What is a low NOx gas burner?
Low NOx burners are designed to control fuel and air mixing at each burner in order to create larger and more branched flames. Peak flame temperature is thereby reduced, and results in less NOx formation. In the initial stage, combustion occurs in a fuel rich, oxygen deficient zone where the NOx are formed.
What does low NOx stand for?
What is low NOx or Ultra-low Nox? NOx is an abbreviation for nitrogen oxides – a collection of harmful and toxic greenhouse gases. Low NOx and Ultra-Low NOx refers to emission limits on these products and are determined by local EPA standards and will vary for each type of heating equipment.
What is the difference between low NOx and ultra low NOx?
When it comes to Low NOx, it can reduce the emission of NOx to 30 pm. Low NOx equipment uses FGR and is able to maintain 3 to 5% excess oxygen with strong controls. The turndowns are less than the ratio of 8:1. For UltraLow NOx, the emissions are between 7 to 15 ppm.
How do low NOx burners work?
Low NOx burners are designed to control air and fuel mixing at each burner, which creates more branched and larger flames. By reducing the peak flame temperature, significantly less NOx is formed in the process. These hydrocarbons interact with the already formed NOx.
What does NOx do to your body?
NOx has direct and indirect effects on human health. It can cause breathing problems, headaches, chronically reduced lung function, eye irritation, loss of appetite and corroded teeth. Indirectly, it can affect humans by damaging the ecosystems they rely on in water and on land—harming animals and plants.
Does NOx contribute to global warming?
Nitrogen oxides (NOx) act as indirect greenhouse gases by producing the tropospheric greenhouse gas ‘ozone’ via photochemical reactions in the atmosphere. The impact of NOx gases on global warming is not all bad though. NOx is also emitted directly into the troposphere by lightning, ammonia oxidation and aircraft.
Why do you need a low NOx burner?
With regards to the aim of designing behind the low NOx burner, these specifically control the fuel and air mixing at every burner/boiler to produce much larger and branched flames. Hence, this reduces the peak flame temperature and ultimately results in less NOx formation.
What does NOx stand for in a heater?
“NOx” is an abbreviation for Nitrogen Oxides, which are a type of greenhouse gas that are harmful to the atmosphere. Nitrogen Oxide gases are emitted when burning fuel at high heat – like with an industrial hot oil heater.
How is burnout achieved in a low NOx boiler?
Where a conventional low NOx boiler is consumed, activities including combustion at first, reduction as second and burnout as the third are achieved within three distinctive stages as mentioned below:
Who was the inventor of the LO NOx burner?
John Joyce the inventor of the LO-NOx burner at Australian Gas Association Conference in the early 1990s. Around 1986 John Joyce (of Bowin Cars fame), an influential Australian inventor, first learned about oxides of nitrogen (NO x) and their role in the production of smog and acid rain.