Experimental study of the combustion of natural gas and high-hydrogen content syngases in a radiant porous media burner

The primary objective of this work is to study the blending of natural gas in equimolar
proportions with three high hydrogen content syngases in a radiant porous media burner.
We examined the effects of the composition of the syngases, the fuel-to-air ratio and the
thermal input on the flame stability, the radiation efficiency, and the pollutant emissions
(CO and NOx). In this study, we emulated the syngases with H2eCO mixtures, in which the
H2 to CO ratio was varied between 1.5 and 3. Additionally, pure natural gas was also used as

Numerical Simulation of a Flameless Combustion Furnace with Mixtures of Methane and a Sub-Bituminous Pulverized Coal

A numerical study of flameless combustion with mixtures of methane and a sub-bituminous pulverized coal was carried out. The analyzed mixtures were 0%, 25%, 50%, 75%, and 100% pulverized coal (energy based). The numerical study was performed using the geometry of a laboratory-scale furnace, which was originally designed to obtain the flameless combustion regime burning natural gas.

Utensilio de cocción de doble pared

El mercado actual de los utensilios de cocción se encuentra saturado por diferentes marcas y productos de fabricantes nacionales e internacionales. La competencia se ha basado principalmente en diferenciación de precios e imitación de productos, por lo cual la compañía busca consolidar su mercado nacional y expandir su mercado internacional diferenciando sus productos mediante la oferta de utensilios de menor consumo energético, generando al mismo tiempo una disminución significativa del requerimiento de energía de los hogares del país.

Study of transient heating using an in situ combustion system

In this work, we evaluated the transient heating of a liquid using an in situ laboratory-scale combustion system, and the sensible and latent heat transfer efficiencies were determined through experimental evaluation of the heating of water volume and psychrometric parameters of combustion gases. Tests were performed using natural gas with a composition of 97% (by volume) of methane, and the liquid level was varied to study the effects on efficiency. Experimentation was carried out at atmospheric conditions of 298 K and 850 mbar with combustion gases at 446°C and equivalence ratio φ=0.83.

Prediction and measurement of the critical compression ratio and methane number for blends of biogas with methane, propane and hydrogen

Methane number (MN) and the critical compression ratio (CCR) measurements for twelve blends of biogas with methane or propane and hydrogen additions were taken in a Cooperative Fuel Research (CFR) F2 model engine according to the standard. In addition, CHEMKIN simulations of MN and the CCR were performed on these blends at similar conditions to the CFR F2 engine operation. Eight chemical kinetics mechanisms were used; it was concluded that the best mechanism to simulate the CCR is USCII, and the best mechanism to simulate MN is San Diego.

Direct emissions of nitrous oxide from combustion of gaseous fuels

International Journal of Hydrogen Energy

After molecular nitrogen, nitrous oxide (N2O) is the second most abundant nitrogen compound in the atmosphere and its concentration is rising at rate of 0.26% yr−1 (0.7 ppb yr−1). In the troposphere N2O is a relatively stable compound, however it is reactive in the stratosphere, where it is destroyed by photolysis with ultraviolet radiation. While photolysis in the stratosphere removes this potent greenhouse gas from the atmosphere, subsequent reactions also destroy protective ozone.

Estudio teórico, numérico y experimental de la intercambiabilidad del gas naturel en Antioquia

En el marco de Momentos Académicos Francisco Javier Cadavid Sierra el grupo GASURE hace una invitación a la presentación divulgativa de la tesis maestria ''Estudio teórico, numérico y experimental de la intercambiabilidad del gas naturel en Antioquia'', realizada por el Ingeniero Edwin Uribe del Instituto Técnológico Metropolitano (ITM), cuyos tutores fueron