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Numerical Modeling of Stagnation Flows over Porous Catalytic Surfaces

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ISBN: 9783731504344 Year: Pages: XII, 204 p. DOI: 10.5445/KSP/1000049629 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:00
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In this book, stagnation flows on a catalytic porous plate is modeled one-dimensionally coupled with multi-step surface reaction mechanisms and molecular transport (diffusion and conduction) in the flow field and in the porous catalyst. Internal and external mass transfer limitations as well as possible reaction routes in the catalyst are investigated for CO oxidation, WGS reaction, partial and steam reforming of methane over Rh/Al?O?.

Feature Papers

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ISBN: 9783038420705 9783038420712 Year: Pages: X, 392 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 09:20:18
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This special issue contains the first papers of Processes and is intended to highlight a diverse set of topics related to process technology for the chemical, materials, biochemical, pharmaceutical and biomedical industries. To enhance the impact of these industries on society, process innovation that allows large-scale manufacturing is essential for both established and emerging technologies. The scope of this special issue includes, but is not limited to: chemical and biochemical reaction processes: mixing, fluid processing and heat transfer systems; mass transfer, separation and purification processes; integrated process design and scale-up; and process modeling, simulation, optimization and control.

Carbonates

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ISBN: 9783038977223 Year: Pages: 146 DOI: 10.3390/books978-3-03897-723-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Science (General)
Added to DOAB on : 2019-04-05 10:34:31
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This Special Issue is aimed at presenting the state of the art of the multidisciplinary science concerning all aspects of volcanic plumes, of relevance to the volcanology, climatology, atmospheric science, and remote sensing communities.

Recent Advances in Water and Wastewater Treatment with Emphasis in Membrane Treatment Operations

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ISBN: 9783038976240 Year: Pages: 230 DOI: 10.3390/books978-3-03897-625-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Engineering --- General and Civil Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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The present Special Issue brings together recent research findings from renowned scientists in the field of water treatment and assembled contributions on advanced technologies applied to the treatment of wastewater and drinking water, with emphasis on novel membrane treatment technologies. 12 research contributions have highlighted various processes and technologies, which can achieve effective treatment and purification of wastewater and of drinking water, aiming (occasionally) for water reuse. The main topics which are analyzed are the use of novel type membranes in bioreactors, the use of modified membranes, for example using vacuum membrane distillation, the fouling of membranes, the problem of arsenic, antimony and chromium contamination in groundwaters and its removal and the use of novel technologies for more efficient ozonation.

Selected Problems in Fluid Flow and Heat Transfer

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ISBN: 9783039214273 / 9783039214280 Year: Pages: 460 DOI: 10.3390/books978-3-03921-428-0 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Fluid flow and heat transfer processes play an important role in many areas of science and engineering, from the planetary scale (e.g., influencing weather and climate) to the microscopic scales of enhancing heat transfer by the use of nanofluids; understood in the broadest possible sense, they also underpin the performance of many energy systems. This topical Special Issue of Energies is dedicated to the recent advances in this very broad field. This book will be of interest to readers not only in the fields of mechanical, aerospace, chemical, process and petroleum, energy, earth, civil ,and flow instrumentation engineering but, equally, biological and medical sciences, as well as physics and mathematics; that is, anywhere that “fluid flow and heat transfer” phenomena may play an important role or be a subject of worthy research pursuits.

