Rapidly escalating electrical rates.
Peak demand charges.
Refrigerant restrictions and compliance.
Environmental responsibility.
For those concerned about all of these issues - and
who isn't today - absorption provides a viable alternative to
the traditional electric chiller.
Cost Effective and Environmentally Responsible.
Absorption chillers not only deliver efficient, continuous
cooling with minimal use of electricity, they also use water as
the refrigerant, not the fluorocarbon refrigerants used by mechanical
vapor compression chillers. Yet, they can be used in the same
wide range of settings - hospitals, schools, libraries, retail
facilities, office buildings, industrial processing, and more.
Heat-Drive Cycle.
The basic absorption cycle, while similar to vapor
compression in that both employ an evaporator to vaporize refrigerant
and a condenser to return the refrigerant to its liquid state,
does differ in its method of "compression." Absorption
utilizes a thermal or chemical process which takes
place in the absorber and generator section of the chiller. In
the absorber, a lithium bromide solution absorbs low-pressure
refrigerant water vapor produced in the evaporator. Operation
in a deep vacuum causes the water to evaporate at low temperature,
providing the refrigeration effect necessary to produce chilled
water. The now diluted lithium bromide solution is pumped tot
he generator where heat is added to boil off the refrigerant,
supplying vapor to the condenser. Refrigerant liquid returns to
the evaporator while reconcentrated solution returns to the absorber
to complete the cycle. Depending on configuration, reconcentration
can occur in one or more stages.
A Money-Saving Alternative Energy Choice.
Absorption eliminates high electric costs and demand/ratchet
charges because it uses economical natural gas, steam, hot water
or various forms of waste heat as an energy source.
A life-cycle cost analysis, which considers purchase,
installation, maintenance, and operating costs, often shows that
absorption chillers are less expensive to own the electric chillers.
What's more, because they fall under the "gas cooling"
classification, absorption chillers typically qualify for substantial
utility rebates and incentives in many areas of the country -
either to help reduce peak consumption of electric power, or in
an effort to utilize abundant natural gas reserves in summer months.
Quiet, Reliable, and Easy to Maintain.
Relatively few moving parts make absorption chillers
inherently reliable and less subject to mechanical failure than
vapor compression chillers. You'll save time and money on service
and inspection. Low sound and vibration levels allow installation
close to occupied spaces, even on upper floors, without compromising
occupant comfort.
Carrier Sets the Standard
Again.
Over half a century ago, Carrier Corporation began
intensive research and development efforts on the absorption-cooling
cycle that led to the first commercially manufactured units for
large tonnage applications. Today, Carrier continues to lead the
way with a variety of absorption chiller products and ongoing
development of existing and new products.
Cost-Effective Cooling.
The Carrier 16JT double-effect high-pressure steam
chiller incorporates both a high- stage and low-stage generator,
resulting in two stages of solution reconcentration. In this configuration,
the low-stage generator acts as the condenser for the high-stage
generator, increasing unit efficiency by over 70% as compared
to a single-stage unit. High-efficiency operation with steam rates
of less than 10 lb/hr-ton provides lower operating costs. And
with today's increased emphasis on operating cost and efficiency,
the 16JT is a winner in anyone's book.
An Extensive Capacity Range.
Spanning a 100- to 1700-ton nominal capacity range,
the 16JT assures a perfect match for any building's cooling requirement
and system configuration. Choose from 31 model sizes with various
options and accessories.
For New or Retrofit Applications.
More and more, cost-conscious owners and operation
managers are replacing aging electric chillers or single-stage
units. In both retrofit and new applications where access is tight
and space is limited, the option of two piece shipment makes rigging
and installation faster and easier.
16JT Features | Benefits |
CYCLE-GUARD Concentration Control System | Prevents crystallization by taking corrective action prior to an over concentration condition developing. Allows operation at reduced cooling water temperatures. |
Hermetic, Self-Contained Pumps | Eliminates need for external cooling and lubrication. Exceptional reliability with 5-year recommended inspection interval. |
90-10 CuNi U-Tube Generator | Tubes allowed to expand freely to minimize risk of tube failure. |
Motorless Purge System | Continuously removes non-condensibles during unit operation. Noncondensibles stored externally. |
Non-Clogging Spray Heads | Uniform spray distribution enhances heat transfer and efficiency. Corrosion-proof material. |
Hinged Water-Boxes | Allows easy access for tubeside cleaning and maintenance. |
Epoxy-Coated Waterboxes | Protects tubesheet and waterbox from corrosion damage. |
AnSI Flanged Waterbox Nozzles | Provides easy connection to system piping. |
59F Cooling Water Temperature | Allows operation down to 59F without need for tower bypass. |
Low Noise/Vibration Level | Typical 75 dBA sound level allows installation near occupied spaces. |