Results 41 to 50 of about 4,382,719 (380)

Workflow for computational fluid dynamics modeling of fixed‐bed reactors packed with metal foam pellets: Hydrodynamics

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract In recent years, the catalyst pellets made of open‐cell metallic foams have been identified as a promising alternative in fixed‐bed reactors. A reliable modeling tool is necessary to investigate the suitability of different foam properties and the shapes of foam pellets.
Ginu R. George   +7 more
wiley   +1 more source

Drop breakage in a single‐pass through vortex‐based cavitation device: Experiments and modeling

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Liquid–liquid emulsions are used in many sectors such as personal care, home care, and food products. There is an increasing need for developing compact and modular devices for producing emulsions with desired droplet size distribution (DSD). In this work, we have experimentally and computationally investigated an application of vortex‐based ...
Abhijeet H. Thaker, Vivek V. Ranade
wiley   +1 more source

Cornell University School of Civil Engineering Tests on light beams of cold-formed steel [PDF]

open access: yes, 1943
I. SCOPE OF THIS REPORT 24 symmetrical I-beams were tested in bending. They represent 12 different types of beams, with two beams of each type. The beams are formed from two identical channels, furnished with lips on both flanges, joined by bolting in ...
Cornell University School of Civil Engineering
core   +10 more sources

Causal Diagrams for Structural Engineers [PDF]

open access: yesarXiv, 2023
Causal diagrams are logic and graphical tools that depict assumptions about presumed causal relations. Such diagrams have proven effective in tackling a variety of problems in social sciences and epidemiology research yet remain foreign to civil engineers.
arxiv  

Performance of limestone‐based sorbent for sorption‐enhanced gasification in dual interconnected fluidized bed reactors

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract A possibility to carry out sorption‐enhanced gasification (SEG) is represented by its integration with the calcium looping concept in dual interconnected fluidized beds (DIFB). This article is focused on the sorbent CO2 uptake performance and attrition/fragmentation tendency when operating conditions simulating those of a DIFB‐SEG process are ...
Antonio Coppola   +4 more
wiley   +1 more source

Electrified methane steam reforming on a washcoated SiSiC foam for low‐carbon hydrogen production

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract In view of largely available renewable electricity as a green future resource, here we report the electrification of a Rh/Al2O3 washcoated SiSiC foam for methane steam reforming (MSR). We show that, thanks to the suitable bulk resistivity of the SiSiC foam, its direct Joule heating up to relevant temperatures is feasible; the interconnected ...
Lei Zheng   +5 more
wiley   +1 more source

The Cosmic Hitchhikers Hypothesis: Extraterrestrial Civilizations Using Free-Floating Planets for Interstellar Colonization [PDF]

open access: yesarXiv, 2022
I propose the Cosmic Hitchhikers hypothesis as follows. Advanced extraterrestrial civilizations may use free-floating planets as interstellar transportation for space exploration and interstellar colonization. Large groups or populations of their biological species, post-biological species, and technologies may become Cosmic Hitchhikers when they ride ...
arxiv  

Creating a Dataset to Boost Civil Engineering Deep Learning Research and Application

open access: yesEngineering, 2020
With cutting edge deep learning breakthrough, numerous innovations in many fields including civil engineering are stimulated. However, a fundamental issue that civil engineering research community currently facing is lack of a publicly available, free ...
Murad A. Qurishee   +5 more
semanticscholar   +1 more source

Flow physics of planar bistable fluidic oscillator with backflow limbs

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Fluidic oscillators (FOs) are used in a variety of applications, including process control and process intensification. Despite the simple design and operation of FOs, the fluid dynamics of FOs exhibit rich complexities. The inherently unstable flow, jet oscillations, and resulting vortices influence mixing and other transport processes.
Ketan Madane   +3 more
wiley   +1 more source

Coupling hydrothermal liquefaction and aqueous phase reforming for integrated production of biocrude and renewable H2

open access: yesAIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Lignin‐rich stream from lignocellulosic ethanol production was converted into biocrude by continuous hydrothermal liquefaction (HTL) while hydrogen was produced by aqueous phase reforming (APR) of the HTL aqueous by‐product. The effects of Na2CO3 and NaOH were investigated both in terms of processability of the feedstock as well as yield and ...
Arturo Di Fraia   +8 more
wiley   +1 more source

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