Sentence examples for gas boundary from inspiring English sources
Test results show a significant enhancement in heat transfer is caused by disruption of the gas boundary layer due to film waviness.
Due to the phenomenon of increasing reaction rate with decreasing concentration associated with negative order kinetics, it is found that such catalytic systems tend to be self-amplifying with respect to reaction rate rather than self-limiting (as with positive order kinetics) thus rendering them sensitive to temperature increases across the gas boundary layer and within the catalyst itself.
At high temperatures above 975 °C, activation energy was approximately 29 kJ/mol, indicating that that was the mass transport step of reactant gas species through a gas boundary layer from the main gas stream to the surface of Ni substrate.
Under chemical vapor deposition (CVD) conditions of Si on Mo substrate limited by mass transport of reactant gas species through a gas boundary layer, the effect of the Cl/H input ratio on the growth rate of MoSi2 coating at 1200 °C was investigated using a horizontal hot-wall reactor and SiCl4 H2 gas mixtures.
With the development of industrial wireless communication technologies, microelectronics, sensors, distributed information processing, and embedded computers, the industrial wireless sensor networks (IWSNs) have been widely used in many application scenarios such as poisonous gas boundary detection [1, 2], pollution monitoring [3 5], and production monitoring [6, 7].
Based on the assumption of a local non-equilibrium of heat transfer between a solid matrix and gas, a mathematic model of coal mine methane combustion in a porous medium was established, as well the solid-gas boundary conditions.
At h 2 = 4 mm, the approximation for the point strength theoretical model (that the distance of the electrode to the liquid-gas boundary, h ≫ 3.75 mm) clearly breaks down (Fig. 4).
Conceivably, the effective moisture reduction in the samples led to fewer agglomerations and/or reduced densities, influencing the ability of lift forces to act on the particles, while as the limestone content was increased in coal-limestone mixtures, dust layers grew faster, larger, and transitioned into more pronounced instabilities on the dust-gas boundaries.
It is based on the description of the gas phase boundary layer surrounding the dense spray.
On one side, RLF, associated to the O2-gas diffusion across the gas layer boundary, presents low activation energy (Ea) and is proportional to pO2−1, presenting the same values regardless the microstructure.On the other side, RG is in agreement with anO2-reduction mechanismco-limited by O-surface exchange and O-bulk diffusion.
Neither is compelling since, with no carrier gas, the boundary layer for diffusion should be very thin and the aspect ratio of the smallest holes is not large, whereas a larger area may contain more adsorbed material, but it also has a larger area across which growth can occur.
