Comprehensive comparison of various working media and corresponding power cycle layouts for the helium-cooled DEMO reactor

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00548211" target="_blank" >RIV/61389021:_____/21:00548211 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21220/21:00350105

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0920379621000636?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0920379621000636?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fusengdes.2021.112287" target="_blank" >10.1016/j.fusengdes.2021.112287</a>

Result language

angličtina

Original language name

Comprehensive comparison of various working media and corresponding power cycle layouts for the helium-cooled DEMO reactor

Original language description

The main goal of this study is to propose a comprehensive view of the benefits of using various working media and thermal cycle layouts for efficient conversion of thermal energy from the helium-cooled DEMO reactor for electricity production. A four-source boundary condition proposed by Bubelis (2018) [1] is used in the power cycle optimization process. Selected power cycle layouts are optimized through a specialized computational optimization code to achieve maximum net power output with variable blanket helium outlet temperature in the range from 380 up to 520 °C. The selected working media are water-steam, supercritical CO2, and helium. The Rankine cycle layout is based on the layout proposed by Rovira (2019) [7] and optimized in the full range of blanket outlet temperature. Investigated S-CO2 cycles are simple Brayton cycle, re-compression cycle, and pre-compression cycle. In the case of the indirect helium cycle, the only reasonable layouts are the simple Brayton cycle and the pre-compression cycle. Study results compare suitability of using the water-steam, S-CO2, and helium cycles for different outlet temperatures of the source as well as a view of their complexity in terms of size and number of components. Presented results show, that the Rankine cycle is the most effective solution from thermodynamics point of view, but S-CO2 cycles can compete with it in size, complexity, cost, and operational flexibility.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fusion Engineering and Design

ISSN

0920-3796

e-ISSN

1873-7196

Volume of the periodical

166

Issue of the periodical within the volume

May

Country of publishing house

CH - SWITZERLAND

Number of pages

7

Pages from-to

112287

UT code for WoS article

000640897000006

EID of the result in the Scopus database

2-s2.0-85100670908