What are ice bank model C tanks?

Ice Bank model C tanks are second generation thermal energy storage. They come in different sizes to accommodate differing space constraints and offer a significant benefit— tanks can be bolted to each other due to their modular, internalized main headers. That means less distribution piping is needed.

What is an ice bank?

Ice bank or accumulator/storage consists of a tank in which ice is stored, stored and maintained for a period of time, and then melted and used in another period. There are two main advantages to using this type of system: • Where cooling needs vary throughout the day, a smaller chiller can be used.

How do ice bank tanks work?

Each tank contains several thousand feet of small diameter polyethylene tubing arranged in coils. The coils are immersed in water, which nearly fills the shell of the tank. The coils are also manifolded together, resulting in two 4-inch piping connections between the ice bank tank and the remainder of the system.

How does ice bank work?

The rest of the tank space is filled with water. When cooling is required, the ice water is pumped from the bottom of the tank to the system and exchanges heat in a plate heat exchanger with a chilled water. When it returns to Ice Bank, it is forced to turn around the ice.

How long does it take to charge an ice bank tank?

A full charging cycle of an Ice Bank tank takes about 6 to 12 hours, depending upon the job criteria. During the peak-load discharge cycle the following day (see Discharge Cycle), the glycol solution leaving the chiller is 52°F, where chiller operation is more efficient than a conventional chiller systems’ requirement of 44°F.

How do I design a thermal ice storage system?

Select either external melt or internal melt as the basis of design of the thermal ice storage system. Most thermal ice storage system designs will be for partial storage. However, full storage should be considered in areas where energy supplies are limited or very expensive.