Keywords

performance characteristics --- Positive Temperature Coefficient (PTC) elements --- heat transfer --- thermal performance --- Computational Fluid Dynamics (CFD) simulation --- air heater --- impingement heat transfer enhancement --- orthogonal jet --- turbulence --- flat plate --- Colebrook equation --- Colebrook-White --- flow friction --- iterative procedure --- logarithms --- Padé polynomials --- hydraulic resistances --- turbulent flow --- pipes --- computational burden --- thermodynamic --- numerical simulation --- thermal effect --- axial piston pumps --- microbubble pump --- bubble generation --- pump efficiency --- bubble size --- concentration --- particle counter --- flow-induced motion --- sharp sections --- T-section prism --- load resistances --- section aspect ratios --- energy conversion --- thermosyphon --- phase change --- two-phase flow --- visualization --- superheated steam --- triaxial stress --- thermogravimetry --- X-ray microtomography --- thermal cracking --- microbubbles --- fluidics --- flow oscillation --- oscillators --- energetics --- pressure loss --- pressure drop --- friction factor --- multiphase flow --- flow rate --- flow regime --- POD --- entropy generation --- boundary layer --- laminar separation bubble --- two-phase flow --- pump performance --- computational fluid dynamics --- centrifugal pump --- flow behavior --- magnetic field --- ferrofluid --- porous cavity --- heat transfer --- mass transfer --- numerical modeling --- numerical modeling --- surrogate model --- correlation --- fin-tube --- spiral fin-tube --- CFD --- ( A g ? F e 3 O 4 / H 2 O ) hybrid nanofluid --- nonlinear thermal radiation --- heat transfer --- chemical reaction --- mass transfer --- method of moment --- numerical results --- transient analysis --- pumps --- moment of inertia --- water hammer --- pipe flow --- wind turbine --- downwind --- tower shadow --- load --- tower --- BEM --- actuator disc --- CANDU-6 --- PHWR --- moderator --- turbulence --- OpenFOAM --- printed circuit heat exchanger --- supercritical LNG --- zigzag type --- heat transfer performance --- gas turbine engine --- particle deposition --- capture efficiency --- multiphase flow --- tip leakage flow --- detached-eddy simulation --- vortex breakdown --- transonic compressor --- POD --- tip leakage flow --- decomposition region --- decomposition dimensionalities --- vortex identification --- SPIV --- fire-spreading characteristics --- real vehicle experiments --- toxic gases --- temperature distributions --- unsteady heat release rate --- thermal energy recovery --- flue gas --- dew point temperature --- condensation --- Aspen® --- thermoacoustic electricity generator --- multi-stage --- traveling-wave heat engine --- push-pull --- inertance-compliance --- acoustic streaming --- n/a

Recent Advances in Biocatalysis and Metabolic Engineering for Biomanufacturing

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ISBN: 9783039215744 / 9783039215751 Year: Pages: 278 DOI: 10.3390/books978-3-03921-575-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Biotechnology
Added to DOAB on : 2019-12-09 11:49:15
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Abstract

The use of biocatalysts, including enzymes and metabolically engineered cells, has attracted a great deal of attention in the chemical and bio-industry, because biocatalytic reactions can be conducted under environmentally-benign conditions and in more sustainable ways. The catalytic efficiency and chemo-, regio-, and stereo-selectivity of enzymes can be enhanced and modulated using protein engineering. Metabolic engineering seeks to enhance cellular biosynthetic productivity of target metabolites via controlling and redesigning metabolic pathways using multi-omics analysis, genome-scale modeling, metabolic flux control, and reconstruction of novel pathways. The aim of this book is to cover the recent advances in biocatalysis and metabolic engineering for biomanufacturing of biofuels, chemicals, biomaterials, and pharmaceuticals. Reviews and original research articles on the development of new strategies to improve the catalytic efficiency of enzymes, biosynthetic capability of cell factories, and their applications in production of various bioproducts and chemicals are included.

Keywords

artificial self-sufficient P450 --- bioplastics --- dodecanoic acid --- Nylon 12 --- ?-aminododecanoic acid --- immobilization --- fluorescein diacetate --- polyurethane foam --- biofilm --- total enzymatic activity --- biocatalysis --- Combi-CLEAs --- cascade reactions --- immobilization --- Myceliophthora --- glyoxal oxidase --- 5-hydroxymethylfurfural --- aerobic methane bioconversion --- bioreactor --- string film reactor --- mass transfer performance --- cross-linked enzyme aggregate --- amyloglucosidase --- magnetic nanoparticles --- bovine serum albumin --- polyethyleneimine --- starch hydrolysis --- Eversa --- interfacial activation --- lipase immobilization --- enzyme stabilization --- enzyme modulation --- metabolic engineering --- synthetic biology --- 3-hydroxypropionic acid --- microbial production --- fatty acid synthesis --- acetate --- redox enzymes --- FTIR spectroscopy --- small molecules --- Corynebacterium glutamicum --- Pvgb --- tunable expression system --- expression vectors --- synthetic biology --- Vitreoscilla --- vgb --- biocatalysts --- biocatalytic reaction --- Methylosinus sporium strain 5 --- soluble methane monooxygenase --- C–H activation --- O2 activation --- synthetic biology --- metabolic engineering --- microbial cell factory --- synthetic metabolic pathways --- mannose --- magnetic nanoparticles --- immobilization --- whole cell --- specific recognition --- 12-hydroxydodecanoic acid --- dodecanoic acid --- CYP153A --- whole-cell biotransformation --- Candida antarctica Lipase B --- transesterification --- polymer functionalization --- tetraethylene glycol --- poly(ethylene glycol) --- hydrogenase --- bio-hydrogen --- chemicals addition --- review --- (?)-?-bisabolol --- mevalonate (MVA) --- mevalonate kinase 1 --- Methanosarcina mazei --- fed-batch fermentation --- monoterpene --- prokaryotic microbial factory --- metabolic engineering --- MEP pathway --- MEV pathway --- n/a

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