|
|
|
ICE CHILLER® Thermal Storage Units
Overview ·
Why Ice Storage ·
Selection ·
Engineering Data ·
Specifications ·
Example Installations ·
Save on First Cost and Operating Cost
Downloads: Brochures · Product Reports · Project Reports
District Cooling Example Installations
|
Ice
Thermal Storage - A Great Idea with Many Applications
The success
of ice thermal storage in office building applications has
received a great deal of publicity and exposure. However,
ice thermal storage has been successfully implemented in all
types of buildings for many of the same reasons it works in
office buildings: lower first cost, lower operating cost and
the ability to eliminate CFCs.
The use of low temperature
water from the ice storage allows savings in piping, pumps,
and air handling equipment. An ice storage system with supply
and return water temperatures of 34°F (1°C) and 54°F
(13°C) versus a traditional system using 44°F (7°C)
to 54°F (13°C) requires half of the water flow, 1/8
the pump BHP and smaller pipes. In addition, low supply temperatures
allow for smaller airside coils. When low temperature air
distribution (42°F (6°C) supply air versus traditional
55°F (17°C) air supply) is also used, additional savings
are realized from smaller ductwork, smaller fans and increased
useable space. Operating costs decrease when the system is
designed to take advantage of low night time electrical rates
and has the flexibility to adjust to changes in peak electrical
rates with deregulation. Demand charges can make daytime energy
costs as much as six times greater than night time energy
costs. With the switch over to deregulation, on-peak daytime
energy rates are expected to increase significantly while
night time rates are expected to remain flat or decrease.
These attractive first cost and operating cost benefits are
being realized in a wide variety of building types, as exemplified
by the installations listed below. |
| Convention
Centers |
|
Comfort-Link Plant 1
Baltimore Convention Center
Baltimore MD
Ice Thermal Storage
|
|
Sports
Complexes
Sports
Complexes are ideal applications for ice storage due to large
peak loads of short duration. |
Miami
Heat Basketball Arena
Miami FL
Ice Thermal Storage
17,280 Ton Hours (60,756 kWh)
1,439,420 lbs. of ice (629,921 kg) |
Northwind
Houston
District Energy Center Union Station, Houston TX
Ice Thermal Storage
44,000 Ton Hours (154,704 kWh)
3,665,200 lbs. of ice (1,662,535 kg)
also Cooling Towers and Evaporative Condensers |
| Hospitals |
John Peter
Smith Hospital, Fort Worth TX
Ice Thermal Storage
14,800 Ton Hours (52,037 kWh)
1,232,840 lbs. of ice (559,216 kg)
also Heat Exchangers and Cooling Towers |
| Colleges
and Universities |
University
of Pennsylvania, Philadelphia PA
Ice Thermal Storage
22,000 Ton Hours (77,352 kWh)
1,832,600 lbs. of ice (831,267 kg) |
Stanford University, Palo Alto CA
Ice Thermal
93,200 Ton Hours (7,763,560 kWh)
327,691 lbs. of ice (3,521,551 kg) |
| Hotels |
Hotel LaReserve, Bellevue Switzerland
Ice Thermal Storage
145 Ton Hours (510 kWh)
12,080 lbs. of ice (4,580 kg)
also Evaporative Condensers |
Hotel Saphir, Pontauct-Combault France
Ice Thermal Storage
210 Ton Hours (739 kWh)
17,500 lbs. of ice (7,938 kg)
also Cooling Towers and Heat Exchangers |
|
Supermarkets
Supermarkets
have a much higher load during the day than at night, just
like office buildings. Ice storage reduces utility bills.
The low relative humidity of the air produced with low temperature
water reduces or eliminates the need for reheat. |
Quinsworth Crazy Prices, Dublin Ireland
Ice Thermal Storage
484 Ton Hours (1,702 kWh)
40,920 lbs. of ice ( 18,561 kg) |
| Airports |
Midway Airport, Chicago IL
Ice Thermal Storage
14,000 Ton Hours (49,224 kWh)
1,166,200 lbs. of ice (528,988 kg)
also Evaporative Condensers and Cooling Towers |
| Shopping
Malls |
Cosmo Square, Osaka Japan
Ice Thermal Storage
29,300 Ton Hours (103,019 kWh)
2,440,690 lbs. of ice (1,107,097 kg) |
|
Railway
Stations
Ice storage solved an electrical
supply restriction problem. |
Gare St. Jean, Bordeaux France
Ice Thermal Storage
552 Ton Hours (1,941 kWh)
46,000 lbs. of ice ( 20,865 kg)
also Heat Exchangers |
|
|
|
