0
research-article

The Effect of Real Gas Approximations on S-CO2 Compressor Design

[+] Author and Article Information
Jekyoung Lee

Korea Advanced Institute of Science and Technology, KAIST 291, Daehak-ro, Yuseong-gu, Daejeon, Rep. of Korea
leejaeky85@kaist.ac.kr

Seong Kuk Cho

Korea Advanced Institute of Science and Technology, KAIST 291, Daehak-ro, Yuseong-gu, Daejeon, Rep. of Korea
skcho89@kaist.ac.kr

Jeong Ik Lee

Korea Advanced Institute of Science and Technology, KAIST 291, Daehak-ro, Yuseong-gu, Daejeon, Rep. of Korea
jeongiklee@kaist.ac.kr

1Corresponding author.

ASME doi:10.1115/1.4038879 History: Received November 07, 2017; Revised November 22, 2017

Abstract

From the efforts of many researchers and engineers related to the S-CO2 Brayton cycle technology development, the S-CO2 Brayton cycle is now considered as one of the key power technologies for the future. Since the S-CO2 Brayton cycle has advantages in economics due to high efficiency and compactness of the system, various industries have been trying to develop baseline technology on the design and analysis of the S-CO2 Brayton cycle components. According to the previous researches on the S-CO2 Brayton cycle component technology, the treatment of a thermodynamic property near the critical point of CO2 is one of the main concerns since conventional design and analysis methodologies cannot be used for the near critical point region. Among many thermodynamic properties, the stagnation to static condition conversion process is important since the flow in a compressor is at high flow velocity. In this paper, the impact of various stagnation to static conversion methods on the S-CO2 compressor design near the critical point will be evaluated. From the evaluation, the limitation of a certain stagnation to static conversion method will be discussed to provide a guideline for the future S-CO2 compressor designers.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In