The atomization process is critical for combustion systems since it directly influences emissions and performance. Thus injection system should provide the spray required structure characteristics, e.g., angle droplet size distribution. Therefore, this work investigates effects of varying fuel type, air co-flow rates, mass flow rate temperature on characteristics (e.g., distribution velocity) i...

Abstract Since perfluorohexanone can play a role in cooling and extinguishing the heat loss of lithium batteries, it is urgent to study atomization characteristics different ambient pressures (49 kPa, 75 101 kPa) ensure flight safety all-electric aircraft future storage use lithium-ion battery high plateau areas. The process primary secondary breakup was studied by using VOF-DPM model, influenc...

This research presents 3D steady-state simulations of a skim milk spray drying process in counter-current configuration dryer. A two-phase flow involving gas and discrete phase is modeled using the Eulerian–Lagrangian model with two-way coupling between phases. The kinetics incorporated Reaction Engineering Approach. predictions are found to be accordance experimental temperature measurements m...

the pressure drop of refrigerant r-134a flow boiling inside a horizontal tube has been investigated experimentally. the test set-up which was used in this investigation is a well instrumented vapor compression refrigeration system. these instruments are thermocouples, flow meter, pressure gauges and the pressure drop measuring apparatus. this system consisted of three electrically heated evapor...

PURPOSE We aimed to 1) determine the time of maximum cycloplegia after instillation of cyclopentolate 1% in children with brown irises, 2) evaluate the correlation between the pupillary reaction and time of maximum cycloplegia, and 3) identify any side effects of the medication. PATIENTS AND METHODS This was a prospective analytical study involving children aged 5 to 14 years who were attendi...

Diameter, velocity, and charge measurements of progeny droplets produced in-flight by a millimeter-size parent drop subjected to electric and ionic fields are reported. Different drop breakup modes were studied using phase doppler anemometry and high-speed digital photography. Drop breakup occurred in applied electric (∼1 kV/cm to ∼10 kV/cm) and ionic (∼10(13)/m(3) to ∼10(15)/m(3)) fields that ...

The effect of storage time on the coalescence stability and drop size distribution of egg yolk (EY) and whey protein concentrate (WPC) stabilized emulsions is studied. The emulsion stability is evaluated by centrifugation, whereas the drop size distribution is measured by means of NMR and optical microscopy. The experimental results show that there is no general relation between the emulsion st...

in this paper, the effects of several factors such as surfactant concentration, solute concentration, impeller speed and holdup on the mean drop diameter ( ) during emulsification have been studied in a single-stage mixer-settler extractor. a video technique has been developed in order to measure drop size distribution in the mixing chamber using a digital camera. the results show decreases wit...

multiphase flows are commonly encountered in oil and gas industries. the transport of multiphase flow causes the formation of slug, the increase of pressure drop and the possibility of phase changes therefore, a set of simulation runs was performed to predict flow regimes in a horizontal pipeline, and the results were compared with the baker chart. the effects of small downward inclinations of ...

In this paper, the effects of several factors such as surfactant concentration, solute concentration, impeller speed and holdup on the mean drop diameter ( ) during emulsification have been studied in a single-stage mixer-settler extractor. A video technique has been developed in order to measure drop size distribution in the mixing chamber using a digital camera. The results show decreases wi...