Abstract Electrochemical water treatment technology can be used for hard softening, but its removal efficiency and energy consumption problems hinder application. The effects of electrolysis voltage cathode materials on efficiency, scale crystal form electrochemical were studied experimentally. experimental results show that effectively remove more than 40% the TDS (total dissolved solids) in i...

Efficiency of reduction of PCBs in aqueous solution was examined with the help of bimetallic catalyst Fe-C/Pd consisting of palladized grey cast iron and with a newly designed trimetallic catalyst (Cu-Fe-C/Pd) consisting of a copper metal plate with embodied microparticles of palladized grey iron (bimetallic catalyst). PCB solutions were prepared using DELOR 103. The trimetallic catalyst was si...

This paper analyzes the effect of sliding speed on electrical conductivity and friction properties contact pair an on-load tap changer (OLTC). Reciprocating current-carrying tribological tests were carried out a rod–plate–copper–tin–copper galvanic couple at different speeds in air insulating oil media. The results show that as increases from 24 mm/s to 119 mm/s, average resistance 0.2 ? 0.276 ...

The objective of the present work is to study influence copper nanoparticle concentration on heat transfer performance a mixed base fluid. In study, nanoparticles in ethylene glycol (eg) + propylene (pg) water (W) fluid was analyzed chevron- type plate exchanger. sol-gel method used prepare (100 nm), dispersed two different fluids volume fractions 5%EG 5%PG 90%W and 15%EG 80%W. Experiments were...

A comparative study of nanofluid (Cu–H2O) and pure fluid (water) is investigated over a moving upright plate surrounded by porous surface. The novelty the includes unsteady laminar MHD natural transmission flow an incompressible fluid, to get thermal conductivity more than fluid. chemical reaction this with respect radiation absorption observed considering nanoparticles attain equilibrium. pres...