Abstract
This paper proposes working fluids selection for Brayton cycle of closed gas turbine driven by heat source with small temperature difference. The heat source temperatures are 80℃ to 300℃ and 40℃ for higher and lower, respectively. Working fluids are natural substances and these are chosen from the reason that these critical temperatures are lower than 40℃. The selected working fluids are 17 fluids. Pressure determination has two optimization methods, the one employs the maximum thermal efficiency as objective function, and the other employs the maximum net work. The effects of the heat source temperature and the adiabatic efficiencies of compression and expansion processes are discussed. As a result, the substances, which have higher critical temperatures, are adequate to Brayton cycle driven with low temperature heat source. Nitrous oxide and Carbon dioxide are selected from the viewpoint of cycle performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Proceedings of the National Symposium on Power and Energy Systems
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
