Factors effecting the efficiency of cyclone as per Industrial dust collector Philippines

This is prime factor effecting the pressure drop and hence the cyclone efficiency is the inlet velocity as per Industrial dust collector Philippines. Efficiency increases with increase in velocity as centrifugal force increases but this also increases the pressure drop which is not favorable. Cyclones are devices that employ a centrifugal force generated by a spinning gas stream to separate particles from the carrier gas. Fluid mixture enters the cyclone and makes a swirl motion and, due to centrifugal force, the dense phase of the mixture gains a relative motion in the radial direction and is separated from main flow.

Industrial dust collector Philippines includes Avlon Engineers who are generally interested in two parameters in order to carry out an assessment of the design and performance of a cyclone. These parameters are the collection efficiency of particle and pressure drop through the cyclone. An accurate prediction of cyclone pressure drop is very important because it relates directly to operating costs. Higher inlet velocities give higher collection efficiencies for a given cyclone, but this also increases the pressure drop across the cyclone. We at Industrial dust collector Philippines design the cyclone separator with vortex finder as core to its design. The vortex finder size is an especially important dimension, which significantly affects the cyclone performance as its size plays a critical role in defining the flow field inside the cyclone, including the pattern of the outer and inner spiral flows. The vortex finder affected the collection efficiency and pressure drop of cyclones, and proposed an energy-effective cyclone design.

CYCLONE DIAMETER AS PER INDUSTRIAL DUST COLLECTOR PHILIPPINES.

Also, decreasing the cyclone diameter increases centrifugal force and hence efficiency. The maximum tangential velocity in the cyclone decreases with increasing the cyclone inlet dimensions. No acceleration occurs in the cyclone space (the maximum tangential velocity is nearly constant throughout the cyclone). Increasing the cyclone inlet dimensions decreases the pressure drop. The cyclone cut-off diameter increases with increasing cyclone inlet dimension (consequently, the cyclone overall efficiency decreases due to weakness of the vortex strength). Industrial dust collector Philippines believes that the effect of changing the inlet width is more significant than the inlet height especially for the cut-off diameter. The optimum ratio of inlet width to inlet height b/a is from 0.5 to 0.7.

3.GAS INLET VISCOSITY:

The operating parameters of the system should be used to predict performance, and most theories account for the influence of particle diameter and density, and gas velocity and viscosity.

With decrease in viscosity, efficiency increases. This is due to reduction in drag force with reduction in viscosity. As the liquid viscosity increases the shear stresses increase too producing a higher dissipation of the vortex intensity and as a consequence the separation efficiency is diminished. In theory, the smallest diameter of particles collected with 100% efficiency is directly related to gas viscosity and inlet duct width, and inversely related to the number of effective turns, inlet gas velocity, and density difference between the particles and the gas.

4.GAS TEMPERATURE:

Decrease in temperature will increase the gas density. One may be tempted to conclude that this will increase Industrial dust collector Philippines efficiency as viscosity decreases. But increase in temperature also decreases the volumetric flow rate and thereby decreasing efficiency. At the same inlet velocity, both the separation efficiency and pressure drop decrease with increasing temperature. In addition, optimum inlet velocity, at which the cyclone has its highest separation efficiency, tends to increase with a rise in temperature.

With the use of suitable materials and methods of construction, cyclones can be managed under extreme operating conditions, especially at temperatures over 900 °C — conditions under which other separation technologies cannot work. In these harsh environments, cyclones currently are the sole, fully commercial solution to the removal of particles from elevated-temperature gases. Their main disadvantage, however, is low efficiency for particles less than 5 µm in size.

5.PARTICLE LOADING:

Another important factor affecting the efficiency is particle loading. With high loading the particles collide with each other more and results into pushing of particle towards wall. This in turn increases efficiency. Hence the separation efficiency is increased with the increase of the particle diameter. However, when the particle diameter exceeds a critical size, the particles will deposit on the wall of the conical chamber, which leads to lower separation efficiency for Industrial dust collector Philippines. Cyclone separators are usually used for removing particles 10 μm in size and larger. However, conventional cyclones seldom remove particles with an efficiency greater than 90% unless the particle size is 25 μm or larger. High-efficiency cyclones can remove particles down to 5 μm. Regardless of the design, the fractional removal efficiency of any cyclone drops significantly beyond a certain particle size, however incorporation of a water scrubber after the cyclone effectively removes all dust particles.

Avlon Inc is one of the Industrial dust collector Philippines. The are leading in Sewage Treatment Plant, Wet Scrubber, Waste water Treatment Plant, Dust Collectors and Boilers. They have the best cyclone separator attached in their designs. Know more about avlon at www.avlon-php.com