A classification of heat exchangers with fluidization bulk material for use in enterprises the chemical, mining, construction, food, metallurgical and processing industries has been developed. critical review most characteristic designs a fluidized bed, proposed by scientists, designers inventors leading countries world, carried out. The are analyzed depending on method fluidization, role excha...

This paper proposes a Micro-electro-mechanical (MEMS) capacitive pressure sensor that relies on the movable electrode displaced like a flat plate equal to the maximum center deflection of diaphragm. The diaphragm, movable electrode and mechanical coupling are made of polysilicon, gold and Si3N4, respectively. The fixed electrode is gold and the substrate is Pyrex glass. This proposed method inc...

in this paper, a three-dimensional finite element model has been developed to simulate the laser-tig hybrid welding (hlaw) of stainless steel 1.4418 with thickness of 4 mm. transient temperature profile and dimensions of the fusion zone and heat affected zone (haz) during welding process are calculatedusing finite element method (fem) and were solved in the abaqus/standard software.the heat sou...

A total of 48 experiments were conducted to investigate the impact slit weir dimensions and locations on maximum scour depth area created upstream. The model was a 110 mm opening, it installed at end working section in laboratory flume. flume 10.0 m long, 30 cm wide, deep, almost middle. It includes 2 with mobile bed thickness. In bed, two types nonuniform sand (with geometric standard deviatio...

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