Pressure driven liquid flow through rectangular cross-section microchannels is investigated experimentally. Polydimethylsiloxane microchannels are fabricated using soft lithography. Pressure drop data are used to characterize the friction factor over a range of aspect ratios from 0.13 to 0.76 and Reynolds number from 1 to 35 with distilled water as working fluid. Results are compared with the g...

Packed bed cultivation systems have potential for widespread application in solid-state cultivation (SSC), but they are poorly characterized. The effects of particle size and substrate loading on the growth of Rhizopus oligosporus on sago-beads in packed bed bioreactors were investigated. Pressure drop and protein were monitored as indicators of fungal growth in cultivations performed in a larg...

This study aims at the calculation of pressure drop from simulation internal nanofluid flow in a new and long stainless pipe (1.4 m 0.01 diameter). Calculations were made numeric simulations which based on theoretical models experimental proprieties three nanofluids: graphene nanodiscs with water, titanium oxide nanospheres water iron water. Different concentrations considered each kind nanoflu...

In this article, the second method of determination theoretical and actual working volume a hydraulic motor is described. The proposed new based on characteristics effective absorbency motor. has been defined as ratio flow rate in to rotational speed motor’s shaft. It shown that nonlinear function pressure drop chambers. Furthermore, it proven third degree chamber. should be taken assess mechan...

Two-phase frictional pressure drop data were obtained for condensation of carbon dioxide in single horizontal micro tube of inner diameter ranged from 0.6 mm up to 1.6 mm over mass flow rates from 2.5*10 to 17*10 kg/s and vapor qualities from 0.0 to 1.0. The inlet condensing pressure is changed from 33.5 to 45 bars. The saturation temperature ranged from -1.5 C up to 10 C. These data have then ...