ILTEC Technology—New Pathways Towards Safe and Effective Cooling
689
exists, which is a technology not suitable for water as cooling medium. Under these
circumstances, primary energy resources can be saved.
Heat Removal and Specific Heat Capacity
Considering properties like heat capacity, heat transfer coefficients, Reynolds number, and Prandtl number, it may be assumed that the amount of heat removed is less
compared to a water cooled system. But comparing an IL-B2001 cooled application
with the same application cooled by water, the entire system has to be taken into
account. From industrial scale trials, it is known that the same amount of heat can
be removed, either with water or with IL-B2001.
High Electrical Conductivity
Since the ionic liquid is per definition a salt and hence consisting of cations and
anions the electrical conductivity is several orders of magnitude higher compared to
water. This restricts the application of substituting water within induction furnaces
or wherever a minimum electrical conductivity is required. To overcome this issue
within induction furnaces, a special design of the cooling circuit has to be considered.
No Altering, Non-consumable
In contrast to other cooling media, IL-B2001 shows no ageing phenomena whenever
the cooling circuit is closed, and the liquid does not get in contact with water or open
atmosphere. This makes it a non-consumable good.
Hardware
In principle, the hardware consists of a tank, heat exchangers, and pumps as well
as the necessary piping and instrumentation. The tank is filled with IL-B2001; the
freeboard volume above the liquid level is purged with nitrogen in order to prevent
hydration of the liquid through humidity in the air. Two identical pumps (one for
redundancy) guarantee the flow of the IL through the entire pipe system, and two
heat exchangers (one for redundancy) remove the heat into the secondary cooling
circuit. Numerous measuring devices for temperature, flow, pressure, and differential
pressure throughout the entire system guarantee fast leak detection. A variety of
valves, adjusting wheels and shut-off devices, provide the necessary flexibility for
all different operation modes. Assembly, installation, and start-up on site can be
conducted within a few days (Fig. 5).
689
exists, which is a technology not suitable for water as cooling medium. Under these
circumstances, primary energy resources can be saved.
Heat Removal and Specific Heat Capacity
Considering properties like heat capacity, heat transfer coefficients, Reynolds number, and Prandtl number, it may be assumed that the amount of heat removed is less
compared to a water cooled system. But comparing an IL-B2001 cooled application
with the same application cooled by water, the entire system has to be taken into
account. From industrial scale trials, it is known that the same amount of heat can
be removed, either with water or with IL-B2001.
High Electrical Conductivity
Since the ionic liquid is per definition a salt and hence consisting of cations and
anions the electrical conductivity is several orders of magnitude higher compared to
water. This restricts the application of substituting water within induction furnaces
or wherever a minimum electrical conductivity is required. To overcome this issue
within induction furnaces, a special design of the cooling circuit has to be considered.
No Altering, Non-consumable
In contrast to other cooling media, IL-B2001 shows no ageing phenomena whenever
the cooling circuit is closed, and the liquid does not get in contact with water or open
atmosphere. This makes it a non-consumable good.
Hardware
In principle, the hardware consists of a tank, heat exchangers, and pumps as well
as the necessary piping and instrumentation. The tank is filled with IL-B2001; the
freeboard volume above the liquid level is purged with nitrogen in order to prevent
hydration of the liquid through humidity in the air. Two identical pumps (one for
redundancy) guarantee the flow of the IL through the entire pipe system, and two
heat exchangers (one for redundancy) remove the heat into the secondary cooling
circuit. Numerous measuring devices for temperature, flow, pressure, and differential
pressure throughout the entire system guarantee fast leak detection. A variety of
valves, adjusting wheels and shut-off devices, provide the necessary flexibility for
all different operation modes. Assembly, installation, and start-up on site can be
conducted within a few days (Fig. 5).