Aeroponic planting is proved to be the one of the most efficient growing environments for many vegetable crops. In this technique, plants are cultivated in absence of soil and the required nutrients are directly supplied to the roots through a fogging system. In modern sprayers, water is atomized by means of ultrasound waves. The aim of the present study was to investigate the effect of ultraso...

A predictive model for droplet size and velocity distributions of a pressure swirl atomizer has been proposed based on the maximum entropy formalism (MEF). The constraint conditions of the MEF model include the conservation laws of mass, momentum, and energy. The effects of liquid swirling strength, Weber number, gas-to-liquid axial velocity ratio and gas-to-liquid density ratio on the droplet ...

In this study, the onset amplitude of initial capillary surface wave for ultrasonic atomization fluids has been implemented. The design and characterization 485 kHz microfabricated silicon-based nozzles are presented concept economic energy development. Each nozzle is composed a silicon resonator piezoelectric drive section consisting three Fourier horns. required minimum to atomize liquid drop...

This work studies synthesis of carbon nanotube (CNT) sheet using the high temperature (1400 °C) floating catalyst chemical vapor deposition (FC-CVD) method. Three metallocenes—ferrocene, nickelocene, cobaltocene—and their combinations are used as precursors for metal catalysts in process. For source, an alcohol fuel, a combination methanol and n-hexane (9:1), is used. First, metallocenes were d...

This work is a continuation of experimental and computational studies of the internal flow field of a large-scale Danfoss atomizer presented at an earlier ILASS conference [1,2]. Fluent 6.1 is used to simulate the flow through the large-scale atomizer. The two-phase flow is modeled using three approaches: 1) a volume of fluid (VOF) method using a laminar flow assumption, 2) a VOF method using l...

A desire for higher speed and performance in molecular profiling analysis at a reduced cost is driving a trend in miniaturization and simplification of procedures. Here we report the use of a surface acoustic wave (SAW) atomizer for fast sample handling in matrix-assisted laser desorption ionization mass spectrometry (MALDI MS) peptide and protein profiling of Islets of Langerhans, for future t...

Dynamic mesh atomizers have been widely used in various fields because of their compact structure, low energy consumption, and production costs. The finite element method is an important technique to analyze the factors affecting atomization performance dynamic atomizers. However, at present, there a lack decisive solutions basic problems boundary setting terms simulation vibration displacement...