The primary goal of this work is to use CFD assessment simulating framework anticipate the impact injecting air flowing mal-distribution on heat exchanger architecture and thermal flow characteristics. Using (computational fluid dynamics) simulation-studies, determine intake unequal distribution or complete redesign as well high - temperature hydraulic performing ability HEX (heat exchangers). ...

increase of environmental pollution and restricted emission legislations have forced companies to produce automobiles with lower air pollutants. in this respect, discharge of blowby gases into the environment has been prohibited and their recirculation into the combustion chamber is proposed as an alternative solution. in addition, using egr technique to control and reduce nitrogen oxides in in...

The preservation effects of UW solution on renal hemodynamics and microvascular systems were studied in canine kidney autografts. In 72-hr UW-preserved kidneys, the microvessels of both cortex and medulla were completely visualized with silicon rubber compound 1 hr after reperfusion. Histology also showed extremely well-preserved arterioglomerular and tubular systems. These results were correla...

AIM To examine the current physician supply in western countries, Central and Eastern Europe (CEE), and the Newly Independent States (NIS) of the former Soviet Union. To assess the current management of physician resources in these regions and the potential for their future management. METHODS Description and analysis of current physician to population ratios, graduating physician to populati...

Mitigation of ‘hot spots’ in MEMS employing in–situ microchannel systems requires a comprehensive picture of the maldistribution of the working fluid and uniformity of cooling within the same. In this article, detailed simulations employing parallel micro channel systems with specialized manifold-channel configurations i.e. U, I and Z have been performed. EulerianLagrangian Discrete Phase Model...

The flow distribution in a silicon microchannel heat sink was studied using Infrared MicroParticle Image Velocimetry (IR PIV). The microchannel test piece consisted of seventy-six 110 m wide  371 m deep channels etched into a silicon substrate. Inlet and outlet manifolds, also etched into the substrate, were fed by 1.4 mm inner-diameter tubing ports. An image processing algorithm was develo...

Structured catalysts made by additive manufacturing offer the capability to seamlessly scale heterogeneous catalysis from lab production with minimal effort reengineer process at intermediate steps. They can be tailored meet certain demands for mixing, heat transfer and flow resistance, in order overcome maldistribution, hotspot or pressure drop issues, generally associated traditional packed b...