abstracthydroforming process is a deep stretching process only with the difference that a fluid is used instead of the mandrel. this paper investigates the hydroforming process of non-cylindrical and non-spherical geometries using finite element analysis software to calculate the influences of effective process parameters such as the coefficient of friction between the surfaces and the pressure...

Fraunhofer EMFT’s research and manufacturing portfolio includes piezoelectrically actuated silicon micro diaphragm pumps with passive flap valves. Research development in the field of microfluidics have been dedicated for many years to use micropumps generating positive negative pressures, as well delivering various media. However, some applications, only small amounts fluid need be pumped, com...

Multistage fracturing in horizontal well has become one of the important techniques for efficient development low-permeability sandstone reservoirs. In multistage hydraulic fractured wells (MHFHWs), depth fluid invasion into formation is a key parameter evaluating imbibition enhancement after fracturing. However, few studies have been conducted on fluids combining experiments and mathematical m...

Multistage hydraulic fracturing is one of the most prevalent approaches for shale reservoir development. Due to complexity constructing environments experiments, numerical simulation a vital method study flow behavior under conditions. In this paper, we propose model that considers multistage fractured horizontal well with hilly-terrain trajectory in presence natural fractures. The was construc...

ABSTRACT A platform is proposed for the extraction of nutraceuticals ingredients from natural products, which includes the following three processes: 1. Single-stage extraction using scCO2 (supercritical CO2). 2. Single-stage extraction using of high-pressure hot water and /or hot water with scCO2. 3. Multistage extraction, with counter-currently contact between scCO2 and H2O with the raw mater...