A thermal-hydraulic test loop was designed and built to provide measurements that
can be used in the analysis of long length HTS cable systems. A schematic of the simulated
HTS cable test apparatus is shown in FIGURE 3. It was built by Eden Cryogenics in Plain
City, Ohio. Liquid nitrogen can be circulated through the test loop in either a counterflow
or parallel flow cooling arrangement. The distance between bayonet flanges is 4.7 meters.
The length of the flow path from the inlet flange to the far end where the flow turns around
in the counterflow arrangement is about 6.2 meters. There are five connections on the left
side. Two of the connections are for the liquid nitrogen inlet and outlet for counterflow
testing, two for instrumentation (thermometer) connections, and the last feedthrough is for
the electrical heater connections.