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Aspects of Two-Phase Flow Boiling Heat Transfer inside Tube of Water Tube Boiler—A Numerical Study
AbstractThe study of flow boiling heat transfer inside larger diameter tubes, which are used in water tube boilers, is sparse in the literature....
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Hamiltonian, geometric momentum and force operators for a spin zero particle on a curve: physical approach
The Hamiltonian for a spin zero particle that is confined to a 1D curve embedded in the 3D space is constructed. Confinement is achieved by starting...
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10W@80K High Frequency Pulse Tube Cryocooler
For the space infrared detectors, there are high requirements for the volume and weight of the pulse tube cryocooler. However, the volume and weight...
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Simulation Study on Flow and Heat Transfer of Cross-Arrangement Tube Bundle
The air precooler of SABRE engine (Synergetic Air-Breathing Rocket Engine) is a tube bundle type of heat exchanger consisting of thousands of small...
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Molecular Dynamics Simulation of the Phase Shift Mechanism on Inertance Pulse Tube Refrigerator
At present, it has become a hot spot to study the thermodynamic mechanism of the pulse tube from the perspective of microscopic particles, but the...
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Low-Power Vacuum Tube Amplifiers
The invention of the transistor has made vacuum tubes obsolete in virtually all applications, except for one major exception. Musical instrument...
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A 0.79 W/150 K Micro Pulse Tube Cryocooler
A new single-stage coaxial micro pulse tube cryocooler has been developed by Technical Institute of Physics and Chemistry, CAS. With the...
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An “Anomalous” Effect of Illumination on the Breakdown in a Long Discharge Tube in Xenon
AbstractWe studied an electric breakdown in an 80-cm-long discharge tube with the inner diameter of 1.5 cm (the so-called “long discharge tube”) in...
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Experimental Study on Hydrodynamic Behavior of Falling Film over Vertical Tube
Falling film configurations play an important role in characterizing the heat transfer due to changes in hydrodynamic behavior. The purpose of this...
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Circumferential buckling of a hydrogel tube emptying upon dehydration
A cylindrical hydrogel tube, completely submerged in water, hydrates by swelling and filling its internal cavity. When it comes back into contact...
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Flow Characteristics and Aerodynamic Heating of Tube Trains in Choked/Unchoked Flow: A Numerical Study
Hyperloop has become one of the key reserve technologies for future high-speed rail transit. The gas in the tube is compressed and rubbed, leading to...
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Optimization of Two-Stage High-Efficiency Pulse Tube Cryocooler for Space Application at 20K
A high-efficiency pulse tube cryocooler at 20 K is a prerequisite for closed JT coolers to obtain 100 mW@4.2 K in space. Therefore, it is of...
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The Thermodynamic Crisis under Spontaneous Boiling-Up of Superheated n-Pentane in a Vertical Glass Tube
AbstractThe boiling-up kinetics of superheated n -pentane in a glass tube has been studied by means of a high-speed video filming and a fast-acting...
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Magnetic Properties of Tube-Layers of Magnetized Chains of Spheres: Monitoring by Measured Magnetic Core Parameters
To solve scientific and practical problems in the field of electromagnetic measurements, a detailed magnetic characteristic of inhomogeneous media...
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Flames with Alternating-Sign Velocity in Methane–Air and Methane–Air–Coal Dust Mixtures in a Closed Vertical Tube
AbstractThis paper presents the results of an experimental study of flames propagating with an alternating-sign velocity in methane–air and coal...
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High and Ultra-high Vacuum Pressure Profile and Its Gradient of the Conic Tube
Vacuum systems commonly have many of their parts in a tubular shape, in particular the pum** lines. This paper presents analytical and numerical...
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Investigation of the Flow Field in the Pulse Tube Refrigerator with the Multi-Bypass Structure Through the Finite Element Method
The multi-bypass structure established a radial gas channel between the regenerator and the pulse tube in the pulse tube refrigeration. Numerical...
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Two-dimensional modeling and simulation of a conceptual barocaloric regenerator with polydimethylsiloxane rubber in a tube bank matrix design
One approach to address climate change is to replace vapor cooling systems with less harmful technologies. Solid-state refrigeration shows promise...
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Evaluation of CT Acquisition Protocols Effect on Hounsfield Units and Optimization of CT-RED Calibration Curve Selection in Radiotherapy Treatment Planning Systems
AbstractThe acquisition parameters affect the Hounsfield units (HU) on a CT scanner used for radiotherapy treatment planning. The degree of effect...
