Baking & Snack - May 2018 - 107
prices while costing about the same investment as steam.
"In new plants where capital cost of steam boilers, piping, and infrastructure is required, heat recovery provides a near immediate payback - ROI typically under
12 months with a several million-dollar system," Mr.
Houtz said. "That's a no brainer."
Mike Anderson, AMT's sales manager, suggested assigning a dollar number to carbon emissions. "If you're
capturing 1,000 tons of emissions a year at $50 a ton,
that's $50,000 in credit toward heat recovery and reducing carbon footprints," he said.
To save energy, Reading Bakery Systems (RBS) offers
air-to-air exchangers that preheat the combustion air
reintroduced into the oven. "We also use lighter-weight
oven belts to help reduce fuel usage," said Tremaine
Hartranft, RBS director of engineering. "The oven belt
absorbs a significant amount of heat during the baking
process as it cycles through the oven."
With oven burners, colors paint a story about emissions. In 2017, Flynn Burner's InfraRed-Ribbon Hybrid
Burner received an American Society of Baking
Innovations Award for ecodesign and sustainable technologies. The hybrid burner combines the standard blue
flame burner with the low nitrogen oxide (NOx) properties of the infrared (IR) burner. Bakers can run blue, IR
or both flames at the same time.
"By combining the properties of these two types of
flame, we maintain the traditional blue flame, reduce
the NOx and reduce the gas consumption," said Simon
Walker, vice-president of Flynn Burner. "Ultimately, we
will be able to switch between blue flame and infrared
from a recipe on the HMI screen and be able to customize an oven on-the-fly to suit the product." Flynn can fit
their hybrid burners on new or existing ovens.
Mr. Walker pointed out that IR burners alone cannot
bake everything effectively as the heat will penetrate the
product more than normal heat energy. As a result, IR
appears better suited for cracker and similar snack type
products, though Flynn is gathering data for baking
breads and rolls. Flynn also offers EcoZone, which automatically adjusts the blue flame burner's air-to-gas ratio
to reduce NOx and increase efficiency.
NFPA IS REVISING OVEN CODE
FAR END FLAME DETECTION IS NOT THAT FAR AWAY!
NFPA 86 2019...A line burner, pipe burner, or radiant burner with flames
propagating 3 ft (1m) or longer shall have at least one flame detector installed to
sense burner flame at the end of the assembly farthest from the source of ignition.
As the new code is enacted, take advantage of Flynn's 30 years of reliable and
trusted electrode designs. How will it affect you? Call us, we are here to help.
225 Mooresville Boulevard, Mooresville NC 28115
704.660.1500 * flynnburner.com
FLYNN - WORKING ON TOMORROW TO HELP YOU OUT TODAY
www.bakingandsnack.com / May 2018 Baking & Snack 107