BlueStream for Power Plants

BlueStream for Power Plants

Water scarcity, water curtailment and environmental impact are all challenges that face many Power Plant operators. Water-cooled systems do a great job of efficiently handling a plant’s high heat-rejection requirements but with continuing droughts and global warming, the cost of makeup water used in cooling towers continues to rise and it’s continuous unlimited availability is no longer assured. The Johnson Controls® BlueStream™ Hybrid Cooling Technology lets you manage both natural resources and financial resources with tremendous efficiency. It is equally cost-effective when building or retrofitting a power plant that is experiencing water resource constraints.   

Johnson Controls® BlueStream
Hybrid Cooling Systems
In Power Generation Plants.

Introducing The BlueStream™ Hybrid
Cooling System
The demand for energy continues unabated,
placing extreme demands on utilities
and commercial industries to keep pace,
requiring highly efficient power generation
units.
Water-cooled systems do a great job of
handling the high heat-rejection requirements of a power
generation unit. Unfortunately, in many regions, continuing
droughts and global warming are limiting the availability and
raising the cost of makeup water used in cooling towers.
Cooling tower systems also generate a large wastewater
stream to mitigate the buildup of solids in the circulating
condenser loop, an issue when municipalities limit allowed
wastewater discharge. Permitting can be a major issue
blocking new installations in water-constrained areas.
The alternative to using an air-only cooling system can
be cost-prohibitive, as it requires massive units that are
considered less effective than water cooled systems for heat
rejection. What’s more – they often
require plant derates on the hottest days,
when electrical demand is at its peak.
Fortunately, there’s a better solution:
a BlueStream hybrid cooling system
that optimizes the use of two cooling
technologies in a single operating system. Used in conjunction
with a traditional cooling tower, the BlueStream hybrid cooling
system can reduce water consumption by up to 80%. It is
highly effective across a vast range of weather conditions,
as it automatically modulates to utilize the most efficient
combination of water- and air-cooled systems (both individually
and simultaneously) in response to changes in temperature and
energy and water prices. The system’s modular design is highly
scalable, with the ability to add multiple units in parallel to
handle the largest power plants. Key core technology within the
BlueStream hybrid cooling system is the Thermosyphon cooler,
a dry-heat rejection unit designed to work as a complement to
your cooling tower system.

The BlueStream hybrid cooling system lets you manage both
natural and financial resources with tremendous efficiency. It
is equally cost-effective when building a new power plant or
retrofitting a plant experiencing restricted water resource issues.
Optimized Efficiency:
The BlueStream Hybrid Cooling System
At Johnson Controls, we are passionate about water
conservation issues. Finding new ways to be more efficient
in the use of this precious natural resource is a priority for us
and the customers we serve. Our patent-pending BlueStream
hybrid cooling system reduces water use by as much as 80%
while maintaining peak plant output at demanding summer
design conditions.
The BlueStream hybrid cooling system adds a dry cooling
system to your existing wet system, then coordinates the
operation of the two for optimum efficiency, utilizing wet
cooling when it’s hot and dry cooling when it’s not. Intelligent
controls allow a combination of the two to run simultaneously
in all weather conditions between the two extremes.
Its modular design allows this system to be scaled up
to handle the largest of facilities in the most extreme
environments. The system utilizes the Thermosyphon cooler,
a dry-heat rejection unit specifically designed to be used
in an open cooling tower loop or as a freeze protected
closed circuit cooler. Refrigerant circulates naturally through
the Thermosyphon process, with no need for a pump or
compressor. Freeze protection is accomplished by controlling
the refrigerant flow. This system is designed for low
maintenance, with an easily cleanable low pressure drop
heat exchanger.
Additional advantages include:
 Highly efficient contact with open cooling water
Low waterside pressure drop (1-4 psi)
 A “W Coil” 12-fan design that allows minimal spacing
between adjacent units, reducing plan area requirements
 Smaller installation space and lower relative cost compared
with those of competitive units
Compatibility with an existing cooling water loop is easily
achieved, as evaporator tube metals can be cost-effectively
substituted at the design phase before manufacturing.
Alternative metals include CUNI, stainless steel or titanium.

Qinhao Zhan

HVAC&R Engineer

Refrigeration and Process Systems

China Refrigeration (York by Johnson Controls)

Mobile:+86 13818154378  18625150627

QQ:    826554493

862417098

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