Rigorous analysis of the determinants of volumetric mass transfer coefficient (kLa) and its accurate forecasting are of vital importance for effectively designing and operating stirred reactors. Majority of the available literature is limited to systems with low solids concentration, while there has always been a need to investigate the gas-liquid hydrodynamics in tanks handling ...

Introduction Mixing in stirred tanks is driven by the impeller-generated convective motion at larger scales, by turbulent transfer at smaller scales and diffusion at molecular scales. Smith reported that the lack of a fundamental understanding of the processes in stirred vessels leads to losses in the order of US$10 billion per year due to non-optimal energy utilisation. Thus, there is a need t...

Today, increasing energy costs require effective processes, especially in chemical and pharmaceutical industries. Particularly, energy-intensive mixing processes offer high potential for optimization. Despite great efforts of research mixing of liquid-liquid components is not completely predictable. To construct mixing systems, empiricism is used rather than basic knowledge. Local mixing qualit...

Prostaglandin I2 (prostacyclin, PGI2), a substance synthesized in the wall of blood vessels, has been previously shown to inhibit the aggregation of platelets in stirred platelet-rich plasma. We used a method in which segments of deendothelialized rabbit aorta are perfused at arterial shear rates with human blood and found that both platelet adhesion and thrombus formation on subendothelium was...

Prostaglandin I2 (prostacyclin, PGI2), a subadhesion and thrombus formation on subenstance synthesized in the wall of blood dothelium was inhibited in blood containing vessels, has been previously shown to inhibit 10 nM PGI2. PGI2 appears to reduce adhesion the aggregation of platelets in Stirred plateby inhibiting platelet spreading. These findlet-rich plasma. We used a method in which ings su...

Prostaglandin I2 (prostacyclin, PGI2), a subadhesion and thrombus formation on subenstance synthesized in the wall of blood dothelium was inhibited in blood containing vessels, has been previously shown to inhibit 10 nM PGI2. PGI2 appears to reduce adhesion the aggregation of platelets in Stirred plateby inhibiting platelet spreading. These findlet-rich plasma. We used a method in which ings su...

Gas dispersion in non-Newtonian fluids is encountered a broad range of chemical, biochemical, and food industries. Mechanically agitated vessels are commonly employed these processes because they promote high degree contact between the phases. However, mixing challenging task that requires comprehensive knowledge flow to accurately design stirred vessels. Therefore, this review presents develop...