We propose a new definition of a fractional-order Sumudu transform for fractional differentiable functions. In the development of the definition we use fractional analysis based on the modified Rieman...
This paper presents an integrated reaction engineering based mathematical model for clinker formation in cement industry. Separate models for pre-heater, calciner, rotary kiln and cooler were initiall...
The explosibility of Victorian brown coal dusts has been investigated in a wide range of equipment, including the 1.2 dm3 Hartmann bomb and the 201 spherical bomb. The Hartmann bomb seriously underest...
The dynamics of burning of wood charcoal in an air stream is examined both experimentally and theoretically. To simplify the theory, an experimental arrangement approximating a one dimensional phenome...
The devolatilization behaviour of finely-ground (< 0.2 mm) Loy Yang brown coal was investigated under rapid heating conditions using a small-scale fluidized-bed pyrolyser. The pyrolyser operated conti...
The combustion or gasification of coal may be thought of as occurring in several steps. First, the coal is heated at high rates, and rapid devolatilization occurs. The volatiles then react in the gas ...
The combustion of char particles including the effects of external mass transfer, surface reaction, pore diffusion, and pore growth is analyzed theoretically. A random pore model is used to relate por...
Experimental data of the rates of extinguishment of wood charcoal combustion are presented for various water application rates and air flow conditions. The experimental configuration consists of burni...
Abstract The rates of oxidation of tiny particles (initial diam. ∼115 μm) of a nonporous graphite have been measured in beds of silica sand fluidized by different mixtures of O2 + N2 at 1 atm. Tempera...
Abstract The available data on intrinsic kinetic parameters of wood char combustion is limited in the literature. The intrinsic reactivity of porous char particles reflects the variance in the pore st...
Abstract The ash layer formed at the burning surface is found to play a major role in establishing the combustion characteristics of wood charcoal. The dynamics of wood charcoal combustion are examine...
Abstract Modeling of coal-reaction processes has received significant emphasis over the past decade. Yet, model development has not reached the point where significant use is made in process developme...
Abstract Measurements have been made over the temperature range 630 to 1812 °K of the combustion rates and physical structure of sized fractions (89, 49 and 22 μm) of a brown coal char. Above 900 °K t...
Abstract Computational fluid dynamics (cfd) has proven to be a powerful tool in the study of many complex flow systems. The paper presents an approach to applying cfd to dust deflagrations. The method...
Abstract Combustion rate measurements of Loy Yang brown coal char particles (88 μm median size) over the temperature range 940–1420 K yielded a chemical rate coefficient Rc, expressed as R c = 12.6 ex...
Abstract Coal is the most abundant fossil fuel and is widely used as an energy source for combustion and gasification. Both experimental methods and computational tools are required for the developmen...
Abstract A new kinetic model for the combustion reactivity of char from pulverized coal was developed by means of dimensional analysis using the Rayleigh method. This model was published in Fuel 88 (2...
Abstract A dynamic model of a coal fired boiler is proposed to predict the formation of NO x during plant operation. Since evaluation of the model at hand should only take few minutes, computationally...
A two-dimensional, two-phase combustion model of pulverized coal char is presented in this paper. It is of particular importance to reveal the controlling mechanisms, through prediction of the diffusi...
A preliminary analysis has been conducted of the performance of a Chemical Looping system with Oxygen Uncoupling (CLOU) with copper oxide as the oxygen carrier and coal approximated by carbon as the f...