Production of single cell protein (SCP) from natural gas in a one liter bubble column reactor and optimization of the process parameters were investigated. The medium specifications, nitrogen sources, initial inoculum volume, and inlet ratio of gas to air were considered as process parameters to be optimized. The optimum condition for highest biomass production in which the maximum quantity of ...

In the current research, numerical analysis was used to investigate flow behavior through axial jet-pump with various mixing chamber configurations (straight pipe and straight pipe-diffuser-straight pipe) in presence of inlet swirling its influence on pump performance. The effects introducing suction motive line, are numerically investigated. optimum swirl angle is found be 45o which yields max...

In this study, a CFD simulation analysis was used to predict the characteristics of swirl flow as reference optimize new design microbubble generator. To examine impact inlet design, three different configurations type were applied, namely single inlet, double and tangent-circle inlet. The performance generator characterized in terms velocity, pressure drop radial position, distribution along c...

This protocol describes a simple approach for adhesive-tape-based sampling of tomato and other fresh produce surfaces, followed by on-tape fluorescence in situ hybridization (FISH) for rapid culture-independent detection of Salmonella spp. Cell-charged tapes can also be placed face-down on selective agar for solid-phase enrichment prior to detection. Alternatively, low-volume liquid enrichments...

A number of research studies have employed a wide variety of mesh styles and levels of grid convergence to assess velocity fields and particle deposition patterns in models of branching biological systems. Generating structured meshes based on hexahedral elements requires significant time and effort; however, these meshes are often associated with high quality solutions. Unstructured meshes tha...

Multiphase flows in microchannels are encountered in a variety of microfluidic applications. Two-phase microchannel heat sinks leverage the latent heat of vaporization to offer an efficient method of dissipating large heat fluxes in a compact device. In microscale methanol-based fuel cells, the chemical reactions produce a twophase flow of methanol solution and carbon dioxide gas. Differences i...

Part I of this paper presented a systematic derivation the Stokes–Dirac structure underlying port-Hamiltonian model ideal fluid flow on Riemannian manifolds. Starting from group diffeomorphisms as configuration space for fluid, is derived by Poisson reduction and then augmented boundary ports distributed ports. The additional have been shown to appear naturally surface terms in pairings dual ma...

Fine particles misclassification in the underflow (UF) of grinding-classification hydrocyclones might result ore over-grinding, leading to both reduced ball mill throughput and metal recovery. In current research, a W-shaped hydrocyclone is proposed, efficiently decrease fine UF. The effects following parameters (including cross-effects) on classification performance were studied experimentally...

Performance of a gas turbine mainly depends on the inlet air temperature. The power output of a gas turbine depends on the flow of mass through it. This is precisely the reason why on hot days, when air is less dense, power output falls. The objective here is to assess the advanced systems applied in reducing the gas turbine intake air temperature and examine the merits from integration of the ...