4168 — The Knitted Metal Fiber Burner: A New Generation of Surface Combustion Material for Radiant Heat and Low NOx Applications
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- ASHRAE
The demand for efficient, clean energy has encouraged wider use of natural gas and a renewed interest in surface combustion. The sintered metal fiber burner is a permeable surface medium for surface combustion of premixed gas and air. Its potential of handling radiant modes of up to 5,000 kW/m2 (1.6 million Btu/h·ft2) allows for a powerful radiant flux with efficiencies up to 60% in a very compact and durable design. It has found ready acceptance in applications such as drying, curing, baking, grilling, and other processes where direct radiant heat is an immediate benefit. Now, a new generation of metal fiber burners has been developed: the knitted metal fiber burner. This new type of burner combines the excellent combustion performance of the sintered mat with the advantages of a textile. It is flexible, easy to mount, and offers total thermal expansion control. It handles a span of firing intensities from 100kW/m2 (32,000 Btu/h·ft2) in radiant mode up to 5,000 kW/m2 (1.6 million Btu/h·ft2) in blue flame mode. This span of outputs is achieved with very low NOx (less than 20 ppm at 0% O2) and CO (less than 30 ppm at 3,500 kW/m2 [1.2 millions Btu/h·ft2] combustion intensity at 0% O2) emissions. The easy and compact burner design allows for immediate applications in fire tube boilers, steam generators, water heaters, hot air generation, and process heaters.
Units: Dual
Citation: ASHRAE Transactions, 1998, Vol 104, pt. 1A, San Francisco
Product Details
- Published:
- 1998
- Number of Pages:
- 7
- File Size:
- 1 file , 140 KB
- Product Code(s):
- D-7831
