Experimental Study on Observation and Evaluation of Partial Discharges in an Embedded Artificial Cylindrical Cavity between Glass Epoxy Boards

In order to reveal the law of double-diffusive convection of multi-compound solution in cylindrical cavity, experimental study on solidification of NH4Cl-H2O hypereutectic solution has been performed by using particle image velocimetry (PIV). The influencing factors of flow patterns and intensity are also analyzed. The results show that: 1) There are two approximately symmetric main convection cells in the liquid which are down along the sidewall and up along the center of the cylindrical cavity. Meanwhile, there are also two secondary cells on the bottom corner of cylindrical cavity, which flow in contrary direction to that of the main ones; 2) Due to the release of water during the solidification process, solute layers and diffusive interface are developed in the liquid and will be disappeared in the end; 3) The cooling temperature and the initial concentration have significantly effects on the flow velocity, solute layers and diffusive interface.

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An experimental study to investigate the effects of partial discharges (PD), of electric field and of relative humidity during surface PD tests on thin polymer films

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) ◽

10.1109/ceidp.1999.804635 ◽

2003 ◽

Cited By ~ 3

Author(s):

L. Centurioni ◽

G. Coletti ◽

F. Guastavino

Keyword(s):

Experimental Study ◽

Relative Humidity ◽

Electric Field ◽

Polymer Films ◽

Partial Discharges ◽

Thin Polymer Films ◽

Thin Polymer

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Experimental study on a feasibility of using electromagnetic wave cylindrical cavity sensor to monitor the percentage of water fraction in a two phase system

Sensors and Actuators A Physical ◽

10.1016/j.sna.2016.05.005 ◽

2016 ◽

Vol 245 ◽

pp. 140-149 ◽

Cited By ~ 12

Author(s):

C.S. Oon ◽

M. Ateeq ◽

A. Shaw ◽

A. Al-Shamma’a ◽

S.N. Kazi ◽

...

Keyword(s):

Experimental Study ◽

Electromagnetic Wave ◽

Cylindrical Cavity ◽

Phase System ◽

Two Phase ◽

Water Fraction

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Thermal Convection in Tilted Cylindrical Cavities Embedded in Rocks

Volume 1 ◽

10.1115/ht-fed2004-56672 ◽

2004 ◽

Author(s):

F. Sa´nchez ◽

A. Medina ◽

F. J. Higuera

Keyword(s):

Experimental Study ◽

Thermal Convection ◽

Cylindrical Cavity ◽

Solid Rock ◽

Saturated Porous Medium ◽

Vertical Temperature Gradient ◽

Vertical Temperature ◽

Fluid Saturated Porous Medium ◽

Cylindrical Cavities ◽

Temperature And Pressure

We present a theoretical and experimental study of the thermal convection in a fluid-filled, tilted cylindrical cavity and in a fluid-saturated porous medium filling a cylindrical cavity embedded in a solid slab (solid rock) which has a constant vertical temperature gradient far from the cavity. Closed-form, analytical solutions are obtained for the temperature field in the solid and for the velocity, temperature and pressure within the cavity.

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