referred to the nominal point of the system and are given as maps of parameter changes normalized to the nominal point. The supercritical CO2 system itself is not controlled (only the speed of the turbomachinery is kept constant), while the power of this system depends on the current state of the reciprocating engine and directly influences the amount and temperature of the exhaust gases fed to the heater.