Results 71 to 80 of about 80,532 (290)
Modeling of Hydro-Pneumatic Energy Storage Using Pump Turbines [PDF]
Modelling of a hydro-pneumatic energy storage system is presented in this paper. Hydro pneumatic storage aims to combine the good efficiency of hydraulic energy conversion and the space flexibility of pneumatic storage.
COLAS, Frédéric +4 more
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The purpose of this research is to evaluate the fire-extinguishing performance of a compressed air foam system at different mixing ratios of pressurized air. In this system, compressed air is injected into an aqueous solution of foam and then discharged.
Dong-Ho Rie, Jang-Won Lee, Seonwoong Kim
doaj +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
Modular 3D Printed Compressed Air Driven Continuous-Flow Systems for Chemical Synthesis
In this present study, we describe the development of a low-cost, small-footprint and modular 3D printed continuous-flow system that readily attaches to existing stirrer hotplates.
Zenobia, Rao +3 more
core +1 more source
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova +2 more
wiley +1 more source
Rapid prediction of Prandtl number of compressed air
Two methods are presented and compared for quickly calculating this important, yet neglected parameter Over the last few decades, a considerable effort has been directed to toward the evaluation of thermophysical and transport properties of air for a ...
Kashiwao, Tomoaki +4 more
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Fatal recto-sigmoid rupture by compressed air
Compressed air is a concentrated stream of air at high pressure and high speed that can cause fatal injury to the operator and the people around him when handled inappropriately.
Varun Pai, Smitha Shetty
doaj +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Energy Efficiency in Compressed Air Systems
Energy use in compressed air systems accounts for typically 10% of the total industrial electricity consumption. It also accounts for close to 99% of the CO2 footprint of an air compressor and approximately 80% of the life cycle costs of a compressor ...
Pavlov, A., Hingorani, A.
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Introduction to compressed air systems [PDF]
The compressed air system has various applications, each usage differs from another. The scope of this book covers the fundamentals and operation of compressed air systems, their maintenance and troubleshooting.
Ramli, Yahaya
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