P RODUCT OVERVIEW
DROPWISE
CONDENSATION
TECHNOLOGY
Reduced Energy Consumption
& Greenhouse Gas Emission
Increased Productivity
(866) 663-7633
Kurita Dropwise Condensation Technology(FPO)
(Dropwise) is a patent-pending technology to
increase operating efficiency and conserve
energy in industrial production facilities. This
technology can be applied without the need for
any additional system equipment. Dropwise is
dosed continuously into the steam line in front of
the target device, creating a water repellent film
on the surfaces. Increasing the water repellency
greatly improves productivity and heat transfer
efficiency. At the same time, steam consumption
is reduced, leading to less fuel consumption and
decreased energy costs. Dropwise is a sustainable
technology that leads to a reduction of carbon
dioxide emissions and supports the development
of an eco-friendly society.
KAI_info@kurita-water.com
www.kuritaamerica.com
K U R I TA’ S O N L I N E D R O P W I S E CO N D E N S AT I O N T E C H N O L O G Y
KURITA AMERICA ADVANTAGE
The steam generated from the boiler releases latent heat when condensing on the
surface of the heat exchanger and stays in a film form as condensed water. It has
been pointed out that since the 1930s that this film-like condensate has a thermal
conductivity of 1/100
or less compared to
the heat exchanger’s
DROPWISE
CONDENSATION
TECHNOLOGY
KEY FEATURES
• Added directly to the
steam, and a hydrophobic
surface is formed inside
the dryer cylinder
• Adsorption of the product
on the metal surface
forms a hydrophobic
film that improves heat
efficiency
• Continuous chemical
injection promotes a
hydrophobic surface
metal material,
which is a significant
factor inhibiting
heat conduction
in the production
process. In response
to this longstanding
problem, the idea
of continuously
removing this water film by increasing the hydrophobicity of the metal surface has
previously existed. However, the technique for maintaining condensation has long
been incomplete. Dropwise has solved this problem.
Reduced Energy Consumption and Greenhouse Gas Emission
• Excellent corrosion
inhibition
Dropwise creates a hydrophobic water-repellent film, which minimizes the
• No capital investment is
required
Heat transfer coefficient drops if there is water film generated on the surface.
• Reliable and proven
chemical treatment for
many kinds of systems but
not limited to paper dryer,
corrugator, press machine,
condenser, evaporator,
and vulcanizer
TARGETED INDUSTRIES
• Corrugated Board
• General Manufacturing
• Power
• Pulp & Paper
thickness of the condensed water film on metal surface of heat exchanger.
Therefore, by reducing the thickness of the water film with Dropwise, heat transfer
resistance is decreased, and required steam quantity is decreased too. Field
results have shown steam consumption is typically reduced by five to ten percent.
Improved Productivity
As stated above, Dropwise improves heat transfer efficiency, which means
increased heat transfer. In cases where a heat exchanger is operated at 100% of
its capacity, without the Dropwise, the only other option to increase production is
to install a larger heat exchanger. However, since Dropwise increases heat transfer
efficiency of an existing heat exchanger, it is expected to generate additional
production capacity without the need to increase the size of the system.
• Tire Manufacturing
(866) 663-7633
KAI_info@kurita-water.com
www.kuritaamerica.com