Dichlorodifluoromethane-carbon dioxide: A dielectric mixture as a sustainable alternative to SF6 in high voltage applications

Khan，Sajjad Ali1; Habib，Salman2; Khan，Muhammad Yasir Ali3; Chauhdary，Sohaib Tahir4; Ali，Abdar5; Kamel，Salah6; Elnaggar，Mohamed F.7,8

2023

10.3389/fmats.2023.1129739

Frontiers in Materials   Impact Factor & Quartile

2296-8016

2296-8016

Sulphur hexafluoride (SF) gas is the frequently consumed gas in High Voltage (HV) applications due to its high dielectric permittivity and arc-quenching property. However, due to its long Atmospheric Lifetime (AL), high Global Warming Potential (GWP), and other environmental concerns there is a need for a new sustainable gas as an alternative to SF. Therefore, in this research, we present dichlorodifluoromethane (R-12) in conjunction with carbon dioxide (CO) as an alternative. Compared to SF, R-12 has 3,100 years shorter atmospheric lifetime and 15,400 less GWP. Moreover, CO is mixed with R-12 as a gas carrier to achieve a low boiling point as that of SF. High Voltage Direct Current (HVDC), High Voltage Alternating Current (HVAC), and self-recoverability tests were conducted under varying concentrations of gas ratios at different pressures and a standard constant temperature. Comparison analysis showed that R-12 dielectric strength is close to that of SF, and its mixture with CO possessed increased dielectric strength compared to a nitrogen and air mixture beyond 206.84 kPa. For HVAC and HVDC, a mixture of 50% R-12% and 50% CO establishes an unimpeachable ratio for HV applications. The mixture has self-recoverability properties and possesses positive synergism, which leads to the conclusion that the mixture of R-12 with CO enhances the dielectric strength compared to pure gases, as well as reduces costs.

atmospheric lifetime dielectric strength global warming high voltage R-12 gas synergistic effect

SCI

English

Corresponding

prince Sattam bin Abdulaziz University[PSAU/2023/R/1444]

Materials Science

Materials Science, Multidisciplinary

WOS:000962148700001

FRONTIERS MEDIA SA

2-s2.0-85151983467

Scopus

1.Department of Electrical and Computer Engineering,COMSATS University Islamabad,Abbottabad,Pakistan
2.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,China
3.College of Energy and Electrical Engineering,Hohai University,Nanjing,China
4.Department of Electrical and Computer Engineering,College of Engineering,Dhofar University,Salalah,Oman
5.School of Electronic,Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai,China
6.Department of Electrical Engineering,Faculty of Engineering,Aswan University,Aswan,Egypt
7.Department of Electrical Engineering,College of Engineering,Prince Sattam Bin Abdulaziz University,Al-Kharj,Saudi Arabia
8.Department of Electrical Power and Machines Engineering,Faculty of Engineering,Helwan University,Hewlan,Egypt

Khan，Sajjad Ali,Habib，Salman,Khan，Muhammad Yasir Ali,et al. Dichlorodifluoromethane-carbon dioxide: A dielectric mixture as a sustainable alternative to SF6 in high voltage applications[J]. Frontiers in Materials,2023,10.

Khan，Sajjad Ali.,Habib，Salman.,Khan，Muhammad Yasir Ali.,Chauhdary，Sohaib Tahir.,Ali，Abdar.,...&Elnaggar，Mohamed F..(2023).Dichlorodifluoromethane-carbon dioxide: A dielectric mixture as a sustainable alternative to SF6 in high voltage applications.Frontiers in Materials,10.

Khan，Sajjad Ali,et al."Dichlorodifluoromethane-carbon dioxide: A dielectric mixture as a sustainable alternative to SF6 in high voltage applications".Frontiers in Materials 10(2023).