TY - GEN
T1 - Thermodynamic modeling of Allam cycle
AU - Sifat, Najmus S.
AU - Haseli, Yousef
N1 - Funding Information:
The research fund provided by Central Michigan University is gratefully acknowledged.
Publisher Copyright:
Copyright © 2018 ASME.
PY - 2018
Y1 - 2018
N2 - Deterioration of environment caused by the release of harmful greenhouse gases (mainly CO 2 ) from the power plants has become an area of growing concern. At the present, various methods are being investigated for capturing and storing CO 2 . Current technologies require a huge amount of energy leading to reduction in overall efficiency. The introduction of Allam cycle, which uses high pressurized super critical CO 2 as working fluid has added a new dimension to solve this problem. This is an innovative oxy-fuel power cycle which ensures a near zero emission through inherent capture of all CO 2 . This paper concentrates on performance modeling of an Allam cycle. The effects of various input parameters are analyzed for achieving highest efficiency. Performance of each component in the cycle is investigated separately and combined therefore to get the overall performance of the cycle. The impact of using an ASU without intercooling and then supplying the high temperature outlet gases except oxygen to the recuperator is investigated. Although, a high power is consumed within ASU, the overall energy requirement decreases as extra energy becomes available in the recuperator to preheat the recycled CO 2 . An efficiency of 55% is predicted for the cycle.
AB - Deterioration of environment caused by the release of harmful greenhouse gases (mainly CO 2 ) from the power plants has become an area of growing concern. At the present, various methods are being investigated for capturing and storing CO 2 . Current technologies require a huge amount of energy leading to reduction in overall efficiency. The introduction of Allam cycle, which uses high pressurized super critical CO 2 as working fluid has added a new dimension to solve this problem. This is an innovative oxy-fuel power cycle which ensures a near zero emission through inherent capture of all CO 2 . This paper concentrates on performance modeling of an Allam cycle. The effects of various input parameters are analyzed for achieving highest efficiency. Performance of each component in the cycle is investigated separately and combined therefore to get the overall performance of the cycle. The impact of using an ASU without intercooling and then supplying the high temperature outlet gases except oxygen to the recuperator is investigated. Although, a high power is consumed within ASU, the overall energy requirement decreases as extra energy becomes available in the recuperator to preheat the recycled CO 2 . An efficiency of 55% is predicted for the cycle.
UR - http://www.scopus.com/inward/record.url?scp=85063799470&partnerID=8YFLogxK
U2 - 10.1115/IMECE2018-88079
DO - 10.1115/IMECE2018-88079
M3 - Conference contribution
AN - SCOPUS:85063799470
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
BT - Energy
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018
Y2 - 9 November 2018 through 15 November 2018
ER -