an experimental study has been conducted on the hydrodynamics of a stage mixer-settler to obtain an appropriate design. in this paper several tests was performed to investigate full factorial design of experiments. since each test was repeated seven times, the repeatability of the test was confirmed (p=1 bar and t=25 °c). sauter diameter was determined by photographing both the mixer and settle...

In the processing of colliding atomizers, a small change in inclination each orifice will double impact angle, seriously affecting its atomization performance. this paper, influence slight angle deviation on performance was studied steps 1°, quantitatively, for first time. The cavitation effect flow field combined with shape and parameters field. FLUENT used to simulate internal field, an indep...

We describe a method of designing shaped focal plane detectors for achieving a range of objectives in measurement of particles suspended in a fluid. These detectors can be designed to measure the total concentration in a wide size range (e.g. 200:1) or concentration in a size sub-range (e.g. 63<d<500 microm), and Sauter mean or volume mean diameter. The derivation of these shaped focal plane de...

Air-assist atomizers have been widely used in various applications such as the aerospace industry, internal combustion engines, molten metal, food processing, etc. The mean drop size for these was obtained through Shadowgraph imaging technique. This study aims to assess feasibility of acoustic chemometrics approach classifying atomizer types and predicting size, Sauter diameter (SMD), a two-pha...

An experimental study has been conducted on the hydrodynamics of a stage mixer-settler to obtain an appropriate design. In this paper several tests was performed to investigate full factorial design of experiments. Since each test was repeated seven times, the repeatability of the test was confirmed (P=1 bar and T=25 °C). Sauter diameter was determined by photographing both the mix...

an experimental study has been made of the hydrodynamics of a stage mixer-settler to obtain appropriate design information. in this paper several tests were done according to full factorial design of experiments with high reliability, since each test recurs seven times and the results of  them are very close to each other(p=1bar and t=25 °c). sauter diameter in each test is determined with phot...

In this article, Structured Laser Illumination Planar Imaging (SLIPI) is used in combination with the LIF/Mie ratio technique for extracting a reliable two-dimensional mapping of the droplets Sauter Mean Diameter (SMD). We show that even for the case of a fairly dilute spray, where single scattering events are in majority, the conventional LIF/Mie technique still remains largely affected by err...

The culture conditions of a multiphase fermentation involving morphologically complex mycelia were simulated in order to investigate the influence of mycelial morphology (Trichoderma harzianum) on castor oil and air dispersion. Measurements of oil drops and air bubbles were obtained using an image analysis system coupled to a mixing tank. Complex interactions of the phases involved could be cle...

The population balance model which was developed and verified in the FeatFlow environment has been implemented into OpenFOAM software package. Sulzer CompaxTM mixer is numerically studied with the developed computational tool. The numerical results have been compared with experimental ones and the results have been found to be in good agreement. An interesting experimental finding, decreasing S...