On the effect of pseudo-condensation on the design and performance of supercritical CO2 gas chillers

This paper presents the neutronics characteristics of a prototype gas-cooled (supercritical CO2-cooled) fast reactor (GCFR) with minor actinide (MA) loading in the fuel. The GCFR core is designed with a thermal output of 600 MWt as a part of a direct supercritical CO2 (S-CO2) gas turbine cycle. Transmutation of MAs in the GCFR has been investigated for attaining low burnup reactivity swing and reducing long-life radioactive waste. Minor actinides are loaded uniformly in the fuel regions of the core. The burnup reactivity swing is minimized to 0.11% ∆k/kk’ over the cycle length of 10 years when the MA content is 6.0 wt%. The low burnup reactivity swing enables minimization of control rod operation during burnup. The MA transmutation rate is 42.2 kg/yr, which is equivalent to the production rates in 7 LWRs of the same electrical output.

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Optimal Cycle Scheme of Direct Cycle Supercritical CO2 Gas Turbine for Nuclear Power Generation Systems

Challenges of Power Engineering and Environment ◽

10.1007/978-3-540-76694-0_15 ◽

2007 ◽

pp. 86-92

Author(s):

Yasushi Muto ◽

Yasuyoshi Kato

Keyword(s):

Power Generation ◽

Gas Turbine ◽

Supercritical Co2 ◽

Nuclear Power ◽

Nuclear Power Generation ◽

Co2 Gas ◽

Power Generation Systems ◽

Direct Cycle

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Application of Supercritical Carbon Dioxide for Solar Water Heater

Advanced Applications of Supercritical Fluids in Energy Systems - Advances in Chemical and Materials Engineering ◽

10.4018/978-1-5225-2047-4.ch007 ◽

2017 ◽

pp. 215-234

Author(s):

Yuhiro Iwamoto ◽

Hiroshi Yamaguchi

Keyword(s):

Heat Exchanger ◽

Solar Collector ◽

Supercritical Co2 ◽

Large Change ◽

Solar Water Heater ◽

Water Heater ◽

Solar Water ◽

Small Change ◽

And Performance ◽

Main Components

For supercritical CO2, a small change in temperature or pressure can result in large change in density, especially in the state close to the critical point. The large change in density can easily induce the natural convective flow. In this chapter, a solar water heater using supercritical CO2 which is originally designed and constructed will be introduced. The solar water heater is a closed loop system with main components of an evacuated solar collector and a heat exchanger. The working fluid of CO2 is naturally driven by the large change in density with absorbing and transporting heat in the solar collector. And the heat energy (hot water) is produced by exchanging the transferred heat with water in the heat exchanger. This chapter will describe the typical system operation and performance at different season and climates.

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Design and performance analysis of a supercritical CO2 (sCO2)-water separator for power generation systems using hot sCO2 from geothermal reservoirs

Geothermics ◽

10.1016/j.geothermics.2019.05.001 ◽

2019 ◽

Vol 81 ◽

pp. 123-132 ◽

Cited By ~ 4

Author(s):

Zongliang Qiao ◽

Youfei Tang ◽

Lei Zhang ◽

Chunjian Pan ◽

Carlos E. Romero ◽

...

Keyword(s):

Power Generation ◽

Performance Analysis ◽

Supercritical Co2 ◽

Geothermal Reservoirs ◽

Water Separator ◽

And Performance ◽

Power Generation Systems

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Demonstration Plan of Nuclear Fusion Power Generation Principle by Supercritical CO2 Gas Turbine in Oroshhi-2

Fusion Science & Technology ◽

10.1080/15361055.2019.1658046 ◽

2019 ◽

Vol 75 (8) ◽

pp. 862-872

Author(s):

Shintaro Ishiyama ◽

Teruya Tanaka ◽

Akio Sagara ◽

Hirotaka Chikaraishi

Keyword(s):

Power Generation ◽

Gas Turbine ◽

Supercritical Co2 ◽

Nuclear Fusion ◽

Co2 Gas ◽

Fusion Power

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Selected Issues of the Structures and Parameters of Supercritical CO2 Gas Turbine Cycles

Mechanics and Mechanical Engineering ◽

10.2478/mme-2018-0045 ◽

2020 ◽

Vol 22 (2) ◽

pp. 565-584

Author(s):

Jarosław Milewski ◽

Kamil Futyma ◽

Arkadiusz Szczęśniak ◽

Marcin Wołowicz ◽

Gabriel Ziembicki

Keyword(s):

Carbon Dioxide ◽

Gas Turbine ◽

Gas Turbines ◽

Supercritical Co2 ◽

Heat Supply ◽

Operating Temperature ◽

Working Fluid ◽

Co2 Gas ◽

Variant Analysis ◽

Recompression Cycle

AbstractThe paper presents a variant analysis of the structures of closed gas turbines using supercritical carbon dioxide (super-CO2) as a working fluid. Several configurations covered in the available literature were collected, commented on and compared. The parameters of the cycles, such as operating temperature and heat supply are noted and commented on. There are three main configurations considered in the available literature: the precompression cycle, partial cooling cycle, and recompression cycle.

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