Results 51 to 60 of about 3,031,130 (395)

Multicomponent gas sorption Joule-Thomson refrigeration [PDF]

open access: yes, 1991
The present invention relates to a cryogenic Joule-Thomson refrigeration capable of pumping multicomponent gases with a single stage sorption compressor system.
Bard, Steven   +2 more
core   +1 more source

DEVELOPMENT OF UHTREX GAS-BEARING COMPRESSORS [PDF]

open access: yes, 1963
Two helium blowers operating on hydrodynamic gas bearing and suitable for highly contaminated systems are described. The cleanup loop blower easily met its design conditions (15-psi pressure rise at 120 lb/hr), as did the main loop blower (8 psi at 10,250 lb/hr).
Crowe, W. E., Schwarz, H.
openaire   +3 more sources

Unrolling of Syngonium podophyllum: Functional Anatomy, Morphology and Modelling of Its Peltate Leaves

open access: yesAdvanced Biology, EarlyView.
The unrolling of the peltate leaves in Syngonium podophyllum is analyzed and quantified (left‐hand side to center). These measurements serve to verify a mathematical model for leaf unrolling based on the model used in Schmidt (2007). An additional formula for obtaining a layer mismatch from a prescribed radius is derived.
Michelle Modert   +4 more
wiley   +1 more source

A preliminary assessment of the initial compression power requirement in CO2 pipeline “Carbon Capture and Storage (CCS) technologies" [PDF]

open access: yes, 2016
CO2 captured from fossil-fueled power generation plants is said to be economically transported via pipelines over long distances. The CO2 must be compressed to pipeline specifications using compressors and pumps that are driven by gas turbine (GT) or ...
Anosike, Nnamdi Benedict   +2 more
core   +3 more sources

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

open access: yesAdvanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee   +3 more
wiley   +1 more source

THE OPTIMUM OVERALL PRESSURE RATIO OF THE INTERCOOLED GAS TURBINE UNIT

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
In the article developed a mathematical model expansion and contraction of a real gas. Article shows the relationship between the isentropic efficiency of the compressor and the isentropic efficiency of the compressor stages. It was proved the need for a
N. G. Khasanov, A. B. Shigapov
doaj   +1 more source

Multiscale Modeling of Process‐Induced Defects in Fused Filament Fabrication‐Printed Materials

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a predictive multiscale modeling tool for defect analysis of fused filament fabricated‐printed materials and their performance prediction using a mechanistic data science‐based reduced‐order modeling approach. Process‐induced defects are inherent to additively manufactured parts and significantly influence the performance of printed
Satyajit Mojumder   +3 more
wiley   +1 more source

Underground Storage of Green Hydrogen—Boundary Conditions for Compressor Systems

open access: yesEnergies, 2022
The large-scale storage of hydrogen in salt caverns, modelled on today’s natural gas storage, is a promising approach to storing renewable energy over a large power range and for the required time period. An essential subsystem of the overall gas storage
Heinz Bekebrok   +4 more
doaj   +1 more source

Direct Consolidation of Copper–Graphene Composite by Rotary Swaging

open access: yesAdvanced Engineering Materials, EarlyView.
The applicability of the rotary swaging method for preparation of electroconductive copper–graphene composite by direct consolidation of powders is proven. The consolidated material features advantageous microstructure featuring fine grains and twins, with homogeneous distribution of graphene, primarily along the twin boundaries, which contribute to ...
Radim Kocich   +2 more
wiley   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

open access: yesAdvanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk   +4 more
wiley   +1 more source

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