The optimal solution for temperature control in technical applications

Continuous and high-precision temperature control is important in the temperature control process. This is ensured by sophisticated control electronics in the temperature control system, which monitor and control the process in the reactor and the internal processes in the system in order to quickly adjust a control variable to the target value in the event of changes – with as little overshoot as possible.

The control electronics are an important prerequisite for high consistency in temperature control applications. One criterion for its evaluation is the effort required for parameterization. Optimal temperature control systems merely require a target value to be entered. During the actual temperature control process, the control electronics then ensure that the PID control parameters are complied with via ICC algorithm (Intelligent Cascade Control). The PRESTO™ units ensure exceptional accuracy and temperature stability up to ± 0.01°C.

Robustness with regard to ambient conditions also plays an important role in process reliability. Sample calculations are often based on a room temperature of +20°C, which rarely corresponds to reality in practice. Even when used in a miniplant, the system is subject to higher requirements.

Temperature control systems are also exposed to critical situations during the summer months. Units that can handle wider tolerance ranges are an advantage here. PRESTO™ units can be operated up to an ambient temperature of +40°C. Tap water for cooling can also be up to +30°C in this model series without the units switching off automatically. If the temperature in the reservoir becomes too high, a two-stage de-gas mode takes effect automatically.

One unit-dependent aspect concerns the cooling technology of the unit itself: Highly dynamic temperature control systems are available with air or water cooling. Air-cooled units offer independent choice of location as they do not consume water. Waste heat dissipation into the room may need to be taken into account, however. This is much less important for water-cooled units. They require a connection to a cooling water line. A sturdy and wear-free condenser should also be integrated in the unit. This ensures that contaminated cooling water does not block the heat exchanger.

The PRESTO Whitepaper is available here.