Results 81 to 90 of about 46,633 (264)

CFD modelling of grate combustion of solid fuels [PDF]

, 2008
Práce je zaměřena na vytvoření numerického modelu 1D experimentálního reaktoru pro spalování tuhých paliv. Metodou konečných objemů je provedena diskretizace řídících rovnic a takto formulovaná úloha je implementována do programu v prostředí MATLAB.
Juřena, Tomáš
core  

Kinetics of the thermal degradation of Erica arborea by DSC: Hybrid kinetic method

, 2008
The scope of this work was the determination of kinetic parameters of the thermal oxidative degradation of a Mediterranean scrub using a hybrid method developed at the laboratory. DSC and TGA were used in this study under air sweeping to record oxidative
Abramowitz, Albini, Alèn, Bahder, Balbi, Branca, D. Cancellieri, De Luis, Dimitrakopoulos, E. Leoni, Grishin, J.L. Rossi, Kaloustian, Kaloustian, Kissinger, Koufopanos, Leoni, Liodakis, Safi, Spinicci, Vyazovkin, Vyazovkin, Vyazovkin, Vyazovkin, Vyazovkin, Vyazovkin, Vyazovkin   +26 more
core   +2 more sources

On the Role of Linker Fluorination in the Adsorption‐Induced Structural Response of CeIV‐Based Metal‐Organic Frameworks

Chemistry – A European Journal, EarlyView.
The effect of the degree of fluorination of the organic linker on the adsorption behavior of MIL‐140A(Ce) is systematically investigated with a combination of experimental techniques. Cooperative adsorption is switched off in less fluorinated frameworks, as a result of reduced steric hindrance around the adsorption sites.
Francesca Nerli, Virginia Guiotto, Francesca Nardelli, Andrea Giovanelli, Linda Bizzarro, Federico Zizzi, Matteo Signorile, Marco Geppi, Lucia Calucci, Valentina Crocellà, Marco Lessi, Marco Taddei   +11 more
wiley   +1 more source

A Methodology to Integrate Closed‐Cycle Heat Pumps into Batch Distillation Columns

Chemie Ingenieur Technik, EarlyView.
Batch distillation often cannot use vapor recompression due to contamination risks in food and pharma. This study proposes a design for integrating closed‐loop heat pumps using natural fluids. Results show significant energy savings, offering a sustainable alternative to traditional setups.
Philipp Dorn, Michael Libuda, Thomas Meyer, Christian Hoffmann, Jens‐Uwe Repke, Stefan Elbel   +5 more
wiley   +1 more source

Development of a Mechanically Regenerating Desublimator for Freeze‐Drying Systems in the Food Industry

Chemie Ingenieur Technik, EarlyView.
Thermal defrosting limits desublimator efficiency in freeze‐drying. This review and case study compares thermal versus mechanical regeneration, links frost properties and external heat transfer to energy demand, and summarizes pilot‐scale scraping results enabling single‐unit, continuous lyophilization.
Moritz Krummenacher, Mirko Kleingries, Edgar Zimmer, Roman Blättler   +3 more
wiley   +1 more source

Sensitivity analysis and stochastic optimization of levelized cost of hydrogen production through methane pyrolysis

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Hydrogen plays a crucial role across multiple industrial sectors and is increasingly recognized as a clean energy carrier with significant potential in decarbonization efforts. Methane pyrolysis (MP), particularly using molten metal catalysts, offers a promising pathway for hydrogen production with low CO2 emissions.
Adrian Paredes Bozzo, Zukui Li
wiley   +1 more source

Beyond hydrogen: Process design of a biogas steam reformer for Fischer–Tropsch synthesis

The Canadian Journal of Chemical Engineering, EarlyView.
The effect of pressure and steam to carbon ratio on carbon conversion. Abstract We present an analysis of a pilot‐scale multi‐tubular biogas steam reforming reactor, part of a sustainable aviation fuel (SAF) development project in Brazil. The novelty of this work is the application of a new, validated power law kinetic model, specifically developed for
Rafael Belo Duarte, Rafael Dei Tós Barreto, João Lourenço Castagnari Willimann Pimenta, Luiz Mario de Matos Jorge   +3 more
wiley   +1 more source

Radiation effect on rocket engine performance [PDF]

The effects of radiation on the performance of modern rocket propulsion systems operating at high pressure and temperature were recognized as a key issue in the design and operation of various liquid rocket engines of the current and future generations ...
Chiu, Huei-Huang
core   +1 more source

The enthalpies of combustion and formation of mono-chlorobenzoic acids

Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1974
The enthalpies of combustion of o-, m-, and p-chlorobenzoic acid have been determined in an adiabatic rotating-bomb calorimeter. The enthalpies of formation have been obtained by combination of the experimental data with the accepted values for the enthalpies of formation of water, carbon dioxide, and aqueous hydrochloric acid.
Walter H, Johnson, Edward J, Prosen
openaire   +2 more sources

Clathrate hydrate crystallization

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source