English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The article is dedicated to the problem of using an alternative energy source – biogas in gas supply systems. A low pressure injection burner with a conical shaped heat diffuser has been designed. A diffuser placed in the burner body provides preheating of the gas-air mixture and allows to increase a flame propagation velocity. A computer simulation of the gas-air mixing process in a body has been made for 3 types of burners: without a diffuser, with a diffuser of 11 mm and 25.5 mm long. As follows from the simulation, 11mm diffuser has no adverse effect on the gas-air mixing process. While an increasing length of the diffuser up to 25.5mm leads to the decreasing cross-section area of a mixing chamber, therefore increasing air-gas mixture rate and methane concentration in the flame holes. Experimental tests have been performed in relation to biogas combustion process for those 3 types of burners. Experimental results proved that placement of 11mm diffuser in a burner body reduces the time for heating water in the tank up to 100°C by 6% (45.41 s). 25.5 mm diffuser reduces the heating time by 1.5% more (11.37 s). Thus, we can make a conclusion that the presence of a diffuser in the burner body increases a flame propagation velocity and a heat rate of the burner.

Development and research of low pressure injection burner for biogas combustion