This paper was aimed to study the efficiency of forward osmosis (FO) process as a new application for treatment wastewater from textile effluent and factors affecting performance process.The draw solutions used were magnesium chloride (MgCl2), aluminum sulphate (Al2 ( SO4)3 .18 H2O), feed reactive red, disperse blue dyes.Experimental work includes operating using thin film composite (TFC) membr...

In the paper, impact of limitation environment around office synthetic jet actuators were tested. One short and three length orifices tested compared with without confinement plate. total, seven different investigated. The constant temperature anemometer was used for velocity measurements. Reynolds number in range 2300 < Re 19,500, Stokes 46 S 62. plate decreased depending on actuator supply...

Hot-wire anemometric measurements of non-isothermal flows require the use of thermal compensation or correction circuitry. One possible solution is a two-state hot-wire anemometer that uses the cyclically changing heating level of a single sensor. The area in which flow velocity and fluid temperature can be measured is limited by the dimensions of the sensor's active element. The system is desi...

We report a novel fiber-optic anemometer with self-temperature compensation capability based on a Fabry-Pérot interferometer (FPI) formed by a thin silicon film attached to the end face of a single-mode fiber. Guided in the fiber are a visible laser beam from a 635 nm diode laser used to heat the FPI and a white-light in the infrared wavelength range as the signal light to interrogate the optic...

The one-directional flow condition and the bi-directional are two conditions that can be found in many energy systems depending on nature of working mechanism system. This paper reports differences heat transfer performance for an in-line tube banks exchanger is placed conditions. experiments involve use a blower as inducer while loudspeaker with constant frequency 14.2 Hz used condition. A qua...

Electrochemical impedance spectroscopy (EIS) has been used to estimate the non-frequency dependent (static) dielectric constants of base polymers such as poly(vinyl chloride) (PVC), cellulose triacetate (CTA) and polystyrene (PS). Polymer inclusion membranes (PIMs) containing different amounts of PVC or CTA, along with the room temperature ionic liquid Aliquat 336 and plasticizers such as trisb...

Flow sensors commonly are used in, for example, micro liquid handling systems or for measuring gas flows. One example is a gas flow sensor used as a microphone: the Microflown [3]. This sensor is designed to measure particle velocity, very small flows in a frequency range up to twenty kilo Hertz. While the signal to noise ratio is a very important parameter of the microflown an innovative measu...

Micromachined resistors are thermal transducers that can be used to measure air and water flow rate. For the thermal resistor to function as a flow sensor, the electrical resistivity must be a strong function of temperature it must be sufficiently thermally isolated from the supports and substrate. The thermal resistor can be made of a metal or doped semiconductor and can thermally isolated by ...

This work describes the fundamentals and calibration procedure of an instrument for in vivo evaluation of the heat convection coefficient between the endocardium and the circulating blood flow. The instrument is to be used immediately before radio-frequency cardiac ablation is performed. Thus, this instrument provides researchers with a valuable parameter to predict lesion size to be achieved b...