| The gas mixture is pressurized by a compressor to a pressure less than 750 psia, and preferably less than 420 psia, for safety reasons, and supplied to a heat exchanger. |
| Return gas flows back through the heat exchanger to pre-cool the incoming high pressure gas mixture. |
| Ion exchange is a reversible exchange of ions between a solid ion exchanger and a liquid solution. |
| At the top is a 50m high radiant heat exchanger to cope with cooling loads. |
| Some species, such as bigeye tuna, utilize the heat exchanger only when they enter colder water. |
| The draincock assembly includes a drain for draining fluid from the heat exchanger. |
