Tetraiodine nonoxide (I4O9) has been synthesized using a dry approach that combines elemental oxygen and iodine without the introduction of hydrated species. The synthesis approach inhibits the topochemical effect promoting rapid hydration when exposed to the relative humidity of ambient air. This stable, amorphous, nano-particle material was analyzed using differential scanning calorimetry (DS...

It is essential to increase the efficiency of the commercially available combustion engines because of the limitations in fossil energy resources and environmental pollution Also the emission standards are a challenging aspect. If one succeeds in designing the combustion process, in particular the chemical reactions, it would be feasible to partly replace complex experiments by computer simulat...

The goal of this project is to provide a compact and efficient fluid power source for mobile applications (10 kW-500 kW), including on-road vehicles and off-road heavy machineries. This is achieved through the development of a hydraulic free-piston engine (HFPE). Previously, a virtual crankshaft mechanism is proposed by the authors which regulates the pistons to follow any reference trajectorie...

THE CANADIAN JOURNAL OF CHEMICAL ENGINEERING 695 In the hierarchy of waste management techniques it is better to prevent harmful emissions from being generated in the first place. If this laudable objective is not practically feasible, the treatment of emissions to produce less harmful substances is worthy of detailed consideration. For such waste treatment processes, the most technically and e...

A feedback control strategy is applied to enhance the performance of a laboratory-scale pulsed combustor operating near the lower flammability limit. As with many combustion processes, at lean conditions, combustion instabilities develop which result in complex, lowfrequency fluctuations in fuel concentration and lead directly to misfire and flameout. The control strategy exploits the highly no...

The combustion behavior of typical components of MSW was examined with a thermal gravimetric analyzer (TGA). The experiments were done over the temperature range of room temperature to 1000 degrees C at a heating rate of 10 degrees C/min and in an oxidizing atmosphere. The results indicated that the entire weight loss process of each typical component of MSW consists of one to three distinct co...

where Ea is an activation energy, R is the gas constant, and A is a constant. This equation means that the reaction rate becomes larger as the temperature becomes higher. By the way, for promoting the reaction, it is necessary to transfer the translation energy efficiently to the reaction field. One report says that the deviation of calculated results from experimental results becomes greater a...

Numerical study of two dimensional supersonic hydrogen-air mixing layer is performed to investigate the effect of turbulence and chemical additive on ignition distance. Chemical reaction is treated using detail kinetics. Advection upstream splitting method is used to calculate the fluxes and one equation turbulence model is chosen here to simulate the considered problem. Hydrogen peroxide is us...

Cubic delta-tantalum nitride (δ-TaN) nanoparticles were selectively prepared using a K2TaF7 + (5 + k) NaN3 + kNH4F reactive mixture (k being the number of moles of NH4F) via a combustion process under a nitrogen pressure of 2.0 MPa. The combustion temperature, when plotted as a function of the number of moles of NH4F used, was in the range of 850°C to 1,170°C. X-ray diffraction patterns reveale...