Browsing Mechanical Engineering (Scholarly Articles) by Title
Now showing items 5-24 of 176
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Categorization of tars from fast pyrolysis of pure lignocellulosic compounds at high temperature
(Elsevier, 2019-04-11)This study presents how the yields of different tar compounds from pure lignocellulosic compounds respond to the change in temperature and residence time. Experiments were carried out with a drop tube furnace in the ... -
A CFD investigation of a variable-pitch vertical axis hydrokinetic turbine with incorporated flow acceleration
(Springer, 2019-02-18)This paper presents the numerical modelling of a novel vertical axis tidal turbine that incorporates localised flow acceleration and variable-pitch blades. The focus is to develop a computational fluid dynamics model of a ... -
Characterisation of LCF performance of X100 weld-joints: Mechanistic yield strength modelling, finite element analyses and DIC testing
(Elsevier, 2021-03-26)This paper is concerned with the effect of welding on the fatigue behaviour of X100 material for steel catenary risers. The methodology includes both modelling and experimental characterisation. The modelling combines (i) ... -
Characterization and reactivity of charcoal from high temperature pyrolysis (800–1600 °C)
(Elsevier, 2018-09-22)This study presents the effect of wood origin and heat treatment temperature on the CO2 reactivity, nanostructure and carbon chemistry of chars prepared at 800, 1200, and 1600 °C in slow pyrolysis reactors. The ... -
Characterization and reactivity of soot from fast pyrolysis of lignocellulosic compounds and monolignols
(Elsevier, 2018-02-06)This study presents the effect of lignocellulosic compounds and monolignols on the yield, nanostructure and reactivity of soot generated at 1250 C in a drop tube furnace. The structure of soot was characterized by electron ... -
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 ... -
Characterization of renewable reductants and charcoal-based pellets for the use in ferroalloy industries
(Elsevier, 2018-11-05)This study investigates the effect of high-temperature pyrolysis and post-treatment processes on spruce and oak charcoal yields and CO2 reactivity in a slow pyrolysis reactor. Post-treatment processes such as co-pyrolysis ... -
Characterization of woodstove briquettes from torrefied biomass and coal
(Elsevier, 2019-01-18)Using waste biomass materials offers the potential to reduce the greenhouse gas emissions from fossil fuels. Torrefaction is very useful for improving the fuel properties of biomass in order to better match those of coal. ... -
A collaborative knowledge management tool for product innovation management
(Inderscience Publishers, 2003)Contemporary business systems are becoming increasingly competitive. Faster and smarter technology, although imperative, is not enough to survive in dynamic environments. Modern enterprises must adopt a deliberate and ... -
A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers
(Elsevier, 2016-10-20)This paper presents a combined experimental and computational methodology for fretting wear-fatigue prediction of pressure armour wire in flexible marine risers. Fretting wear, friction and fatigue parameters of pressure ... -
A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers
(Elsevier, 2016-10-20)This paper presents a combined experimental and computational methodology for fretting wear-fatigue prediction of pressure armour wire in flexible marine risers. Fretting wear, friction and fatigue parameters of pressure ... -
A combined XFEM and cohesive zone model for composite laminate microcracking and permeability
(Elsevier ScienceDirect, 2014-10-07)A novel computational methodology for predicting three-dimensional microcracking and permeability in composite laminates is presented, The methodology simulates microcrack initiation and propagation using the extended ... -
Comparing how entrepreneurs and managers represent the elements of the business model canvas
(Elsevier, 2018-03-03)This paper uses self-efficacy to compare how entrepreneurs and managers represent the nine elements of the business model canvas (BMC; Osterwalder, 2004). A six-item efficacy scale was developed to measure each element. ... -
Comparison of high temperature chars of wheat straw and rice husk with respect to chemistry, morphology and reactivity
(Elsevier, 2016-03-02)Fast pyrolysis of wheat straw and rice husk was carried out in an entrained flow reactor at high-temperatures (1000–1500) °C. The collected char was analyzed using X-ray diffractometry, N2-adsorption, scanning electron ... -
A comparison of two quasi-static computational models for assessment of intra-myocardial injection as a therapeutic strategy for heart failure
(Wiley, 2019-05-06)Myocardial infarction, or heart attack, is the leading cause of mortality globally. Although the treatment of myocardial infarct has improved significantly, scar tissue that persists can often lead to increased stress and ... -
Computational modelling of dynamic recrystallisation of Ni-based superalloy during linear friction welding
(Springer, 2022-01-12)Linear friction welding (LFW) is an advanced joining technology used for manufacturing and repairing complex assemblies like blade integrated disks (blisks) of aeroengines. This paper presents an integrated multiphysics ... -
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 ... -
Computational study on the effect of contact geometry on fretting behaviour
(Elsevier ScienceDirect, 2011-07-23)A key challenge in the design of engineering couplings and contacting components relates to the development of an understanding of the comparative performance of contrasting contact geometries for a given application, ... -
Cosmic sounds: A game to support phonological awareness skills for children with dyslexia
(2022)Studies show that reduced literacy skills can negatively influence a child¿s self-esteem and future career opportunities. Literacy is significantly affected when problems exist understanding the phonological component or ...