Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Numerical evaluation on the performance of advanced CO2 cycles in the cooling mode operation

Authors
Cho, HonghyunLee, Moo-YeonKim, Yongchan
Issue Date
Jun-2009
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
Carbon dioxide; Transcritical cycle; Expander; Two-stage compression cycle; Intercooling; Vapor injection; Performance improvement
Citation
APPLIED THERMAL ENGINEERING, v.29, no.8-9, pp.1485 - 1492
Indexed
SCIE
SCOPUS
Journal Title
APPLIED THERMAL ENGINEERING
Volume
29
Number
8-9
Start Page
1485
End Page
1492
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119970
DOI
10.1016/j.applthermaleng.2008.06.030
ISSN
1359-4311
Abstract
A cycle simulation model was developed to predict the performances of the basic and advanced CO2 cycles. The simulation model for the basic CO2 cycle was validated by comparing the predicted data with the experimental data at the standard cooling condition. Cycle simulations of the advanced CO2 Cycles were carried out by varying the design parameters and operating conditions. The advanced CO2 cycles considered in this study are as follows: a single-stage CO2 cycle with an expander, a two-stage CO2 cycle with an intercooler, and a two-stage CO2 cycle with a vapor injection. The expander CO2 cycle yielded a 28.3% improvement of the cooling COP over that of the basic CO2 cycle at the expander efficiency of 30%. The two-stage CO2 cycle with the intercooler yielded a 13.1% improvement of the cooling COP at the intercooling pressure of 6 MPa. The two-stage CO2 cycle with vapor injection yielded an 18.3% improvement of the cooling COP at the low pressure side mass fraction of 70%. (C) 2008 Elsevier Ltd. All rights reserved.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Mechanical Engineering > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher KIM, Yong Chan photo

KIM, Yong Chan
College of Engineering (Department of Mechanical Engineering)
Read more

Altmetrics

Total Views & Downloads

BROWSE