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Publication Name: REVIEW OF SUPERCRITICAL CO2 POWER CYCLE TECHNOLOGY AND CURRENT STATUS OF RESEARCH AND DEVELOPMENT
Original File Name Searched: 47-6-1.pdf
Page Number: 001

PDF Text:

Nucl Eng Technol 47 (2015) 647e661

Available online at www.sciencedirect.com ScienceDirect

journal homepage: http://www.journals.elsevier.com/nuclear- engineering-and-technology/

Review Article

REVIEW OF SUPERCRITICAL CO2 POWER CYCLE TECHNOLOGY AND CURRENT STATUS OF RESEARCH AND DEVELOPMENT

YOONHAN AHN a, SEONG JUN BAE a, MINSEOK KIM a, SEONG KUK CHO a, SEUNGJOON BAIK a, JEONG IK LEE a,*, and JAE EUN CHA b

a Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon, 305-701, South Korea

b Fast Reactor Technology Development Division, Korean Atomic Energy Research Institute, 305-353, DukJin-Dong 150, Yuseong-gu, Daejeon, South Korea

article info

Article history:

Received 16 January 2015 Received in revised form

19 May 2015

Accepted 6 June 2015

Available online 13 August 2015

Keywords:

Advanced power system

Integral test loop

Layout study

Research review

Supercritical carbon dioxide cycle

1. Introduction

Since the early 2000s, numerous countries have cooperated to develop Generation IV (Gen IV) nuclear reactors. Sodium- cooled Fast Reactor (SFR), Lead-cooled Fast Reactor (LFR), Gas-cooled Fast Reactor (GFR), Super-Critical Water-cooled Reactor (SCWR), Very High Temperature gas-cooled Reactor (VHTR), and Molten Salt Reactor (MSR) were selected as Gen IV reactor candidates. Characteristics of Gen IV reactors vary in

abstract

The supercritical CO2 (S-CO2) Brayton cycle has recently been gaining a lot of attention for application to next generation nuclear reactors. The advantages of the S-CO2 cycle are high efficiency in the mild turbine inlet temperature region and a small physical footprint with a simple layout, compact turbomachinery, and heat exchangers. Several heat sources including nuclear, fossil fuel, waste heat, and renewable heat sources such as solar ther- mal or fuel cells are potential application areas of the S-CO2 cycle. In this paper, the current development progress of the S-CO2 cycle is introduced. Moreover, a quick comparison of various S-CO2 layouts is presented in terms of cycle performance.

Copyright © 2015, Published by Elsevier Korea LLC on behalf of Korean Nuclear Society.

neutron energy spectrum and the fluid type used for coolant. The operating temperatures of Gen IV reactors are commonly higher, which is ~500e900 C, compared with conventional water-cooled reactors, which operates ~300 C.

The main reason why Gen IV reactors have high operating temperatures is to increase the nuclear power plant efficiency which is currently lower than fossil fuel power plants. Increasing the reactor outlet temperature typically leads to a higher turbine inlet temperature in the power conversion

* Corresponding author.

E-mail address: jeongiklee@kaist.ac.kr (J.I. Lee).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://

creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any me- dium, provided the original work is properly cited.

http://dx.doi.org/10.1016/j.net.2015.06.009

1738-5733/Copyright © 2015, Published by Elsevier Korea LLC on behalf of Korean Nuclear Society.

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