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Abderrahmane Baïri

Bio: Abderrahmane Baïri is an academic researcher from University of Paris. The author has contributed to research in topics: Natural convection & Heat transfer. The author has an hindex of 21, co-authored 94 publications receiving 1470 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, a review of some results of research on natural convection in cavities is presented, which serves to underline the broad spectrum of scientific and engineering fields where the knowledge of natural convections in enclosures is advantageously applied.

213 citations

Journal ArticleDOI
25 Mar 2009-Wear
TL;DR: In this paper, a 3D analytical solution is proposed to determine the temperature and the partition coefficient of heat flux generated by friction in a pin-on-disc tribometer, without restriction on the rotational velocity of the disc.

98 citations

Journal ArticleDOI
TL;DR: In this article, the authors studied the steady-state natural convection taking place in rectangular cavities filled with air and provided the thermal and dynamic maps of the fluid for several geometrical configurations obtained while varying α, A and Δ T ǫ − T h − T c, respectively.

83 citations

Journal ArticleDOI
TL;DR: In this paper, the authors study the viability of large scale production of hydrogen via electrolysis, within the context of excess electricity loads in France (estimated at 22 TWh in 2007), that gives a daily hydrogen potential of 1314 T, from a total installed power of 5800 MW and average utilization ratios of 42.8%.

50 citations

Journal ArticleDOI
TL;DR: In this article, a linear superposition method is used to determine an analytical solution of the thermal constriction resistance adapted to random contacts, where the contact area is constituted of numerous disks which have different radii and are randomly distributed over a square or circular area.

49 citations


Cited by
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Journal ArticleDOI

[...]

08 Dec 2001-BMJ
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

33,785 citations

01 Jan 2016
TL;DR: The numerical heat transfer and fluid flow is universally compatible with any devices to read and is available in the authors' digital library an online access to it is set as public so you can get it instantly.
Abstract: Thank you for reading numerical heat transfer and fluid flow. Maybe you have knowledge that, people have search numerous times for their favorite books like this numerical heat transfer and fluid flow, but end up in infectious downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they cope with some malicious virus inside their computer. numerical heat transfer and fluid flow is available in our digital library an online access to it is set as public so you can get it instantly. Our books collection spans in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Merely said, the numerical heat transfer and fluid flow is universally compatible with any devices to read.

1,531 citations

01 Jan 2003
TL;DR: Shove as discussed by the authors investigated the evolution of these changes, as well as the social meaning of the practices themselves, concluding that routine consumption is controlled by conceptions of normality and profoundly shaped by cultural and economic forces, and that habits are not just changing, but are changing in ways that imply escalating and standardizing patterns of consumption.
Abstract: Over the past few generations, expectations of comfort, cleanliness and convenience have altered radically, but these dramatic changes have largely gone unnoticed. This intriguing book brings together the sociology of consumption and technology to investigate the evolution of these changes, as well the social meaning of the practices themselves. Homes, offices, domestic appliances and clothes play a crucial role in our lives, but not many of us question exactly how and why we perform so many daily rituals associated with them. Showers, heating, air-conditioning and clothes washing are simply accepted as part of our normal, everyday lives, but clearly this was not always the case. When did the daily shower become de rigueur? What effect has air conditioning had on the siesta at one time an integral part of Mediterranean life and culture? This book interrogates the meaning and supposed normality of these practices and draws disturbing conclusions. There is clear evidence supporting the view that routine consumption is controlled by conceptions of normality and profoundly shaped by cultural and economic forces. Shove maintains that habits are not just changing, but are changing in ways that imply escalating and standardizing patterns of consumption. This shrewd and engrossing analysis shows just how far the social meanings and practices of comfort, cleanliness and convenience have eluded us.

1,198 citations

Journal ArticleDOI
TL;DR: In this paper, the authors review the many possible technological pathways for recycling CO2 into fuels using renewable or nuclear energy, considering three stages: CO2 capture, H2O and CO2 dissociation, and fuel synthesis.
Abstract: To improve the sustainability of transportation, a major goal is the replacement of conventional petroleum-based fuels with more sustainable fuels that can be used in the existing infrastructure (fuel distribution and vehicles). While fossil-derived synthetic fuels (e.g. coal derived liquid fuels) and biofuels have received the most attention, similar hydrocarbons can be produced without using fossil fuels or biomass. Using renewable and/or nuclear energy, carbon dioxide and water can be recycled into liquid hydrocarbon fuels in non-biological processes which remove oxygen from CO2 and H2O (the reverse of fuel combustion). Capture of CO2 from the atmosphere would enable a closed-loop carbon-neutral fuel cycle. This article critically reviews the many possible technological pathways for recycling CO2 into fuels using renewable or nuclear energy, considering three stages—CO2 capture, H2O and CO2 dissociation, and fuel synthesis. Dissociation methods include thermolysis, thermochemical cycles, electrolysis, and photoelectrolysis of CO2 and/or H2O. High temperature co-electrolysis of H2O and CO2 makes very efficient use of electricity and heat (near-100% electricity-to-syngas efficiency), provides high reaction rates, and directly produces syngas (CO/H2 mixture) for use in conventional catalytic fuel synthesis reactors. Capturing CO2 from the atmosphere using a solid sorbent, electrolyzing H2O and CO2 in solid oxide electrolysis cells to yield syngas, and converting the syngas to gasoline or diesel by Fischer–Tropsch synthesis is identified as one of the most promising, feasible routes. An analysis of the energy balance and economics of this CO2 recycling process is presented. We estimate that the full system can feasibly operate at 70% electricity-to-liquid fuel efficiency (higher heating value basis) and the price of electricity needed to produce synthetic gasoline at U.S.D$ 2/gal ($ 0.53/L) is 2–3 U.S. cents/kWh. For $ 3/gal ($ 0.78/L) gasoline, electricity at 4–5 cents/kWh is needed. In some regions that have inexpensive renewable electricity, such as Iceland, fuel production may already be economical. The dominant costs of the process are the electricity cost and the capital cost of the electrolyzer, and this capital cost is significantly increased when operating intermittently (on renewable power sources such as solar and wind). The potential of this CO2 recycling process is assessed, in terms of what technological progress is needed to achieve large-scale, economically competitive production of sustainable fuels by this method.

865 citations

Journal ArticleDOI
TL;DR: In this article, the effect of inclination angle on convection heat transfer and fluid flow in a two-dimensional enclosure filled with Cu-nanofluid has been analyzed numerically.

460 citations