Dielectric Breakdown Properties for High Temperature HFO-1234yf/CO2 Gas Mixture with Consideration of Predominant Molecular Products at 300–3000 K

With regard to HFO-1234yf mixed with CO
2
as a buffer gas, this paper describes dielectric breakdown properties such as an electron attachment coefficient and a critical reduced electric field strength E
cr
/N at 300–3000 K. First, this paper covers predominant molecular products through thermal dissociation and combination reactions for 20%HFO-1234yf/80%CO
2
gas mixture. Secondly, dielectric breakdown properties of the mixture in consideration of the predominant gaseous molecular products are described to show that E
cr
/N is 87–100 Td at 300–3000 K.