Motivated by reducing the uncertainties in coolability analysis of a debris bed, this paper proposed a modified model for the pressure drops of two phase flow through packed beds with coarse particles based on the exp...
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In order to obtain high efficiency and low resistance droplet separation apparatus, axial vane type gas-liquid separators with different guide vanes were designed, and the RNG k-Ε model as well as discrete phase mode...
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The experimental monitoring system of pressurized-liquid-screen bed was designed and set in this paper. The flow characteristics were studied especially the analysis of differential pressure pulse characteristics and ...
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Low temperature corrosion is one of the key issues in application of low-low temperature electrostatic precipitator. The concentration of SO3 affects the acid dew point temperature of flue gas. The exhaust temperature...
Low temperature corrosion is one of the key issues in application of low-low temperature electrostatic precipitator. The concentration of SO3 affects the acid dew point temperature of flue gas. The exhaust temperature after the air preheater should be higher than the acid dew point temperature. The residual heat of flue gas is fully utilized by the low-temperature economizer. The efficiency of low-low temperature electrostatic precipitator is improved by the comprehensive effect of the condensation of SO3 on the surface of the fine particles, the decrease of the specific resistance of the particles and the agglomeration of the fine particles.
Droplets enclosed by elastic interfaces can be extensively found in nature and engineering applications. For instance, oil-water droplets in petroleum engineering can be surrounded by Asphaltene thin film;biological c...
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Droplets enclosed by elastic interfaces can be extensively found in nature and engineering applications. For instance, oil-water droplets in petroleum engineering can be surrounded by Asphaltene thin film;biological cells are usually surrounded by elastic biological membranes consisting of lipid bilayers with spectrin proteins;droplets enclosed by polymer membranes or lipid bilayers are also widely found in materials science and engineering. This type of droplets is also an excellent structure for encapsulation, transport and release of active agents due to the presence of elastic interface, thus they are widely used in applications such as cosmetics and drug delivery. To study the deformation behavior of single droplet enclosed by complex interfaces under shear flow is fundamental for understanding rheological characteristics of droplet suspensions and for developing droplet-based substance transport technologies. The presence of various molecules confers the drop interfaces various special mechanical properties, such as resistances to shear deformation, area dilatation and bending deformation. Those special mechanical properties significantly influence the transport characteristics of momentum and energy between droplets and surrounding fluids, thus conventional theories based on surface tension are no longer valid for understanding the dynamics of droplets enclosed by elastic interfaces. Generally, the deformation of droplets enclosed by elastic interfaces under shear flow is mainly governed by the coupling of fluid inertia, interface elasticity and fluid viscosity. Current literatures mostly focus on the deformation of drops with elastic interfaces with inertia neglected, which is based on the assumption of Stokes flow. However, the effects of fluid inertia are of great importance in many cutting edge technologies and in vivo bioprocesses, such as inertial microfluidic technologies for separation and manipulation of droplets, blood flow with moderate Reynolds nu
As an established method to analyse the thermodynamic process inside the cylinder, the p-V diagram can identify typical faults such as leakages through the sealing rings and self-acting valves, loosening and flutterin...
As an established method to analyse the thermodynamic process inside the cylinder, the p-V diagram can identify typical faults such as leakages through the sealing rings and self-acting valves, loosening and fluttering of the vales, etc. However, the installation of the pressure sensor within the cylinder for recording the p-V diagram may lead to degradation of the cylinder integrity, and hereby potential leakage and lowered strength of the cylinder. This paper presents a new non-destructive method for fault diagnosis of the reciprocating compressor by measuring the piston rod strain, from which the p-V diagram was transformed. An algorithm for reconstruction of the p-V diagram was proposed based on the key feature points on the piston rod load curve that reflect the opening and closing events of the compressor valves. The reconstruction method was validated by comparing the calculated p-V diagrams with the experimental results. The reconstructed p-V diagrams were further used for fault diagnosis of the reciprocating compressors, with which the acoustic emission method was integrated. The results show that this method can easily monitor the working conditions and identify whether and where leakage, fluttering and delayed closing of the valves occur, which indicates that this method can be utilized as a powerful tool of non-destructive condition monitoring and fault diagnosis of the reciprocating compressors.
Motivated by reducing the uncertainties in quantification of debris bed coolability in a severe accident of light water reactors (LWRs), this paper reports experimental studies on the pressure drops of single /two pha...
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The compound droplet will exhibits much more complex behavior when it adheres to a wall under flow. Studying the influence of related parameter plays an important role in the manipulation of the compound droplet. In t...
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