The present study investigates the effect of varying particle size and porosity on heating behavior a metallic particulate compact in 2.45GHz multimode microwave furnace. Experiments copper suggest that unlike monolithic (bulk) materials, materials do couple with microwaves when they are form. powder compacts having higher smaller sizes interact more effectively heated rapidly. A dynamic electromagnetic-thermal model was developed to simulate temporal temperature distribution using 2-D...

The influence of Al 2 O 3 in the range 10–20 mass% and TiO 0.55–5 on flow behavior, viscosity, density, surface tension molten industrial blast furnace slag with CaO/SiO = 1.13 is investigated using a high‐temperature microscope, rotating viscometer, maximum bubble pressure method. measurement results show that acts as network former studied CaO–SiO –MgO–Al –TiO slags. With an increase content from 10 to 20 mass%, viscosity slags density decreases. In contrast , surfactant breaker up 15...

Objective our research work aim was the assessment of nephroprotective activity poly-herbal hydroalcoholic extract against streptozotocin-induced nephrotoxicity and renal dysfunction. Poly-herbal (PHHE) determined using dysfunction method. 200 300 mg/kg given for eight weeks to selected animals rat models. The biochemical parameters like as lipid profile, functional, antioxidant enzyme level, anti-inflammatory factors histopathological evaluations were used estimation activity. PHHE also...

Abstract A thermodynamic (equilibrium) model is developed for the BOF process. The predictions of this show trend reactions when process considered to be at equilibrium. In case a real process, however, some tuning and adaptation becomes necessary make more accurate predictions. dynamic in which kinetics scrap dissolution also incorporated. comparison results equilibrium models (made with parameters) reveals that mixing prime factor can alter course reaction any particular instant. Mixing...

The viscosities of the industrial basic oxygen furnace (BOF) slag with varying compositions MgO, Al2O3, TiO2, and MnO were continuously measured at a temperature range between 1400 1700 °C using rotating bob method. Three characteristic temperatures for melting behavior BOF investigated high-temperature microscope. solid fraction was calculated by FactSage 7.2 FTOxid database. General observations from experimental data show that increase in MgO tends to viscosity. However, decrease...

The present study compares the temperature distribution within cylindrical samples heated in microwave furnace with those achieved radiatively-heated (conventional) furnace. Using a two-dimensional finite difference approach thermal profiles were simulated for cylinders of varying radii (0.65, 6.5, and 65 cm) physical properties. influence susceptor-assisted heating was also modeled same. simulation results reveal differences behavior microwaves. efficacy depends on sample size its conductivity.

The phosphorus partition between the unkilled liquid crude steel and high basicity (CaO/SiO 2 = 4.2), basic oxygen furnace (BOF) slags with varying compositions of Al O 3 , TiO MnO is studied at temperatures 1600 1650 °C. tests are conducted in both “slag‐to‐metal” “metal‐to‐slag” directions for durations 30 60 min. measured results compared values reported literature found to be good agreement some them. It investigation high‐basicity BOF slags, that MnO, lower partition. increases...

An improved computational model to describe the decarburization process in basic oxygen furnaces for steel making is presented this work. A dynamic was thus developed calculate rate and its breakup as a contribution coming from hot-spot zone (under jet impact) emulsion (by droplet slag reactions). In work, multiple interconnected equilibrium/adiabatic stoichiometric-reactor-based approaches are used overall steel-making process. The macroprogramming facility of FactSage™ software understand...

Abstract Twin roll casting is a process used to produce thin strips of metals by continuously pouring melt on rotating rolls. In order make the more productive and economical, high speed recommended. The numerical simulation high-speed twin performed analyzing fluid flow, heat transfer, solidification behavior Al–Cu hypo-eutectic alloy. flow field, temperature, liquid fraction distribution, cooling rate are analyzed solving governing transport equations continuity, momentum, energy,...

The present study was aimed at evaluating the Hepatoprotective activity of poly-herbal formulation against paracetamol intoxicated Wistar-albino rats in albino rats. crushed and dried under shade. material macerated by using ethanol distilled water (w/v 1:3) ratio taken. powder set for 15 days with shaking different time intervals, after concentrated to dry mass a vacuum drier. hepatoprotective tested on histopathological studies, Total Bilirubin, Direct SGPT, SGOT. liver section...

This work presents the development and validation of a static thermochemical model for predicting process parameters in MIDREX shaft furnace, method used producing direct reduced iron from lump ore pellets. Industrial plant data is to validate model. Furthermore, utilized analyze based on different parameters. Genetic algorithm (GA) estimate critical (like reaction factors extent reactions) with industrial data. Further investigations are conducted assess possibility replacing reformer gas...

Abstract For see ChemInform in Full Text.