Results 81 to 90 of about 3,031,130 (395)
This study compares the mechanical properties of Inconel 718 with two newly developed compositionally complex alloys (CCAs). Inco‐like‐H alloy demonstrates significantly improved wear resistance, surface finish, and hardness, notably at high temperatures. This CCA requires no heat treatment and is well suited for additive manufacturing. Its performance
Laurent Peltier+3 more
wiley +1 more source
Performance of a transcritical carbon dioxide heat pump for simultaneous refrigeration and water heating : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology at Massey University [PDF]
Many industrial processes require both refrigeration to less than 0°C and water heating to greater than 60°C. Traditional independent refrigeration and boiler systems have relatively poor energy efficiency, whilst conventional heat pumps can provide both
Yarrall, Michael George
core
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes+3 more
wiley +1 more source
In order to study the influence of structural parameters of porous gas bearing and operating parameters of linear compressor on the static and dynamic performance of porous gas bearing, based on gas lubrication theory, Darcy's law and Reynolds equation ...
Jiangang Li+4 more
doaj +1 more source
FORTRAN program for computing coordinates of circular-arc, single and tandem, turbine and compressor, blade sections on a plane [PDF]
Coordinates for circular arc blade section of aircraft high speed compressor gas turbines were computed using FORTRAN 4 program. Aerodynamic configurations studied include single segment airfoils, airfoils with slots, and mutiple segment tandem arranged ...
Crouse, J. E., Mcnally, W. D.
core +1 more source
This article was written based on the topic of student's dissertation. This is the research of shock phenomena which may occur, under certain conditions, by operation of displacement compressors with the Built-in pressure ratio.
Kolarčík, Kamil, Šmída, Zdeněk
core +1 more source
Modeling of gas leakage through compressor valves
Abstract This paper describes a model developed to predict gas leakage in cases of incomplete sealing of the reed-type valves of small reciprocating compressors adopted for household refrigeration. The model assumes a one-dimensional formulation for the flow, considering the effects of viscous friction, slip-flow regime and compressibility.
Silva, Leandro R., Deschamps, Cesar J.
openaire +5 more sources
Microcellular Poly (Ethylene‐Co‐Vinyl Acetate)/Lignin Nanocomposites for Soft Ferroelectrets
Lignin valorization for advanced porous polymer nanocomposites development and an upscaling route for continuous manufacturing of soft ferroelectrets for energy harvesting are studied. This work examines the role of lignin and carbon nanotubes (CNT) in modifying the mechanical, dielectric, and ferroelectret properties of poly (ethylene‐co‐vinyl acetate)
Yuchen Lian+5 more
wiley +1 more source
3D Bioprinting of Thick Adipose Tissues with Integrated Vascular Hierarchies
An advanced 3D bioprinting technique is used here to create thick adipose tissues with a central, vessel and extensive branching. The construct is made using alginate, gelatin and collagen‐based bioinks. Flow through the complex vessel network is demonstrated as well as its successful integration with a femoral artery following implantation in a rat ...
Idit Goldfracht+5 more
wiley +1 more source
ANALYSIS OF REPAIRED GAS TURBINE AND COMPRESSOR BLADES
In order to reach desired levels of efficiency and power output of jet engines, advanced gas turbine and compressor blades made from Ti‐6AL‐4V alloy operate at very high temperatures (up to 600°C) and speeds (up to 10000 rpm) [3–4]. Pressure of springing streams and inertial forces are main reasons of stress appearance in the blades.
Tishkunov, Alexander+3 more
openaire +5 more sources