The heightof mass transfer unit HOG decreased with increasing inclination angle β and decreasingunit height of the packing H ,and influence of opening ratio Φ on the height of masstransfer unit HOG had a suitable value, witch was about 6%-8%.
An experimental device of semi spherical head large opening inner extruded nozzle,with design pressure 5MPa,opening ratio d i/D i=0.6,length of inner extruded nozzle 20mm,was buiet. By means of electric measuring method,at the experimental pressuree of 3MPa,3.5MPa and 4MPa etc. The experimental stress of connection zone between head and inner extruded nozzle was analized.
Based on Bernoulli equation, nonlinear differential equation for dynamic internal pressure is derived and random vibration theory combined with iteration algorithm is used to obtain the solution. Numerical examples are provided to investigate frequency response characteristic of internal pressure and the influences of opening ratio, opening number and opening position on fluctuating internal pressure.
ILSS in treated carbon cloth PMC is decreased and carbonized 2D-C/C composites show characteristics of lower density, higher open porosity and smaller shrinkage of its matrix during carbonization, which leads to low thermal stress and less delamination of 2D-C/C composites.
(2) The resin-carbon matrixes porous C/C composites with high temperature treatment (HTT) have well-distributed pores, and is most beneficial to liquid silicon infiltration. The open porosity and density of C/C-SiC composites is 1% and 2.25 g· cm~(-3) respectively.
A overflow cone type with flat blades was presented for a kind of more simple swirl tower tray,series of calculation formula have been derived from aspects of structure parameters,blades,supporting ring plates,hole opening rate and blade lofting drawing etc.
Simulating the tray structure under salt forming by reducing opening rate of tray and bottom opening length of downcomer,and working out the fluid mechanics state of salt forming situation, the salt forming phenomenon was analyzed in principle.
The mechanism of internal pressure fluctuation is obtained by using the proposed method in the frequency domain and a new equivalent opening ratio is defined to evaluate internal pressure fluctuation.
Helmholtz resonance is likely to occur when the equivalent opening ratio is adequately high, and controlling individual opening dimension is an effective strategy for avoiding Helmholtz resonance in engineering.
The technique is illustrated in the case of a plane turbulent impinging twin-jet with an opening ratio of 10.
It is also demonstrated that large chirp and mismatch of the phase inversion reduces the eye opening ratio (EOR) which can seriously affect the performance of the wavelength converter to be used as a sub-system component in all-optical networks.
The effects of the feed rate, the gas flowrate and the opening ratio and hole diameter of the perforated plates on the operating stability of the fluidized bed were examined.
This is because energy losses by friction and water surface oscillations increase as the approach velocity from the gate increases as the gate opening rate is larger than 0.4.
The opening rate-constant appears to be voltage independent.
The probability of channel opening at high concentration was found to be >amp;gt;0.9 for each, thus showing (a) that their efficacy is high and (b) that the opening rate for the fully-liganded channel is higher than previously thought.
External Ba2+ decreased the Na channel opening rate and increased the closing rate.
At voltages close to the midpoint of the gating curve, the opening rate decreased by a factor of 1/2.8 while the closing rate increased by 2.0-fold.