Zobrazeno 1 - 10
of 15
pro vyhledávání: '"D. C. Strachan"'
Autor:
D C Strachan
Publikováno v:
Measurement + Control, Vol 18 (1985)
Externí odkaz:
https://doaj.org/article/1b2a317bce044d688d5c392b2a700907
Autor:
M R Barrault, D C Strachan
Publikováno v:
Journal of Physics D: Applied Physics. 9:435-446
A simple method for estimating mean arc velocities in high-current free-burning arcs is presented. Typical results are presented for arcs burning to copper, graphite and steel cathodes employing experimental values of arc current, electric field, rad
Publikováno v:
Journal of Applied Physics. 48:2324-2330
The importance of total radiation losses from high‐current arcs burning in highly accelerated air flows representative of conditions existing in commercial gas‐blast switchgear has been investigated. Such losses have been measured both in the hig
Autor:
K. G. Evans, D. C. Strachan
Publikováno v:
International Journal of Electronics. 36:655-669
Measurements are reported of the temperature changes which arise at arc heated carbon electrodes when the heating current is suddenly interrupted. The use of a microsecond risetime photopyrometer reveals the presence of surface temperature decays, so
Autor:
D C Strachan
Publikováno v:
Journal of Physics D: Applied Physics. 8:703-713
Radiative energy losses from an arc in jet air flow have been studied. By confirming the importance of these losses, the author supplements a previous paper (see abstr. A82063 of 1974) in which a large discrepancy in the arc energy balance was attrib
A study of cooling water requirements for the protection of metal surfaces against thermal radiation
Autor:
Y. Lev, D. C. Strachan
Publikováno v:
Fire Technology. 25:213-229
Among the hazards posed to storage tanks by thermal radiation are the effects of changes in the mechanical strength of the metal at high temperatures that may lead ultimately to failure. Alarge-scale experimental study has been made of the water cool
Autor:
D. C. Strachan
Publikováno v:
International Journal of Electronics. 38:197-208
Comparisons are made between the predictions of a quasi-static model of freely recovering refractory electrode regions and measurements obtained with a new plasma/electrode configuration. The plasma was generated within a cascade arc system operated
Autor:
D C Strachan
Publikováno v:
Journal of Physics D: Applied Physics. 10:361-370
Studies of pulsed free-burning arcs in air on steel cathodes at kiloampere (I 6 ms, the arc becomes unstable, and this is believed to be associated with the diminished importance of cathode jet convection.
Autor:
D. C. Strachan
Publikováno v:
International Journal of Electronics. 37:521-531
The author has previously shown how the ‘free-recovery ’ technique can be applied to studies of the electrode regions of interrupted arcs. In particular, the dominant parameters of interest, for the low current carbon arcs studied, were shown to
Publikováno v:
Journal of Physics E: Scientific Instruments. 18:492-498
The use of an infrared imaging technique for the visualisation of hydrocarbon gases and vapours has been demonstrated. The theoretical background of the method is discussed, as are some general instrumentation requirements. Laboratory investigations