Results 51 to 60 of about 12,335 (243)

Automated Valve Fault Detection Based on Acoustic Emission Parameters and Artificial Neural Network

open access: yesMATEC Web of Conferences, 2019
Reciprocating compressor is one of the most popular classes of machines use with wide applications in the industry. However, valve failures in this machine often results unplanned shutdown. Therefore, the effective valve fault detection technique is very
Salah M. Ali Al-Obaidi   +6 more
doaj   +1 more source

The Dynamic Energy Band Model of Contact‐Separation and Sliding Mode Triboelectric Charging of Polymers at the Metal‐Polymer Interface

open access: yesAdvanced Science, EarlyView.
Triboelectric charge generation at polymer‐metal interfaces arises from the interplay of intra‐ and inter transformation reactions of mechanochemically generated species, physical properties of polymers, environmental conditions. The direction and the magnitude of electron transfer between metal and polymer are dynamically governed by the relative ...
Sunay Dilara Ekim   +4 more
wiley   +1 more source

FAULT DIAGNOSIS OF RECIPROCATING COMPRESSOR ON THE RESONANCE-BASED SPARSE SIGNAL DECOMPOSITION WITH OPTIMAL Q-FACTOR

open access: yesJixie qiangdu, 2019
Reciprocating compressor vibration signal is typical nonlinear and non-stationary,and the vibration information interference coupling, owing to this problem,a fault diagnosis method of reciprocating compressor on the resonance-based sparse signal ...
WANG JinDong   +3 more
doaj  

Investigation on topology-optimized compressor piston by metal additive manufacturing technique: Analytical and numeric computational modeling using finite element analysis in ANSYS

open access: yesOpen Physics, 2023
Air compressors are widely used in factories to power automation systems and store energy. Several studies have been conducted on the performance of reciprocating and screw compressors.
Selvaraj Ganeshkumar   +8 more
doaj   +1 more source

Analysis of Reciprocating Compressor Valve

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2023
Abstract: A compressor running at even moderate speeds requires for each valve to open and close over one million times a day. It follows that valve design must bear in mind that it needs to be highly reliable and operate efficiently even in adverse conditions, such as in applications where there are liquids and debris in the gas stream.
Ankush S. Gupta   +2 more
openaire   +1 more source

Suitability of commercially available laboratory cryogenic refrigerators to support shipboard electro-optical systems in the 10 - 77 Kelvin region [PDF]

open access: yes, 1983
The primary development of cryogenically cooled infrared systems was accomplished by FLIR systems designed for airborne, passive night vision. Essential to the development of these FLIR systems was a family of closed cycle refrigerators which had to meet
Byrd, E. A., Hansen, R. G.
core   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

Object-Based Thermal Image Segmentation for Fault Diagnosis of Reciprocating Compressors

open access: yesSensors, 2020
As an essential mechanical device in many industrial applications, reciprocating compressors have a high demand for operating efficiency and availability.
Rongfeng Deng   +4 more
doaj   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao   +3 more
wiley   +1 more source

Exergy Analysis and Thermodynamic Model for Reciprocating and Scroll Compressors Used in an Air Conditioning Packaged Unit

open access: yesJournal of Engineering and Sustainable Development, 2014
An exegetical thermodynamic model was used to analyze and optimize reciprocating and scroll compressors of an air condition packaged unit. The experimental work was carried out using a 3.0 TR packaged unit manufactured by Carrier Company.
Sabah Tarik Ahmad   +2 more
doaj  

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