The use of agroforestry residues for energy purposes has long been a reality in Brazil. About 84.8% the produced electricity comes from renewable resources; vegetable biomass contributes 9.1% to this total. This percentage potential increase if Amazon are processed be used as fuel. major difficulty scenario is lack available information on properties, mainly HHVs types. Considering that there i...

A general feature of both isochemical and thermochemical studies of mantle convection is that horizontal plume velocities tend to be smaller than typical convective velocities, however, it is not clear which system leads to a greater fixity of mantle plumes. We perform twoand three-dimensional numerical calculations and compare both thermochemical and isochemical cases with similar convective v...

Various synthesis and rehydrogenation processes of lithium hydride (LiH) and magnesium amide (Mg(NH₂)₂) system with 8:3 molar ratio are investigated to understand the kinetic factors and effectively utilize the essential hydrogen desorption properties. For the hydrogen desorption with a solid-solid reaction, it is expected that the kinetic properties become worse by the sintering and phase sepa...

Solar photochemical means of splitting water (artificial photosynthesis) to generate hydrogen is emerging as a viable process. The solar thermochemical route also promises to be an attractive means of achieving this objective. In this paper we present different types of thermochemical cycles that one can use for the purpose. These include the low-temperature multistep process as well as the hig...

A Monte Carlo–probability density function (pdf) method based on a Lagrangian particle technique to calculate the transported pdf of the thermochemical (scalar) properties has been implemented in the finite volume code KIVA-3 to model three-dimensional premixed transient combustion in a two-stroke engine. The main advantage of the pdf method is that chemical reactions in turbulent flows can be ...

The main objective of the present work was to synthesis polyamide 6 through anionic polymerization of ε-caprolactam in an internal mixer. The reaction time and the rheological properties of samples during the polymerization were studied. The samples were characterized by Thermo Gravimetry Analysis (TGA), Differential Scanning Calorimeter (DSC) and FT-IR spectrometer. The melt flow behavior and ...