A novel approach to high-pressure gas releases simulations

2021 ◽  
pp. 104531
Author(s):  
Alberto Moscatello ◽  
Anna Chiara Uggenti ◽  
Raffaella Gerboni ◽  
Andrea Carpignano
Keyword(s):  
High Pressure ◽  
Novel Approach

The Role of Porous Media in Homogenization of High Pressure Diesel Fuel Spray Combustion

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Navid Shahangian ◽  
Damon Honnery ◽  
Jamil Ghojel
Keyword(s):  
High Pressure ◽  
Porous Media ◽  
High Speed ◽  
Fuel Spray ◽  
Compression Ignition Engines ◽  
System Pressure ◽  
Novel Approach ◽  
Air Mixing ◽  
The Media

Interest is growing in the benefits of homogeneous charge compression ignition engines. In this paper, we investigate a novel approach to the development of a homogenous charge-like environment through the use of porous media. The primary purpose of the media is to enhance the spread as well as the evaporation process of the high pressure fuel spray to achieve charge homogenization. In this paper, we show through high speed visualizations of both cold and hot spray events, how porous media interactions can give rise to greater fuel air mixing and what role system pressure and temperature plays in further enhancing this process.

scholarly journals A Novel Approach to Protein Crystallization: Use of a Magnetic Field and High-Pressure

2004 ◽  
Vol 44 (2) ◽  
pp. 58-63
Author(s):  
Gen SAZAKI ◽  
Shin-ichiro YANAGIYA ◽  
Yoshihisa SUZUKI ◽  
Satoru MIYASHITA ◽  
Takao SATO ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Pressure ◽  
Protein Crystallization ◽  
Novel Approach

High Pressure Homogenization as a Novel Approach for the Preparation of Co-Crystals

2013 ◽  
Vol 13 (5) ◽  
pp. 2013-2024 ◽  
Author(s):  
María P. Fernández-Ronco ◽  
Johannes Kluge ◽  
Marco Mazzotti
Keyword(s):  
High Pressure ◽  
High Pressure Homogenization ◽  
Novel Approach

Impact of Manufacturing Variability on Multistage High-Pressure Compressor Performance

2012 ◽  
Vol 134 (11) ◽  
Author(s):  
Alexander Lange ◽  
Matthias Voigt ◽  
Konrad Vogeler ◽  
Henner Schrapp ◽  
Erik Johann ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Rise ◽  
Leading Edge ◽  
Back Pressure ◽  
Operating Conditions ◽  
Geometric Parameters ◽  
Maximum Efficiency ◽  
Novel Approach ◽  
High Pressure Compressor ◽  
Pressure Compressor

The present paper introduces a novel approach for considering manufacturing variability in the numerical simulation of a multistage high-pressure compressor (HPC). The manufacturing process is investigated by analyzing three of a total of ten rotor rows. Therefore, 150 blades of each of the three rows were 3D scanned to obtain surface meshes of real blades. The deviation of a scanned blade to the design intent is quantified by a vector of 14 geometric parameters. Interpolating the statistical properties of these parameters provides the manufacturing scatter for all ten rotor rows expressed by 140 probability density functions. The probabilistic simulation utilizes the parametric scatter information for generating 200 virtual compressors. The CFD analysis provides the performance of these compressors by calculating speed lines. Postprocessing methods are applied to statistically analyze the obtained results. It was found that the global performance parameters show a significantly wider scatter range for higher back pressure levels. The correlation coefficient and the coefficient of importance are utilized to identify the sensitivity of the results to the geometric parameters. It turned out that the sensitivities strongly shift for different operating points. While the leading edge geometry of all rotor rows dominantly influences the overall performance at maximum efficiency, the camber line parameters of the front stages become more important for higher back pressure levels. The analysis of the individual stage performance confirms the determining importance of the front stages—especially for highly throttled operating conditions. This leads to conclusions regarding the robustness of the overall HPC, which is principally determined by the efficiency and pressure rise of the front stages.

A green and efficient approach to selective conversion of xylose and biomass hemicellulose into furfural in aqueous media using high-pressure CO2 as a sustainable catalyst

2016 ◽  
Vol 18 (10) ◽  
pp. 2985-2994 ◽  
Author(s):  
Ana Rita C. Morais ◽  
Maria Daniela D. J. Matuchaki ◽  
Jürgen Andreaus ◽  
Rafal Bogel-Lukasik
Keyword(s):  
High Pressure ◽  
Lignocellulosic Biomass ◽  
Heterogeneous Catalysts ◽  
Aqueous Media ◽  
Green Solvents ◽  
Efficient Approach ◽  
Selective Conversion ◽  
Novel Approach ◽  
Mineral Acids ◽  
High Pressure Co2

A novel approach to produce furfural from lignocellulosic biomass with green solvents without the use of mineral acids or heterogeneous catalysts.

Synthesis of fully sulfonated polyaniline: a novel approach using oxidative polymerisation under high pressure in the liquid phase

1998 ◽  
pp. 1327-1338 ◽  
Author(s):  
Hardy S. O. Chan ◽  
Siu-Choon Ng ◽  
Pauline M. L. Wong ◽  
Hardy S. O. Chan ◽  
Annette J. Neuendorf ◽  
...  
Keyword(s):  
High Pressure ◽  
Liquid Phase ◽  
Novel Approach ◽  
Sulfonated Polyaniline

High-pressure freezing combined with in vivo-DAB-cytochemistry: A novel approach for studies of endocytic compartments

2010 ◽  
Vol 169 (3) ◽  
pp. 286-293 ◽  
Author(s):  
Adolf Ellinger ◽  
Monika Vetterlein ◽  
Christoph Weiss ◽  
Claudia Meißlitzer-Ruppitsch ◽  
Josef Neumüller ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Freezing ◽  
Novel Approach ◽  
Dab Cytochemistry ◽  
Endocytic Compartments
Sign in / Sign up

Export Citation Format

Share Document