Chiller Details - Salvex
Chiller Details - Salvex
Chiller Details - Salvex
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YIA<br />
YORK IsoFlow<br />
Absorption Liquid <strong>Chiller</strong><br />
COOLING CAPACITY<br />
422 to 4840 kW<br />
Environmental Considerations<br />
Traditional electrically driven chillers generally use halogenated<br />
refrigerants, which can cause ozone depletion and have a high global<br />
warming potential. The YIA range uses the most environmentally safe<br />
refrigerant - WATER. The absorbent is lithium bromide. That<br />
water/lithium bromide solution has no global warming effect. It is noncaustic,<br />
non-toxic and non-flammable.<br />
In waste heat applications the YIA chillers could minimize the carbon<br />
dioxide emissions of the a complete energy system because no fossil<br />
energy carrier is used.<br />
By using the environmental friendly ADVAGuard 750 inhibitor the<br />
internal corrosion rate and hydrogen generation is up to 8 times less<br />
than using lithium molybdate.<br />
General<br />
The YORK IsoFlow Absorption <strong>Chiller</strong> is completely factory packaged,<br />
including upper and lower shell assemblies, solution heat exchanger,<br />
hermetic solution and refrigerant pumps, microprocessor controls and<br />
all interconnecting piping and wiring. All control and safety devices<br />
are mounted and wired. The purge pump, flow switches, modulating<br />
valve and lithium bromide charge are shipped loose.<br />
The vessels and components are, as far as necessary, manufactured<br />
and approved according to valid codes.<br />
Hot water units<br />
Hot water units can operate with entering water temperature from 80<br />
to 128°C.<br />
YIA<br />
The YIA Absorption <strong>Chiller</strong> introduces a<br />
revolutionary system of unit controls and<br />
mechanical devices designed to keep the<br />
chiller running in even the most extreme<br />
circumstances. The traditional problem of<br />
crystallisation is overcome by a proven blend<br />
of new and old technology. Additionally the<br />
chiller contains a host of other features<br />
designed to give the unit a long, trouble-free<br />
life. The result: the most versatile, safest and<br />
most reliable single effect absorption chiller<br />
on the market today.<br />
YIA chillers are available from 422 to 4840<br />
kW (from 150 kW with low temperature hot<br />
water) using either low pressure steam or hot<br />
water. With a COP up to 0.72 they are an<br />
economical alternative to usual compressor<br />
water chillers. Especially in using waste heat<br />
the YIA chillers can lower overall system<br />
operating costs.<br />
Applications particularly well-suited to the<br />
YORK Millennium absorption chiller include<br />
the following:<br />
• Cogeneration<br />
• Waste heat recovery from diesel or gas<br />
engine jacket water<br />
• Turbine air inlet cooling<br />
• District Heating and cooling installations<br />
Steam units<br />
Steam units can operate with a steam pressure at generator inlet from<br />
0,2 barg to 0,95 barg. Negative steam supply pressure on special<br />
reqest.<br />
Refrigerant cycle<br />
The YORK YIA high efficiency single-stage absorption refrigeration<br />
cycle uses water as the refrigerant and lithium bromide as the<br />
absorbent. It is the strong affinity that these two substances have for<br />
each other that makes the cycle work. The entire process occurs in<br />
hermetic vessels in a near complete vacuum.<br />
ISN Millenium Control Center<br />
The Millennium control panel combines the very best in chiller<br />
protection with the optimum in system efficiency. As standard<br />
equipment on all chillers it is a major development in absorption<br />
chiller technology, providing the most precise and reliable control and<br />
safety.<br />
Vital chiller operating information is shown on the 40 character<br />
alphanumeric display. All information is in clear language with<br />
numeric data provided in metric or imperial units.<br />
The control panel automatic capacity control automatically varies the<br />
steam flow rate or the hot water flow rate using a fuzzy-logic control<br />
algorithm to maintain the programmed setpoint for the chilled water<br />
leaving temperature in the load range between 10% and 100%.
