E112 Preliminary test result of a closed cycle gas turbine with supercritical CO_2 as working fluid

Utamura, Motoaki; Aritomi, Masanori; Yamamoto, Takashi; Hasuike, Hiroshi

doi:10.1299/jsmepes.2010.15.197

Cited by 17 publications

(24 citation statements)

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“…The small scale test loop of SeCO 2 cycle was initially planned by Tokyo Institute of Technology and the Institute of Applied Energy in Japan [7]. The rated heat and pressure ratio of the test loop were 160 kW and 1.4, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The final design is simple recuperated cycle with two recuperators connected in series. In the early design status, the recompressing layout with an adoption of reciprocating type recompressing compressor was considered but it was discarded from the final design [7,17]. The test scale was determined with the consideration of turbomachinery rotating speed feasibility from a manufacturing perspective.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design consideration of supercritical CO2 power cycle integral experiment loop

Ahn

Lee

Kim

et al. 2015

Energy

103

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design consideration of supercritical CO2 power cycle integral experiment loop

Ahn

Lee

Kim

et al. 2015

Energy

103

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“…Dyreby [18] overcame this issue by adjusting the non-dimensionless coefficients of turbomachinery to experimental data performed at SNL. Finally, the low performance obtained with scale prototypes is a common problem in all laboratories, due to limitations in maintaining the similarity parameters [19]. This means that performance values will be better when real-scale devices will be tested.…”

Section: Introductionmentioning

confidence: 99%

“…In the Czech Republic the stability of volumetric compressors has been investigated at Bechovice Research Institute [26], planning a future laboratory for turbomachinery analyses at Rez Nuclear Research Institute [27]. Tokyo Institute of Technology is working in an experimental compressor loop [28] and a recompression plant for power production from waste heat sources of low and intermediate temperatures [19]. Korea Atomic Energy Research Institute (KAERI) is constructing a facility for testing conversion systems at different stages: compressors, simple layout (non-recuperated) and recuperated layout (without recompression) [29].…”

Section: Introductionmentioning

confidence: 99%

Supercritical CO2 Brayton power cycles for DEMO (demonstration power plant) fusion reactor based on dual coolant lithium lead blanket

Linares

Cantizano

Moratilla

et al. 2016

Energy

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Fusion energy is one of the most promising solutions to the world's energy supply. This paper presents an exploratory analysis of the suitability of supercritical CO 2 Brayton power cycles as alternative energy conversion systems for a future fusion reactor based on a dual coolant lithium-lead (DCLL) blanket, as prescribed by EUROfusion. The main issue dealt is the optimization of the integration of the different thermal sources with the power cycle (up to four at different power and temperature levels) in order to achieve the highest electricity production. The analysis includes the assessment of the pumping consumption both in the source loops as in the sink one. Other considerations, as control issues and integration of thermal energy storage systems to face the pulsed operation, have been also taken intoaccount. An exergy analysis has been performed in order to understand the behavior of each layout.Up to ten scenarios have been analyzed, taking into account the heat power released from some thermal sources directly to the sink and assessing different locations for thermal sources heat exchangers.Neglecting the worst four scenarios, it is observed less than 2% of variation among the other six ones.One of the best six scenarios clearly stands out over the others due to the location of the thermal sources in a unique island, being this scenario compatible with the control criteria. In this proposal 34.6% of electric efficiency (before the self-consumptions of the reactor but including pumping consumptions and generator efficiency) is achieved.KEYWORDS: balance of plant, fusion power, supercritical CO 2 Brayton cycle, DCLL, DEMO Highlights:> Supercritical CO 2 Brayton cycles have been proposed for BoP of DCLL fusion reactor.> Integration of different available thermal sources has been analyzed considering ten scenarios.> Neglecting the four worst scenarios the electricity production varies less than 2%. > Control and energy storage integration issues have been considered in the analysis. > Discarding the vacuum vessel and joining the other sources in an island is proposed.-3 -

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“…There are many supporting studies about the SCO 2 Brayton cycle for nuclear applications [7][8][9]. Several research institutes around the world have already achieved electricity generation with experimental SCO 2 power conversion systems and they are trying to improve the system performances [10][11][12][13]. It is interesting to note that both fossil and renewable industries are actively developing the SCO 2 Brayton cycle in pursuit of a high-performance power conversion system.…”

Section: Introductionmentioning

confidence: 99%

A Conceptual Study of a Supercritical CO2-Cooled Micro Modular Reactor

Hartanto

Moon

et al. 2015

Energies

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A neutronics conceptual study of a supercritical CO 2 -cooled micro modular reactor (MMR) has been performed in this work. The suggested MMR is an extremely compact and truck-transportable nuclear reactor. The thermal power of the MMR is 36.2 MWth and it is designed to have a 20-year lifetime without refueling. A salient feature of the MMR is that all the components including the generator are integrated in a small reactor vessel. For a minimal volume and long lifetime of the MMR core, a fast neutron spectrum is utilized in this work. To enhance neutron economy and maximize the fuel volume fraction in the core, a high-density uranium mono-nitride U 15 N fuel is used in the fast-spectrum MMR. Unlike the conventional supercritical CO 2 -cooled fast reactors, a replaceable fixed absorber (RFA) is introduced in a unique way to minimize the excess reactivity and the power peaking factor of the core. For a compact core design, the drum-type control absorber is adopted as the primary reactivity control mechanism. In this study, the neutronics analyses and depletions have been performed by using the continuous energy Monte Carlo Serpent code with the evaluated nuclear data file ENDF/B-VII.1 Library. The MMR core is characterized in view of several important safety parameters such as control system worth, fuel temperature coefficient (FTC) and coolant void reactivity (CVR), etc. In addition, a preliminary thermal-hydraulic analysis has also been performed for the hottest channel of the Korea Advanced Institute of Science and Technology (KAIST) MMR.

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E112 Preliminary test result of a closed cycle gas turbine with supercritical CO_2 as working fluid

Cited by 17 publications

References 0 publications

Design consideration of supercritical CO2 power cycle integral experiment loop

Design consideration of supercritical CO2 power cycle integral experiment loop

Supercritical CO2 Brayton power cycles for DEMO (demonstration power plant) fusion reactor based on dual coolant lithium lead blanket

A Conceptual Study of a Supercritical CO2-Cooled Micro Modular Reactor

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