Transcript The I2 Air Fluid method for the elimination of bio

The I2 Air Fluid method for the elimination
of bio-fouling in heat exchangers.
The Problem
Heat exchangers are the heart of any cooling system found in industry. They are found
in many different industries and in many different configurations and styles. Their
purpose is to transfer the heat from the warm water coming from a cooling apparatus;
chiller or air conditioner, to the cool water coming from a heat dissipater; geothermal well
or cooling tower.
This is achieved by having concurrent streams run through conduits that are side by side
and separated by thin metal walls. As the warm water from the cooling mechanism
comes in contact with the metal wall separating it from the cooling water from the
dissipater it transfers its heat through the metal and into the cooling water where it is
dissipated into either the atmosphere or diffusion well.
Heat exchanger efficiency and integrity is reduced when the plates are covered by bio
film. This gelatinous film causes a reduction in heat transfer through;
Occluded space which increases temperature and pressure through decreased flow
within the geothermal or cooling tower side of the heat exchanger.
Thermal insulating matter on the plates impedes heat transfer.
Pitting corrosion on plate surfaces reduces plate heat transfer coefficient.
This increases temperature within the coolant water to the chiller.
Heat
transfer
Temp.
Heat
transfer
Temp.
Temp.
Temp.
Flow
Flow
Corrosion caused
by bacteria.
Heat
transfer
Heat
transfer
Inlet PSI
Inlet PSI
The APF protocol is used to clean the interior surfaces
of the heat exchanger of existing bio-film.
It is a once a month procedure that requires approx.
one hour per month labor time and no disassembly of
the exchanger.
It consists of:
Voiding the exchanger of any
standing water within the exchanger through the
introduction of air using the APF manifold.
Introducing the I2 AFI cleaning solution.
Allow for continuous agitation.
Liquefaction of bio-film.
Removal of cleaning solutions.
Start of normal water flow
The I2 infused air molecule
eliminates free floating bacteria
and bacteria resident in existing
biolms.
The bacteria is
destroyed.
Iodine is drawn into
the cell and key
amino acids in the
respiratory chain are
broken down.
The cell wall is
exposed continually
to new low dose
iodine within the air
bubbles.
Throughout the month, the
plate walls are continually
bathe in low dose I2 bubbles
which keep bio-films from
forming in a few ways.
Turbulent bubbles lift
and dislodge biofilm.
Iodine liquefies biofilm.
Bubbles prevent
planktonic bacteria from
adhering to plate
surface.
The continual profusion of I2
infused bubbles keep the plates
clean, heat transfer at optimum
and then continue on to the
diffusion well screens and
cooling towers where bio-film is
eliminated at those sites.
The results!
Heat exchanger after 8
months of protocol.
Diffusion well screens
after 8 months?
“Hi Mike,
We have been running one 300 GPM supply well. We have left
all 3 diffusion wells open. Each diffusion well has a
capacity of 300 GPM. In order to determine if all 3 diffusion
wells are working properly, we turned two off at a time
so that we tested each diffusion well by itself to ensure that it
was taking 300 GPM. All 3 took the 300 GPM of water
without increases in incoming or outgoing pressure at the heat
exchanger. I took that to mean that all 3 diffusion
wells are working properly.”