Effect of configuration (structure of electrode, interelectrode gap, positions of inlet and outlet, volume of the cell and additional nets) on mass transfer characteristic of a filter-press type electrochemical cell has been studied. The mass transfer coefficients on the electrodes were obtained by using the well-known technique based on the determination of limiting diffusion current. It is fo...

Within the frame of the “SWAMP” project (a demonstration project co-financed by the European Community) an hybrid constructed wetland (CW) system was realized for the treatment of wastewater produced by a medium-size hotel located in Florence, Italy. The system consisted of a 70 m primary treatment by Imhoff tanks, a 160 m HF and a 180 m VF. The results obtained in the first year of operation r...

In hot summers, air conditioning (AC) and mechanical ventilation (such as fans) are used cooling modes that strongly influence the resultant indoor environment, like thermal comfort quality in shops of a Nanning arcade street (qilou). The circulation mode greatly affects environment level freshness. approaches for effectively improving developed qilou with air-conditioner humid region southern ...

• The actual flow rate is constant for the outlet pressure range of 35.30 psig to as low as a complete vacuum. The flow rate can be obtained from the charts on pages 16-18; e.g. for an orifice of .010" diameter and with 80 psig inlet pressure, the choked flow rate is 8.4 scfh (page 16). This flow rate will be constant for all outlet pressure conditions between 35.30 psig and full vacuum. 0 1 .5...

In this data article, we evaluated the daily fluoride contents in 20 household desalinators working by reverse osmosis (RO) process in Bushehr, Iran. The concentration levels of fluoride in inlet and outlet waters were determined by the standard SPADNS method using a spectrophotometer (M501 Single Beam Scanning UV/VIS, UK). The fluoride content in outlet waters were compared with EPA and WHO gu...

Solar water heaters are good tools for saving fuel. The main component of these water heaters is collectors, which are responsible for absorbing solar energy and transferring it to the working fluid with the least heat dissipation. The present study is an experimental study of the performance of the solar semispherical collector with 1 m2 of absorber area at different volumetric flow...

In this paper, numerical study of forced convection heat transfer in a square cavity with inlet and outlet slots and hot obstacle with and without porous medium was investigated. The walls of cavity in addition of inlet and outlet ports are thermally insulated and the obstacle is maintained at constant temperature. A lattice Boltzmann model for incompressible flow in porous media and Brinkman F...

Tbis paper describes a method for the design of an infinite cascade in incompressible Dow. The method is bued on conformaJ mapping and does aJlow for multipoint design. The cascade blade to be determined is divided into a desired number of segments. Over each segment. the velocity distribution is prescribed together with an inlet or outlet Dow angle at which this velocity distribution is to be ...

BACKGROUND: Microbial quality of drinking water is very important in animal health. OBJECTIVES: The present survey was conducted to evaluate the microbial quality of cows' drinking water in dairy farms in Mashhad suburb, Iran, to find out defects in this field. METHODS: Water samples were taken from 30 farms and 4 sites including: Water tanks,  inlet and outlet  of bovine drinking troughs and c...