Three heat recovery cycles are studied to recover the waste from exhaust gas outlet of a glass-melting furnace. To determine viability and potential dangers based on techno-economic aspects, three fundamental for UK glass melting furnaces examined. The parametric thermodynamic study reveals effects key parameters: condenser temperature ORC cycle, pressure ratio sCO2 flash Kalina cycle. paramete...

This paper mainly emphasizes development of a multifluid blast furnace model and its application to simulate several innovative ironmaking operations. At first, the development process and framework of the model are briefly introduced. Then, model simulations on hydrogen bearer injection show that the enhancement of hydrogen reduction brings the improvement of furnace performance, especially fo...

Gas permeability in a blast furnace is directly influenced by the burden profile, which is the result of the charging angle collocation. An obviously increment in both iron-making productivity and furnace campaign life will be observed in a high heat utilization furnace with uniform gas permeability. An online burden profile measuring device without gas leakage risks and heavy maintaining load ...

We have investigated a phase transition of a long-range RKKY Ising spin glass DyxY1−xRu2Si2 by means of the dc and the ac magnetization measurements. The static nonlinear susceptibility χ2 exhibits a divergent behavior toward Tg = 1.925 K with the exponent of γ = 1.08. The characteristic relaxation time τ obtained from the ac magnetization measurements also diverges to the same Tg with the expo...

Figure S1 shows a schematic of our furnace setup. See " Methods " section in main text for details. mass flow controllers supply gases plasma generator tube furnace pressure gauge access door exhaust rotary pump Figure S1: Experimental setup for sample processing.

We fabricated thin ®lm transistors in polycrystalline silicon on steel substrates. The polycrystalline silicon ®lms were made by thermally annealing hydrogenated amorphous silicon precursor ®lms, which had been deposited on stainless steel coated with 0.5 lm thick 810°C-annealed SiO2. We employed annealing temperatures ranging from 600°C, which is the furnace annealing temperature limit for con...

The technological process for manufacturing seamless steel tubes in the Sisak Rolling Mill includes the heating of the charge for processing in the hearth-rotating furnace. Description of the furnace and its operation can be found in literature 1 . In the process currently applied for producing the tubes with the outer diameter of 168.3–356.6 mm the temperature is between 1280 and 1300 °C 2 . T...

The present paper reports a statistical analysis of the performance of the blast furnace number X at the Bhilai Steel Plant over a period of sixteen years with the special reference to the quality and consumption of sinter . The variation in basicity and consumption of sinter, for the blast furnace data considered , is wide. The range of data covers high level to almost nil amount of raw limest...

INTRODUCTION This report presents the results of two trials conducted with the Blast Furnace Granular Coal Injection System at Bethlehem Steel Corporation's Bums Harbor Plant. The trials were conducted using granulated and pulverized high volatile coal from Colorado. The first trial was conducted to quantify the effect that a high volatile western coal, Colorado Oxbow, has on the blast furnace ...

The difficulty in measuring load temperatures inside reheating gas furnaces may be circumvented by appropriate use of on-line numerical models. In this article we describe a model of pusher furnaces, used to reheat steel slabs. The model uses thermocouple measurements at fixed positions inside the furnace to calculate the temperature of the combustion products, and takes into account radiative ...