Browsing by Subject "Thermodynamics"
Now showing items 120 of 47

Analysis of multiplicity phenomena in longitudinal fins under multiboiling conditions
(2004)A numerical bifurcation analysis is carried out in order to determine the solution structure of longitudinal fins subject to multiboiling heat transfer mode. The thermal analysis can no longer be performed independently ... 
Analytical and numerical study of MHD natural convection in a horizontal shallow cavity with heat generation
(2014)A study is presented of twodimensional MHD natural convection flow in an internally heated horizontal shallow cavity in the presence of an external uniform vertical magnetic field. The main feature of the present flow is ... 
Buoyancyassisted mixed convection in a vertical channel with spatially periodic wall temperature
(2013)The influence of a spatially periodic temperature boundary condition on the laminar mixed convection in an upward flow between two vertical parallel plates is numerically studied. A detailed assessment is presented of the ... 
Calcium carbonate scaling in a plate heat exchanger in the presence of particles
(2003)Scale formation of CaCO3 in a plate heat exchanger is investigated in the presence of various types of added particles under isothermal conditions. The parameters examined include the degree of supersaturation, the type ... 
Conductive heat transfer in a rarefied polyatomic gas confined between coaxial cylinders
(2014)The conductive heat transfer through rarefied gases composed by rigid rotators and confined between coaxially placed cylinders maintained at different temperatures is investigated on the basis of the Holway and Rykov kinetic ... 
Coupled thermodynamic/kinetic analysis of diffusional transformations during laser hardening and laser welding
(2001)Several important industrial material processes, such as welding and surface treatments with high energy beams, incorporate rapid thermal cycles characterized by high heating/cooling rates and short dwell times. Computational ... 
Direct numerical simulation of a heat removal configuration for fusion blankets
(2007)A series of direct numerical simulations (DNS) are performed to study the natural convection heat transfer between concentric cylinders at several Rayleigh and Hartmann numbers. The buoyant flow is driven by the temperature ... 
Effect of magnetic field on nearwall coherent structures and heat transfer in magnetohydrodynamic turbulent channel flow of low Prandtl number fluids
(2011)A numerical study is carried out of the magnetic field effects on the coherent structures and the associated heat transfer in a turbulent channel flow with constant temperature at the bottom (cold) and top (hot) walls. ... 
Effect of wall roughness on shear viscosity and diffusion in nanochannels
(2010)The effect of wall roughness on liquid argon shear viscosity and diffusion coefficient in nanochannels is studied by nonequilibrium molecular dynamics. Diffusion coefficient results are presented in terms of average values ... 
Effects of a 70% biodiesel blend on the fuel injection system operation during steadystate and transient performance of a common rail diesel engine
(2012)The results of steady state and transient engine bench tests of a 2.01 commonrail passenger car diesel engine fuelled by B70 biodiesel blend are compared with the corresponding results of baseline tests with standard EN ... 
Exergetic potential of fuels: The case of a SOFCbased power plant
(2004)The method of exergy analysis is presented for a SOFC power plant involving external steam reforming and fed by methane and ethanol. The optimal operation parameters of the integrated SOFC plant are specified after minimizing ... 
Experimental Investigation of the Energy Needs for a Conventionally and an InfraredHeated Greenhouse
(2012)Infrared (IR) heating as alternative to forced air heating has been studied experimentally for 70 days in two identical, smallscale, experimental greenhouses. The two heating options were implemented with four IR electric ... 
Film cooling predictions of simple and compound angle injection from one and two staggered rows
(2001)Typical filmcooling configurations of flat plates from one and two staggered rows of simple and compound angle injection holes are investigated using a threedimensional finite volume method and a multiblock technique, ... 
Full and part load exergetic analysis of a hybrid micro gas turbine fuel cell system based on existing components
(2012)The paper deals with the examination of a hybrid system consisting of a precommercially available high temperature solid oxide fuel cell and an existing recuperated microturbine. The irreversibilities and thermodynamic ... 
How wall properties control diffusion in grooved nanochannels: a molecular dynamics study
(2013)The effect of a geometricallyrough wall, amplified by its degree of wettability and stiffness on diffusion coefficient in cases of fluid flow in nanochannels is studied by nonequilibrium molecular dynamics. Diffusion ... 
Hydrogen production via aqueous  Phase glucose reforming: A thermodynamic approach
(2009)In the present work the thermodynamic analysis of aqueous  phase glucose reforming reaction has been studied. For the investigation purposes the temperature range of 0  100°C and atmospheric total pressure have been ... 
Investigation of the effect of biodiesel blends on the performance of a fuel additiveassisted diesel filter system
(2014)The results of fullscale regeneration tests with a unit silicon carbide diesel particulate filter installed on a singlecylinder diesel engine are presented. Two sets of transient regeneration experiments, one for each ... 
Laminar Free Convection in a Square Enclosure Driven by the Lorentz Force
(2010)A numerical study is presented of laminar free convection flow driven by magnetic forces. An external magnetic field with one spatially varying component is applied to an electrically conducting fluid in a square enclosure. ... 
Large eddy simulation of turbulent channel flow with transverse roughness elements on one wall
(2014)This study examines the feasibility of large eddy simulation for predicting turbulent channel flows with twodimensional roughness elements of square, circular and triangular shapes transversely placed on the bottom wall. ... 
Magnetohydrodynamic natural convection in a vertical cylindrical cavity with sinusoidal upper wall temperature
(2009)A series of numerical simulations were performed in order to study liquid metal MHD natural convection in a vertical cylindrical container with a sinusoidal temperature distribution at the upper wall and the other surfaces ...