Biogas is a renewable gas with low heat energy, which makes it extremely difficult to use as fuel in conventional natural equipment. Nonetheless, the of hydrogen biogas additive has proven have beneficial effect on flame stability and combustion behavior. This study evaluates biogas–hydrogen burner able work up 100 kW. Tests were performed for three different compositions biogas: BG70 (30% CO2)...

Water loss in low permeability reservoirs during hydraulic fracturing well completions typically results in a decrease in natural gas production due to capillary trapping near the fractures. Shale gas reservoirs, however, have shown a trend of improved gas production with increased loss of completion fluids to the shale. This nonintuitive relationship between water imbibition and enhanced gas p...

Industrial, large-scale helium recovery from natural gas is typically performed though cryogenic distillation. These technologies need a deep knowledge of the thermodynamics treated mixture: in case to pipeline, CO2 present feed stream might freeze at process operating temperatures. The aim this work analyze thermodynamic behavior four-component mixture CH4–N2–He–CO2 predict its triphasic solid...

Chemical detection systems based on chemo-resistive sensors usually include a gas chamber to control the sample air flow and to minimize turbulence. However, such a kind of experimental setup does not reproduce the gas concentration fluctuations observed in natural environments and destroys the spatio-temporal information contained in gas plumes. Aiming at reproducing more realistic environment...

Currently, the issue of creating decarbonized energy systems in various spheres life is acute. Therefore, for gas turbine power including hybrid plants with fuel cells, it relevant to transfer existing engines pure hydrogen or mixtures natural gas. However, significant problems arise associated possibility appearance flashback zones and acoustic instability combustion, an increase temperature w...

Natural odorants are complex mixtures of diverse chemical compounds. Monomolecular odorants are represented in the main olfactory bulb by distinct spatial patterns of activated glomeruli. However, it remains unclear how individual compounds contribute to population representations of natural stimuli, which appear to be unexpectedly sparse. We combined gas chromatography and intrinsic signal ima...

To investigate flow of gas mixtures through micro channel in detail, the tangential momentum accommodation coefficients of each species for gaseous mixtures were determined by analyzing the Couette flow problem of a slightly rarefied gas between two walls. The molecular dynamics (MD) method for the interaction of gas molecule with the wall surface is combined with the DSMC method for the motion...

acids and peptides due to the manifold separation modes that can be applied. Short analysis times, easy manipulation of separation conditions and small injection volumes (nanolitres) are further advantages. The Reld of biomedical and clinical amino acid and peptide analysis is still under investigation, especially as the transfer and adaptation of the separation modes to a broader range of real...