The University of Southampton
University of Southampton Institutional Repository

Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone

Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone
Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone

The AC and DC dielectric properties of hydrofluoroethers (HFE) [C3FOCH3 ] and fluorinated ketone (FK) [C2F5 C(O)CF(CF3)2] have been characterised by dielectric spectroscopy and DC conductivity at different temperatures. Results show that DC conductivity and imaginary permittivity of both fluids are positively correlated with increasing temperature. However, the real permittivity decreases with increasing temperature. The breakdown voltages of HFE and FK at 295 K are∼10 kV mm−1 . Reducing temperature is an effective method to increase the breakdown voltage of the FK coolant, but the breakdown voltage of HFE is less temperature dependent. Finally, as expected repeated breakdown had no significant effect on the AC dielectric strength of both liquids.

1751-8822
329-336
Wu, Sijun
73a763f3-66a6-4cac-a2fe-c83e7e30fa56
Chippendale, Richard D.
18bccba7-02f3-4f9f-97d3-a8733dc7226d
Lewin, Paul L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Hemrle, Jaroslav
d9cbe9ae-04d0-4d31-bf54-907b735050d9
Kaufmann, Lilian
f5677ddf-0292-47d6-90bd-de33158ab44e
Wu, Sijun
73a763f3-66a6-4cac-a2fe-c83e7e30fa56
Chippendale, Richard D.
18bccba7-02f3-4f9f-97d3-a8733dc7226d
Lewin, Paul L.
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Hemrle, Jaroslav
d9cbe9ae-04d0-4d31-bf54-907b735050d9
Kaufmann, Lilian
f5677ddf-0292-47d6-90bd-de33158ab44e

Wu, Sijun, Chippendale, Richard D., Lewin, Paul L., Hemrle, Jaroslav and Kaufmann, Lilian (2019) Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone. IET Science, Measurement & Technology, 13 (3), 329-336. (doi:10.1049/iet-smt.2018.5046).

Record type: Article

Abstract

The AC and DC dielectric properties of hydrofluoroethers (HFE) [C3FOCH3 ] and fluorinated ketone (FK) [C2F5 C(O)CF(CF3)2] have been characterised by dielectric spectroscopy and DC conductivity at different temperatures. Results show that DC conductivity and imaginary permittivity of both fluids are positively correlated with increasing temperature. However, the real permittivity decreases with increasing temperature. The breakdown voltages of HFE and FK at 295 K are∼10 kV mm−1 . Reducing temperature is an effective method to increase the breakdown voltage of the FK coolant, but the breakdown voltage of HFE is less temperature dependent. Finally, as expected repeated breakdown had no significant effect on the AC dielectric strength of both liquids.

Full text not available from this repository.

More information

e-pub ahead of print date: 17 December 2018
Published date: May 2019

Identifiers

Local EPrints ID: 431023
URI: http://eprints.soton.ac.uk/id/eprint/431023
ISSN: 1751-8822
PURE UUID: 2589cbf1-2b1d-458d-abc4-5abd6d1f5a28

Catalogue record

Date deposited: 22 May 2019 16:30
Last modified: 22 May 2019 16:30

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×