~70°C<br />
Condenser<br />
~70 °C<br />
~95°C<br />
to~4°C "<br />
Flow Diagram<br />
tc~45°C<br />
Generator<br />
Evaporator<br />
Absorber<br />
ta~35°C<br />
~50°C<br />
Tower Water Out ~37°C<br />
Heat<br />
Medium Out<br />
Heat Medium In<br />
6 °C<br />
Chilled Water<br />
12 °C<br />
~32,5°C<br />
Steam or<br />
Hot Water<br />
Tower Water In ~27°C<br />
Refrigerant (Water)<br />
Steam or Hot Water<br />
Diluted Solution (LiBr)<br />
Concentrated Solution (LiBr)<br />
Tower Water<br />
Chilled Water<br />
Early Warning System<br />
The integrated early warning systems warns before a<br />
safety shutdown of the unit and limits heating input rate<br />
supply until correcting actions had been taken. This<br />
system guarantees a stable operation even in<br />
abnormal operating conditions.<br />
Automatic Decrystallization<br />
Each IsoFlow absorption chiller is delivered with a<br />
protection system that quickly eliminates any minor<br />
crystallization that may occur under extreme conditions.<br />
I the unlikely event of a problem, a control-center signal<br />
immediately opens the stabilizer valve, sending pure<br />
water to dilute the most concentrated solutions in the<br />
machine. Additionally the Automatic Decrystallization<br />
Pipe send hot solution to warm the solution heat<br />
exchanger. This redundancy helps to ensure safe<br />
operation of the unit.<br />
Cooling Capacities<br />
and Physical Data<br />
Hermetic Pumps<br />
The unique construction of YORK's hermetic pumps<br />
ensures low energy consumption and long trouble-free<br />
operation. Service inspections are usually carried out<br />
every 50000 hours. Maintenance of the pumps can be<br />
carried out quickly and easily due to built-in isolation<br />
valves ahead and behind each internal pump.<br />
Dimensions<br />
Cooling mm Operating<br />
Model Capacity 1 Weight kg*<br />
kW Length Width Height<br />
1A1 420 3720 1760 2320 4950<br />
1A2 550 4330 1420 2320 5500<br />
2A3 600 4940 1420 2320 6130<br />
2A4 720 5550 1420 2320 6590<br />
2B1 830 4940 1580 2640 7900<br />
3B2 960 5550 1580 2640 8540<br />
3B3 1090 6160 1580 2640 9490<br />
4B4 1170 6770 1580 2640 10490<br />
4C1 1280 5550 1770 3020 11400<br />
5C2 1440 6160 1770 3020 12260<br />
5C3 1570 6770 1770 3020 13620<br />
6C4 1820 7530 1770 3020 14760<br />
7D1 1990 6160 2110 3540 17890<br />
7D2 2170 6770 2110 3540 19840<br />
8D3 2480 7530 2110 3540 21800<br />
8E1 2790 6870 2290 3840 24110<br />
9E2 3190 7630 2290 3840 26830<br />
10E3 3380 8390 2290 3840 29790<br />
12F1 4040 7630 2480 4240 35550<br />
13F2 4340 8390 2480 4240 39050<br />
14F3 4840 9150 2480 4240 41140<br />
Proven Design<br />
YORK has been manufacturing<br />
single stage absorption chillers<br />
since the late 1950s. With over<br />
3,000 units installed worldwide,<br />
YORK has a level of<br />
experience with the design and<br />
application of single stage<br />
absorbers that is the best.<br />
The proven industrial-grade<br />
design with YORK's renowned<br />
Millennium controls combine<br />
to provide the customer with the<br />
highest level of performance<br />
and reliability available today.<br />
YIA<br />
1<br />
Those values are valid at following conditions<br />
Chilled Water Temperatures (in/out) 12.2/6.7°C<br />
Cooling Water Temperatures (in/out) 29.4/39.4°C<br />
Hot Water Temperatures (in/out) 115/109°C<br />
Saturated Steam Pressure 0.8 barg<br />
Please ask your local YORK-office for other conditions