Year-end Sale % OFF 
Abstract
The variation characteristics of C5F10O decomposition components at 300 K – 3500 K are studied with a chemical kinetic model considering neutral reactions. Three chemical kinetic models of SF6 breakdown are built to verify the model adopted (model C) and the results show that ion/electron participated reactions slightly change the molar fractions, which are lower than 10-14 with little influence on the insulating performance of SF6. Therefore, model C is reasonable to study the varying characteristics of C5F10O decomposition components and thus the molar fractions of C5F10O decomposition products under different temperature decreasing curves and pressures are calculated. The results show that the molar fraction of C5F10O grows to approximately one as temperature declining to 1,500 K and the temperature decreasing rates have similar affects on the relaxation time of the reactions generating C5F10O. And high pressure promotes species recombining to C5F10O by increasing the molar fractions of C5F10O decomposition components. The results can be used to evaluate C5F10O insulating performance.
Highlights
Extensive efforts on investigating alternative gases for SF6, a greenhouse gas used as insulating and arcquenching medium in gas-insulated power equipment,1,2 have been carried out to reduce the usage of SF6
We built three chemical kinetic models of SF6 breakdown in order to verify above model
The variation characteristics of C5F10O decomposition components at 300 K-3500 K are studied with a chemical kinetic model considering neutral reactions
Summary
Extensive efforts on investigating alternative gases for SF6, a greenhouse gas used as insulating and arcquenching medium in gas-insulated power equipment, have been carried out to reduce the usage of SF6. Air mixtures by experiments and found that this proportion is promising to perform a similar insulating behaviors as SF6. Similar as previous studies of SF6, the thermodynamic properties and decomposition characteristics of C5F10O are basic to understand its insulating and arc-quenching performance. To the best of our knowledge, Hyrenbach et al studied the heat transfer scitation.org/journal/adv properties of 5% C5F10O-95% air and 20% C5F10O-80% air mixtures and found that these proportions are not promising to replace SF6 but have a better behavior than pure air. Wu et al calculated the compositions of C5F10O plasma and transport coefficients and found C5F10O has similar characteristics to SF6 below 4,500 K but CO decomposition at 7,000 K may detract from the thermal interruption capability. Our previous work studied the possible decomposition pathways C5F10O and rate constants using quantum chemistry method
Sign-in/Register to view highlights & summary 
Published Version (
Free)
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 callDisclaimer: 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.
