The complete form of ITUS is the Integrated Thermal Utility System. This system increases the energy efficiency of every energy-dependent piece of equipment and reduces its cost. This system is eco-friendly. The ITUS started in the 1960s and has operated for more than 60 years. The ITUS process is transferred directly from one process stream to the other in a single heat exchanger, and the two streams need to be close to each other without any danger if the streams mix in case of a leak.
The ITUS system technique works in a sequence.
In the first stage, the technology is optimized.
In the second stage, the heating procedure is integrated when the optimal steam conditions, like flow rate and temperature, are identified.
An integrated thermal utility system is used in energy-related applications such as carbon capture in power plants.
An integrated thermal utility system is also used in a distillation column.
In refineries, the heat from several streams is preheated to be utilized through ITUS.
In preheating, chlorine dioxide and mill water are used in chemical pulp mills.
In preheating, feed gas and naphtha into steam reformers.
Column integration in multistage distillation.