Temperature rise characteristics of C5F10O/CO2 gas mixture AC high voltage switch bus DOI Creative Commons
Zhaoxuan Cui, Xin Lin, Xiaolong Li

et al.

High Voltage, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 31, 2024

Abstract C 5 F 10 O/CO 2 gas mixture is one of the most promising alternatives to SF 6 as an insulating in high‐voltage switchgear. As a key performance index product design, temperature rise characteristics are rarely reported. In this paper, thermodynamic parameters were calculated first. Then, calculation model transient was constructed for 252 kV/3150 A bus, and experimental platform built verify reliability proposed model. On basis, influence different factors such load current, charging pressure, mixing ratio, structure size on bus further analysed, it found that increasing pressure ratio O could effectively reduce but still not reach level . The main affects outer diameter conductor, which increases by 10.2%, same original bus. Finally, high‐precision surrogate model, combined with Latin hypercube coefficient prognosis, Kriging fitting method established facilitate structural design.

Language: Английский

Comment on “Assessing the atmospheric fate of trifluoroacetaldehyde (CF3CHO) and its potential as a new source of fluoroform (HFC-23) using the AtChem2 box model” by Pérez-Peña et al., Environ. Sci.: Atmos., 2023, 3, 1767–1777, DOI: 10.1039/D3EA00120B DOI Creative Commons
Olav Wendelboe Nielsen, Mads P. Sulbæk Andersen,

J. P. Franklin

et al.

Environmental Science Atmospheres, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Trifluoroacetaldehyde is a degradation product from the atmospheric of some common hydrofluoroolefins (HFOs). In commentary we discuss potential fates trifluoro acetaldehyde: OH reaction, photolysis and wet dry deposition.

Language: Английский

Citations

1
Reply to the ‘Comment on “Assessing the atmospheric fate of trifluoroacetaldehyde (CF3CHO) and its potential as a new source of fluoroform (HFC-23) using the AtChem2 box model”’ by O. J. Nielsen, M. P. Sulbaek Andersen and J. Franklin, Environ. Sci.: Atmos., 2025, 5, DOI: 10.1039/D4EA00123K DOI Creative Commons
María Paula Pérez-Peña, Jenny A. Fisher, Christopher S. Hansen

et al.

Environmental Science Atmospheres, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

In Pérez-Peña et al. (DOI: https://doi.org/10.1039/d3ea00120b), we used a suite of box model simulations to determine how trifluoroacetaldehyde (CF 3 CHO) produced from HFO-1234ze is lost in the atmosphere and much fluoroform (CHF or HFC-23) could potentially be as result. For first time any modelling study, our included both minor CF CHO photolytic loss channel leading CHF production physical removal via wet dry deposition. their comment, Sulbaek Andersen, Nielsen, Franklin query assumptions simulate these processes. Here, show that importance pathway remains matter community debate results are relatively insensitive underlying simulation We reiterate need for measurements properties reduce uncertainties processes pave way more sophisticated models.

Language: Английский

Citations

0
Temperature rise characteristics of C5F10O/CO2 gas mixture AC high voltage switch bus DOI Creative Commons
Zhaoxuan Cui, Xin Lin, Xiaolong Li

et al.

High Voltage, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 31, 2024

Abstract C 5 F 10 O/CO 2 gas mixture is one of the most promising alternatives to SF 6 as an insulating in high‐voltage switchgear. As a key performance index product design, temperature rise characteristics are rarely reported. In this paper, thermodynamic parameters were calculated first. Then, calculation model transient was constructed for 252 kV/3150 A bus, and experimental platform built verify reliability proposed model. On basis, influence different factors such load current, charging pressure, mixing ratio, structure size on bus further analysed, it found that increasing pressure ratio O could effectively reduce but still not reach level . The main affects outer diameter conductor, which increases by 10.2%, same original bus. Finally, high‐precision surrogate model, combined with Latin hypercube coefficient prognosis, Kriging fitting method established facilitate structural design.

Language: Английский

Citations

0