Engineered for maximized EFFICIENCY and fuel cost savings.
Advanced Technology.
Designed for process heating applications such as thermal fluid systems and hot oil heating, the radiation boiler series features a low pressure drop firing head design and low blower motor horsepower requirement for increased efficiencies. Advanced premix technology allows the JOUNICA series to offer ultra-low NOx, low CO emissions and up to 1:10 turndown on natural gas.
METAL FIBER BURNER
characteristic
High efficient
Every new burner (metal fiber burner) design is made with one goal in mind: achieving the highest efficiency and cost effectiveness. Combined with gas adaptive control electronics.
premix technology
Burners that use premix technology in combination with a radiation boiler maximize the efficiency of the heat cell and limit their emission of NOx, CO and CO2.
Low NOx , CO
With the recent enforcement of new emission standards for gas boilers in the world, premix technology offers the perfect solution to manufacturers who need to conform to the new regulations.
Arbitrations
high turn down ratios (>1:10) / extended lifetime / superior resistance to rapid and extreme temperature fluctuations
About the Metal Fiber burner
Metal Fiber Burner (Porous media combustion) offers exceptional advantages compared with techniques involving free flame burners. Porous medium burners are characterized by higher burning rates, increased flame stability, and lower combustion zone temperatures, which lead to a reduction in NOx formation. In addition, they show a very high turndown ratio, low emissions of CO, and are of very small size. In order to optimize the combustion process further and to adapt the burner design, as well as to obtain a tool that allows fast adaptation to new industrial applications:
ADVANTAGES
- Extremely compact
- Suited for longer combustion chambers
- Available in various sizes for all boiler loads
- Reduces significantly the height of the burner relative to the length of the combustion chamber
- High modulation range of 1 to 35 kW/dm2 (dependent upon appliance and dimensions)
- High power outputs of up to 3 MW (bigger sizes available)
- NOx emission level is 7 ppm (blue angel)
- CO emission level is 5ppm (blue angel)
- Compatible with all gases of the first, second and third family
KEY BENEFITS
Metal fiber burner used in premix burner
In recent times premix burners have been applied to gas appliances, primarily in response to regulations restricting combustion emissions. Emission of oxides of nitrogen (NOx), in particular, can be reduced substantially when conventional burner systems are replaced with premix. There is also a secondary possibility – appliance efficiency can sometimes be increased because premix burners are capable of operating at excess air levels lower than those typical of conventional burners.
In premix systems all of the combustion air is mixed with the fuel gas prior to ignition, the actual combustion process is quick and compact relative to partially-aerated systems.
Conventional against premix burner
Compared to conventional (partially-aerated) burners, premix burners are much more sensitive to changes firing rate without commensurate combustion air increase, causes premix flames to burn hotter and concentrate near the burner surface. Increasing excess air, by actual increase of combustion air or by reducing firing rate without combustion air reduction, causes premix flames to become longer and cooler and generally less stable.
The key to understanding premix burner application is to be aware of and control the air/fuel ration – i.e maintain it not too “rich” and not too “lean”. A rich or lean condition can be reached by changing either firing rate or aeration.
Let's be greener
Mandatory emissions levels are obviously a critical consideration when operating a boiler room today. Since the Clean Air Act Amendments of 1990, stiff regulations have been in place to contain pollutant emissions and encourage air cleanup. Understanding our obligations can help ensure you make the correct decisions when it comes to maintaining and improving your boiler room’s efficiency.
with using this type of burner develop leading edge technology to advance our products for tomorrow’s boiler and burner systems. With breakthrough technology, JOUNICA group has attained extremely low emissions levels such as NOx levels below 5 ppm, and CO levels below 1 ppm while maintaining 30 ppm NOx.
