الفهرس 
Domestic Burners:Only 14 pages are availabe for public view
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Abstract
An experimental study carried out, to investigate the thermal efficiency and carbon monoxide emissions for different gas domestic burner designs, these designs included a number of approaches that were determined to influence of these aspects on the overall performance of the burner. In this research, two types of burner were examined a single ring burner and a double ring burner. Testing each burner on multiple pan support heights at different air to fuel ratios to see the tangible enhancement.
For the single ring burner three burners were tested a radial ordinary design, a swirl design and an impinging flames design. The highest efficiency was for the swirl single ring, and the achieved efficiency was 60.4% with a rise of 1.5% from the radial design at the lowest pan support height and highest Reynolds number.
The main reason behind this high efficiency is that the swirling flow allowed for a longer residence time between the flames and the heated load transferred more heat to the load while this measured the highest emissions out of all single ring burners.
The carbon monoxide emissions in the impinging flames burner were as low as 0.008%; this was due to the long flames propagating radially by impinging flames that resulted to a lower contact area between the flames and the heated load, adding on the impinging flames allowed more secondary air to surround the flames lengths.
For the double ring burner four burners were examined a radial design, swirl design, counter swirl design, and impinging flames design. The counter flow in the double ring burner showed the best thermal efficiency with a value of 57.4%, with a rise also of 1.5% the same as the single ring burner.
The double ring burner with impinging flames was the lowest emissions out of all designs with lowest emissions achieved 0.018 % of carbon monoxide emissions, but the best practical burner for the limits of international standards was the impinging flame burner.
To conclude the impinging flames and swirl flow when added to the gas domestic burners tend to improve the performance of the burners. More combinations need to be experimented to work more on enhancing the thermal efficiency and lowering the combustion emissions.