Results 91 to 100 of about 47,254 (254)

The assessment of applicability of single-stage piston long-stroke low-speed compressors in low-temperature refrigeration machines [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The work processes and integral characteristics of low-temperature ammonia single-stage piston longstroke low-speed compressors are considered. A method for calculating the actual working process of a stage of such a compressor is presented, taking into
V. L. Yusha   +2 more
doaj   +1 more source

Study on dynamical characteristics of cooling fluid in engine piston

open access: yesVibroengineering Procedia, 2023
The cooling of engine piston is very important, and the fluid vibration characteristics of its internal cooling oil is the key to affect the heat transfer efficiency. In order to effectively ensure that the piston temperature will not be overloaded and avoid the reduction of sealing performance, a two-phase flow model in the piston cooling chamber is ...
openaire   +1 more source

Oil cooling system for a gas turbine engine [PDF]

open access: yes, 1977
A gas turbine engine fuel delivery and control system is provided with means to recirculate all fuel in excess fuel control requirements back to the aircraft fuel tank.
Coffinberry, G. A., Kast, H. B.
core   +2 more sources

Nonthermal Food Processing Technologies: A Comprehensive Review

open access: yesFuture Postharvest and Food, EarlyView.
The graphical abstract illustrates the shift from traditional thermal food preservation methods to advanced nonthermal technologies. Traditional methods, represented by heating, often compromise the nutritional and sensory quality of foods. In contrast, nonthermal approaches such as high‐pressure processing (HPP), pulsed electric field (PEF ...
Ashok Kumar Yadav   +5 more
wiley   +1 more source

Cooling enhancement for engine parts using jet impingement

open access: yesFrontiers in Mechanical Engineering
A computational study has been performed to evaluate the use of jet impingement for cooling applications in the automotive industry. The current study uses an entire internal combustion engine cylinder with its components as a computational domain.
G. Nasif   +3 more
doaj   +1 more source

Numerical simulation and analysis of temperature and flow field of high-speed axial piston motor pump

open access: yesThe Journal of Engineering, 2018
Based on the theories of heat transfer and the method of computational fluid dynamics, a liquid–solid mathematical model of heat transfer of an axial piston hydraulic motor pump is constructed in this study.
Dianrong Gao   +5 more
doaj   +1 more source

An ultraviolet–visible spectroscopy system for studying real‐time pressure effects on enzyme activity

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Investigations of hydrostatic pressure effects on microbial enzymatic processing are challenging but critical for understanding element cycling in the world's oceans. In this study, we developed and tested a stainless‐steel pressure cell capable of withstanding up to 110 MPa of hydrostatic pressure (equivalent to ~ 11,000 m depth), featuring ...
Maria Papadimitraki   +6 more
wiley   +1 more source

Stimuli‐Responsive 3D‐Printed Structurally Colored Materials Based on Core–Shell Particle Architectures

open access: yesMacromolecular Materials and Engineering, EarlyView.
A novel, structurally colored and pH‐responsive filament for FDM 3D‐printing is presented, which is based on tailored core–shell particles with methacrylic acid as a comonomer in the particle shell. The pH‐responsiveness of the printed objects is achieved due to particle swelling in alkaline conditions.
Sascha Verwaayen   +6 more
wiley   +1 more source

Experimental and simulation study on oscillating flow and heat transfer characteristics of the cooling gallery in steel pistons

open access: yesCase Studies in Thermal Engineering
To characterize the oscillating flow and heat transfer characteristics of the cooling gallery inside a steel piston, a visual experimental platform was designed and constructed.
Yang Liu   +5 more
doaj   +1 more source

Rheological Properties of Polyether Ether Ketones Containing Multi‐Walled Carbon Nanotubes

open access: yesPolymer Engineering &Science, EarlyView.
Rheology, Melt Flow, and Spinnability of PEEK‐MWCNT Melts After Compounding. ABSTRACT In this study, the rheological and melt‐flow behavior of polyether ether ketone (PEEK) filled with multi‐walled carbon nanotubes (MWCNTs) was investigated to evaluate its melt‐spinnability.
Toty Onggar, Chokri Cherif
wiley   +1 more source

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