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Now showing items 11-20 of 124
One way of representing the size and shape of biomass particles in combustion modeling
(Elsevier, 2017-06-29)
This study aims to provide a geometrical description of biomass particles that can be used in combustion models. The particle size of wood and herbaceous biomass was compared using light microscope, 2D dynamic imaging, ...
Characterization of free radicals by electron spin resonance spectroscopy in biochars from pyrolysis at high heating rates and at high temperatures
(Elsevier, 2016-09-06)
The concentration and type of free radicals from the decay (termination stage) of pyrolysis at slow and fast heating rates and at high temperatures (above 1000°C) in biomass char have been studied. A room-temperature ...
The link between off campus work for students, reduced academic performance and increased mental health issues
(International Academy of Technology, Education and Development (IATED), 2018-03-05)
Despite the Free Fees Initiative (introduced in 1996) Irish students pay an annual registration fee of 3,000 (Cassells, 2016). This, in combination with rising accommodation and living costs, means that the annual cost ...
Effect of fast pyrolysis conditions on biomass solid residues at high temperatures
(Elsevier, 2015-12-03)
Fast pyrolysis of wood and straw was conducted in a drop tube furnace (DTF) and compared with corresponding data from a wire mesh reactor (WMR) to study the influence of temperature (1000–1400)°C, biomass origin (pinewood, ...
Influence of fast pyrolysis conditions on yield and structural transformation of biomass chars
(Elsevier, 2015-09-19)
Fast pyrolysis of biomass (wood, straw, rice husk) and its major components (cellulose, hemicellulose, lignin) was conducted in a wire mesh reactor. The aim of this study was to understand the influence of temperature ...
Effects of several types of biomass fuels on the yield, nanostructure and reactivity of soot from fast pyrolysis at high temperatures
(Elsevier, 2016-03-24)
This study presents the effect of biomass origin on the yield, nanostructure and reactivity of soot. Soot was produced from wood and herbaceous biomass pyrolysis at high heating rates and at temperatures of 1250 and 1400 ...
Secondary comminution of wood pellets in power plant and laboratory-scale mills
(Elsevier, 2017-03-14)
This study aims to determine the influence of mill type and pellet wood composition on particle size and shape of milled wood. The size and shape characteristics of pellets comminuted using power plant roller mills were ...
Simulation of turbulent flow in a rapid compression machine: Large Eddy Simulation and computationally efficient alternatives for the design of ignition delay time experiments
(Elsevier, 2018-07-05)
Rapid compression machines (RCMs) are widely used by the fuel research community to provide engine-relevant conditions to study ignition delay time (IDT), which is a crucial target for validating chemical kinetic mechanisms ...
Incompressible moving boundary flows with the finite volume particle method
(Elsevier, 2010-03-24)
Mesh-free methods offer the potential for greatly simplified modeling of flow with moving walls and phase interfaces. The finite volume particle method (FVPM) is a mesh-free technique based on interparticle fluxes which ...
Computational simulation of the relaxation of local stresses due to foreign object damage under cyclic loading
(2010)
In this study, the phenomenon of residual stress relaxation from foreign object damage (FOD) is numerically simulated using a hybrid explicit¿implicit finite-element method. The effects of cycle fatigue loadings on stress ...