Results 131 to 140 of about 3,031,130 (395)

INFLUENCE OF TECHNOLOGICAL PARAMETERS OF CROSS-COUNTRY GAS PIPELINE ON OPERATIONAL INDICES OF COMPRESSOR STATION

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2014
The paper contains an analysis that reveals an influence of technological parameters of a cross-country pipeline on operational indices of a compressor station.
A. A. Abrazovsky
doaj  

Analysis of the performance of the compressor impeller during the transportation of natural gas and gas-hydrogen mixture

open access: yesАвіаційно-космічна техніка та технологія
The research object is the impeller of a centrifugal compressor used in gas-pumping units of main gas pipelines under conditions of transporting natural gas and its mixtures with hydrogen.
Kostiantyn Kapitanchuk, Dmytro Shkliaruk
doaj   +1 more source

Influence of Hysteresis on Magnetocaloric Performance at Cryogenic Temperatures: A Tb3Ni Case Study

open access: yesAdvanced Functional Materials, EarlyView.
The existence of an inverse magnetocaloric effect in metamagnetic materials at cryogenic temperatures is investigated using multiple methods. Contrary to predictions from magnetization data, neither specific heat nor pulsed‐field measurements show such a cooling effect, instead indicating irreversible heating.
Timo Niehoff   +10 more
wiley   +1 more source

Sonication‐Assisted Palladium Nanogaps in a Capacitive Structure: A Tunable and Reliable Solution for Sensitive Hydrogen Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee   +9 more
wiley   +1 more source

Improvement of Performance Range of Centrifugal Compressors Gas by Surge Line Modification Using Active Controller Based on Fuzzy Logic [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2012
In this work, surge of prevention is a critical problem in oil and gas industries, particularly when return gas flow or gas flow reduces in transportation of gas pipelines.
Pezhman Mohammadi   +3 more
doaj  

Conformally Perforated Shellular Metamaterials with Tunable Thermomechanical and Acoustic Properties

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces Conformally Perforated Shellular Metamaterials (CPSMs), which overcome TPMS design limitations by mapping 2D cellular layouts onto 3D surfaces. CPSMs exhibit enhanced elastic stiffness, thermal conductivity, and acoustic performance compared to intact P‐type shellulars, demonstrating their potential as multifunctional ...
Benyamin Shahryari   +8 more
wiley   +1 more source

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