|
Ice
Kube Low-temperature
Water-to-Water Heat Pumps
Ice Kube
Systems specializes in
water-to-water heat pumps
used in low-temperature
applications. Geothermal or
ground-source heat pumps are
designed to operate
efficiently with source
(ground) temperatures of
approximately 30 deg. F
(-1 deg. C). The lower the
source temperatures, the
less efficient the heat
pumps.
Ice Kube
Systems has maximized the
efficiency of the
water-to-water heat pumps in
several ways:
 |
Increase the size of the
evaporator and condenser
|
|
Insulate the evaporator
and condenser
|
|
Maximize the efficiency
of the evaporator
|
|
Optimize the size of
other system components
|
| Use
refrigerant designed to
operate at low
temperatures
|
|
Optimize system design |
Ice Kube
Systems
Low-temperature Water-to-Water
Heat Pumps rated in
accordance with ARI/ISO
13256-2
|
Model |
Fluid
USGPM |
Heating
BTUH |
COP |
Cooling
BTUH |
EER |
|
IKS078 |
20 |
56,400 |
4.17 |
76,800 |
26.3 |
|
IKS096 |
25 |
71,300 |
4.20 |
90,100 |
22.2 |
|
IKS144 |
30 |
103,200 |
4.01 |
140,300 |
24.4 |
|
IKS180 |
45 |
126,100 |
4.10 |
168,100 |
25.1 |
|
IKS288 |
60 |
216,000 |
4.07 |
283,700 |
23.3 |
|
IKS450 |
100 |
328,800 |
4.05 |
437,200 |
21.1 |
Heating
capacity rated at 32 deg.
F (0 deg. C) entering fluid
temperature to the
evaporator and 104 deg. F
(40 deg. C) entering fluid
temperature to the building
heating system.
Cooling capacity rated at
53.6 deg. F (12 deg. C)
entering fluid temperature
to the evaporator
(approximately 45 deg. F (6
deg. C) chilled fluid to the
building system)
These
heat pumps are designed
to operate at lower
temperatures than
typical geothermal or
ground-source
heat pumps. They are
designed to operate
efficiently at
temperatures as low as
10 deg. F (-12 deg. C),
and will operate
effectively at
temperatures as low as 0
deg. F (-18 deg. C)
The
efficiency at low
temperatures, combined
with appropriate system
design, makes these
systems very effective
at making ice in hockey
and curling rinks. With
good system design, the
heat pumps will provide
space heating and
domestic hot water for
the entire facility, and
in many cases, to other
nearby buildings.
Ice Kube
Systems
Low-temperature Water-to-Water
Heat Pump Capacities at
Ice Rink Temperatures
|
Model |
Fluid
USGPM |
Heating
BTUH |
COP |
Cooling
BTUH |
EER |
Combined COP |
|
IKS078 |
20 |
44,900 |
4.2 |
34,200 |
11.0 |
7.4 |
|
IKS096 |
25 |
56,700 |
4.3 |
43,300 |
11.1 |
7.5 |
|
IKS144 |
30 |
83,900 |
4.0 |
63.000 |
10.3 |
7.0 |
|
IKS180 |
45 |
101,400 |
4.1 |
76,500 |
10.5 |
7.1 |
|
IKS288 |
60 |
175,000 |
4.1 |
132,300 |
10.6 |
7.2 |
|
IKS450 |
100 |
268,200 |
4.1 |
203,200 |
10.7 |
7.3 |
Rated at
15 deg. F (-9 deg. C)
entering fluid temperature
to the evaporator (the ice)
and 85 deg. F (29 deg. C)
entering fluid temperature
to the building heating
system.
Many large
commercial buildings such as
office buildings, schools,
churches, and many
manufacturing facilities
that require process cooling
can benefit from using
thermal ice storage systems.
The system can be designed
to make ice in storage tanks
at off-peak hours while
heating the building
with energy taken from the
ice. This can effectively
heat a building during the
night while supplying
capacity for the next
day's air conditioning. This
can almost double the
coefficient of performance
of the entire system, when
viewed over a daily charge
and discharge cycle.
Ice Kube
Systems
Low-temperature Water-to-Water
Heat Pump Capacities at
Ice Storage Temperatures
|
Model |
Fluid
USGPM |
Heating
BTUH |
COP |
Cooling
BTUH |
EER |
Combined COP |
|
IKS078 |
20 |
53,600 |
5.0 |
42,900 |
13.7 |
9.0 |
|
IKS096 |
25 |
67,900 |
5.0 |
54,300 |
13.6 |
8.9 |
|
IKS144 |
30 |
99,300 |
4.7 |
78,200 |
12.7 |
8.4 |
|
IKS180 |
45 |
119,600 |
4.8 |
94,700 |
13.0 |
8.6 |
|
IKS288 |
60 |
206,200 |
4.8 |
163,200 |
12.9 |
8.6 |
|
IKS450 |
100 |
313,800 |
4.7 |
247,500 |
12.7 |
8.5 |
Rated at
25 deg. F (-9 deg C)
entering fluid temperature
to the evaporator (the ice)
and 85 deg. F (29 deg. C)
entering fluid temperature
to the building heating
system.
|
|
|
