Process description for the U6 example simulation

The hot oil system is a closed-loop heating system that uses a fired heater as the primary heat source. A makeup line from a storage tank supplies hot oil to the system. Circulator pumps then feed the hot oil to the fired heater, which heats the hot oil to a temperature of 400°C and supplies it to all process consumers. After the heat exchange, hot oil returns to the main line through the expansion tank, which creates a closed loop.

The design requirements are:

• The temperature of the process consumer is 220°C.

• The temperature of the hot oil that returns to the circulator pumps is 100°C.

• The heat transfer fluid is based on DowTherm™ A.