This paper proposes the elaboration model of energy requirement prediction taking into account power standby, spindle rotation in non-load, feeding, and rapid movement X, Y, Z+, Z− axially, specific consumption (SEC) X Y cutting directions, respectively, which could not be considered complete other models. Each part machine tools obtained through little experiments for identifying relationship ...

Water extraction from air, based on reverse cycle systems, is becoming a technology more and diffused various models of air to water generators (AWG) are now available, all claiming the best efficiency. To date, there not standard indicator stating energy efficiency for AWGs, neither in literature nor technical practice. The only evaluation parameter, that can be found sort specific consumption...

The present study examined the effect of ultrasonic pretreatment at three time levels 10, 20 and 30 min on some thermodynamic (effective moisture diffusivity coefficient(Deff), drying time, specific energy consumption (SEC), efficiency, thermal efficiency) physical (color shrinkage) properties kiwifruit under hybrid hot air-infrared(HAI) dryer different temperatures (50, 60 70 °C) thicknesses (...

The kinetics of the reaction between Iäaq and S^O^g has been studied under conditions of production of iodine at a known rate by the persulfate-iodide reaction and its consumption by 5..03 . The effective concentration of iodine during the steady state is measured from its reduction potential at a bright platinum foil electrode. The reaction is of first order with respect to I3~ and 5..03 indiv...

Thermal plasma pyrolysis is a powerful technology for converting waste or low-value materials to valuable gaseous hydrocarbons. This paper presents for the first time the hydropyrolysis of n-hexane and toluene in a rotating-arc plasma reactor. Effects of the mole ratio of H/C in the feed, power input and magnetic induction were investigated to evaluate the reaction performance. A lower H/C rati...

Batch RO is designed to achieve high energy efficiency and recovery in desalination. However, so far relatively few experiments on batch have been reported. Here we present an extensive experimental study of a single-acting, free-piston system using 8-inch spiral wound membrane. The was tested the laboratory with brackish feed water containing up 5 g/L NaCl. objective quantify performance terms...

In some areas limited water resources combined with the fast growing population are leading to a crucial situation because of the increase in water demand. Besides, an estimated one billion people are living both without access to clean drinking water or electricity. Therefore, a stand alone photovoltaic-power based hybrid membrane desalination prototype has been designed to meet this challenge...

Since the specific energy consumption (SEC) required for reverse osmosis (RO) desalination has been steeply reduced over past few decades, there is an increasing demand high-selectivity membranes. However, it still hard to find research papers empirically dealing with salt rejection of RO membranes and addressing SEC change possibly occurring while rejection. Herein, we examined feasibility pro...