Model heating of the injection system beam receptacle fragments in fusion facilities by the scanning electron beam in the studies of critical thermal operating conditions

Naumov, V. K.; Semashko, N. N.; Komov, A. T.

doi:10.1080/10519999508225566

Cited by 9 publications

(1 citation statement)

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“…A standard beam equipment is added with a set for horizontal and vertical beam scanning providing its scanning over the surface of heating according to a preset law of beam movement (triangle) with the frame frequency f= 10 kHz and the line frequency in the frame N = 64. Such parameters of the beam scanning allow one to realize a uniform power distribution over the surface of heating [4]. The electron beam power control is done by varying the anode current (up to 250mA) and choosing a discrete value of the accelerating voltage (30,40,50 kV).…”

Section: System Of Heatingmentioning

confidence: 99%

Experimental study of the heat exchange in the dumps of injection systems at fusion facilities

Komov¹,

Varava²,

Дедов³

et al. 1999

Plasma Devices and Operations

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The results of the heat exchange experimental studies in a cylindrical pipe under singlesided heating with beams of charged particles (electrons) of high density of thermal energy are presented.The heat removal realized by a straight fluid flow, as well as by a twisted with a screw conveyer insertion one, strongly subcooled below the saturation temperature is presented.The experiments were done with a pipe fragment of the beam collector of the T-15 tokamak injection system. An experimental correlation to a curve of boiling, being a part of the adiabatic cross-section technique for calculating the heat removal parameters in multichannel of high power beams dumps (V.K. Naumov et a/., Plasma Devices and Operations, 8, 1999), is presented.It is shown that the removed thermal flux density can attain -100MW/m2 under the long-pulse heating (-120 s) and under heat removal conditions with the twisted under heated flux of -170°C. It should be noted that the fatigue surface destruction takes place after 70 cycles of loading with the mentioned fluxes.

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Section: System Of Heatingmentioning

confidence: 99%