non-condensable gas
An advanced CFD model to study the effect of non-condensable gas on cavitation in positive displacement pumps
... of gas which is not dissolved may increase the overall amount of ...interaction non- condensable gas with the pressure field implies an expan- sion of the former: this phenomenon is usually ...
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Experimental Investigation on Condensation of Vapor in the Presence of Non-Condensable Gas on a Vertical Tube
... of non-condensable gases at the interface, so that the partial pressure of the non-condensable gases in the gas boundary layer is higher than the partial pressure of the mainstream ...
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An advanced CFD model to study the effect of non-condensable gas on cavitation in positive displacement pumps
... A transient and comprehensive CFD model of a one chamber PD pump was created to estimate the performance of the device under different working fluid properties. Two cases were investigated; in case 1 water with 15 ppm of ...
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Effect of Non Condensable Gas Leakage on Long Term Cooling Performance of Loop Thermosyphon
... We have developed a loop thermosyphon for cooling electronic devices. The cooling performance of a thermosyphon deteriorates with an increasing amount of non-condensable gas (NCG). Design of a ...
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Condensation Heat Transfer with Non Condensable Gas on a Vertical Tube
... 3) We now conduct the experiment study on the heat transfer in presence of non-condensable gas with a vertical tube of 2 m in length and 0.38m in diame- ter. In the experiment, the variation of ...
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Effect of non-condensable gas on the startup of a loop heat pipe
... As non-condensable gas (NCG) is an important factor affecting the startup behavior, its effects on the startup performance of an ammonia-stainless steel LHP with and without preconditioning were ...
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Valorization of Napier grass via intermediate pyrolysis: Optimization using response surface methodology and pyrolysis products characterization
... Figure 6: Interaction graphs and the corresponding surface response plots for the combined effects of process variables on non-condensable gas yield a and b effect of nitrogen flow and t[r] ...
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Heat Pipe for Aerospace Applications—An Overview
... a non-condensable gas (NCG) is added to the heat pipe, in addition to the working fluid When the VCHP is operating, the NCG is swept to- ward the condenser end of the heat pipe by the flow of the ...
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A computational fluid dynamics validation study of steam condensation on the nuclear reactor containment walls
... The specific heat of the air and reference temperature was used for calculation of reference enthalpy in the CFD-ACE+ code. A user defined subroutine was added for modeling steam condensation as sinks of mass and ...
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Development of an Australian National Facility for Cavitation Research
... free gas content and the ability to precisely model wake ...dissolved gas content and nuclei spectra for extended test periods, and the continuous injection and removal of nuclei and high volumes of ...
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In situ high-temperature gas sensors: continuous monitoring of the combustion quality of different wood combustion systems and optimization of combustion process
... In addition, there is a high demand to monitor the combus- tion quality of automatically fed wood-chip-fuelled furnaces. The gaseous emissions of these furnaces are comparably low as long as the system is operated under ...
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The combustion mitigation of methane as a non CO2 greenhouse gas
... The gas phase chemistry involved in the oxidation process of hydrocarbon fuels is better understood as discussed previously, but the elementary steps of oxidation over the catalyst surface must also be taken into ...
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Antibodies to group A streptococcal virulence factors, SIC and DRS, increase predilection to GAS pyoderma
... 150 GAS pyoderma subjects, b) 25 children with PSGN, c) 50 non-GAS pyoderma cases, d) two age-matched control groups; control 1 for PSGN and control 2 for GAS pyoderma were analysed for ...
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Employment generation in Brazilian coffee regions
... Sectors Arabica coffee Robusta coffee Other agriculture and related services Non-metallic mineral industries Oil and gas Non-metallic mineral industries Steel industries Non-ferrous meta[r] ...
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Lattice Boltzmann models for non-equilibrium gas flows
... Gas flows in micro/nano-fluidic devices have found a broad range of applications, from extracting biological samples to active aerodynamic flow control. Flows in these miniaturized devices are generally low speed ...
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Spatial stochasticity and non-continuum effects in gas flows
... Two gas flow configurations have been investigated in the context of non-continuum and non-local-equilibrium ...and non-continuum gas behaviour that the traditional Navier-Stokes- ...
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Kakkad, Darshan Mahesh (2017): Ionized and molecular gas studies to unveil AGN feedback. Dissertation, LMU München: Fakultät für Physik
... cold gas responsible for the nuclear obscuration (Fabian et ...ing gas is given by the cross section of the particles and in presence of a gas (say a dominant atom like hydrogen), this would be ...
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Multiscale simulation of non isothermal microchannel gas flows
... In this section, we apply the IMM to determine whether a greater pressure drop can be achieved by altering the temperature distribution, whilst maintaining the same total temperature drop. For the purposes of this ...
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On the Thermodynamics of a Two Dimensional Electron Gas with Non Parabolic Dispersion
... With the help of the relations (2)-(5) can provide useful information about the behavior of the two-dimensional electron gas at varying temperatures and the total electron concentration. Calculations of the ...
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GAS PIPELINES IN NIGERIA: SINE QUA NON FOR ECONOMIC DEVELOPMENT
... the gas pipeline development in Nigeria and outlines needed strategies needed for sustainable development of gas pipeline for socio-economic development in ...inefficient gas pipeline development ...
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