Abstract
This paper reports an experimental study into the combustion of alternative gases in the form of a mixture of propane-butane with air and carbon dioxide after a stabilizing flat module whose both sides are flown around with an airflow. The ballasted fuel was fed by jets into the airflow from the holes located on the side walls of the stabilizer. In this case, the fuel and air were partially premixed. It was established that when ballasting fuel with inert admixtures, the length of the torch and the maximum temperature gradually decreased while nitrogen oxide emissions decreased. With an increase in the content of ballast in fuel, combustion breaks. The dependence of torch stability on the relative consumption of ballast has been established. To stabilize the combustion, highly reactive fuel is supplied to the recirculation zone after a stabilizer from a separate collector. Ballasted fuel passes through the next torches of high-temperature fuel; the all fuel combustion process takes place. The combined scheme of mixture formation makes it possible to adjust fuel consumption in the zones and thus maintain a stable burner power. In the case of supplying all fuel to the recirculation zone after the stabilizer, a so-called "rich" detachment is possible when the torch is detached from the stabilizer. When working under such modes, highly reactive fuel is supplied from the holes on the side walls of the stabilizer, which are placed closer to its detachment edges than the holes for the supply of ballasted fuel. At the same time, the jets of ballasted fuel also pass between the torches of highly reactive fuel so there is joint combustion of all fuel
Highlights
There is a stunning increase in natural gas prices in the world
Since the level of consumption in the energy and fossil fuel industry, in particular natural gas, greatly affects the development of the national economy of industrialized countries, this event jeopardizes the economic stability of these countries
The purpose of this work is to determine the main characteristics of stabilizing modular burner devices when burning ballasted gas fuels under various schemes of mixing
Summary
Since the level of consumption in the energy and fossil fuel industry, in particular natural gas, greatly affects the development of the national economy of industrialized countries, this event jeopardizes the economic stability of these countries. This fact strengthens interest in conducting research on the widespread use of other fuels that can substitute natural gas. These include such highly reactionary fuel as liquefied gas (propane-butane), as well as so-called alternative gas fuels of natural and artificial origin This state of affairs is of particular importance for those states whose national economies experience a shortage of energy carriers, first of all, natural gas. The use of alternative gas fuels, including in the energy and industry, and the search for means for their effective combustion is very relevant and should be one of the components in the policy of rational and frugal use of renewable energy sources
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