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Unistat Hybrid

High performance industrial solutions

Large scale pharmaceutical and chemical manufacturing plants traditionally use a centralised system of heating and cooling with inaccurate temperature control and a restricted temperature range.

The Unistat Hybrid allows improvements of existing temperature control solutions by combining them with a hydraulically sealed temperature control system from the Unistat range. The advantage of the Huber Unistat Hybrid system is the partial modernisation of an existing central heating and cooling system, as a result an expensive and time consuming complete renovation of the system in no longer required. The Unistat Hybrid system increases the present cooling and heating power and expands the temperature range in already existing systems. The Unistat Hybrid ensures fast, precise temperature control for the entire chemical engineering process.

Advantages of Unistat Hybrid:

Higher heating and cooling power through use of existing resources
such as steam, cooling water, liquid Nitrogen etc.

Temperature range extension with existing systems

Highly accurate control of the process temperature

Reliable compensation of thermal reactions

Reasonably priced modernisation of existing systems

Minimises expensive and time consuming system replacement exchange





There are four methods which can be used to deploy existing energy sources:

Method 1:
The heat is transferred from the steam to the thermal fluid through the external heat exchanger. If necessary, the Unistat can raise temperatures up to +400 °C.

Method 2:
The use of electrical heaters is inadvisable because of the high cost of consumed electricity. We consider electrical heating to be limited to 200 kW, because of high installation (infrastructure) and running costs.

Method 3:
The cooling system works in a similar method to system 1; cooled heat transfer fluid (down to -20 ºC) is transferred from the plant chiller through the external heat exchanger, and lower temperatures (-90 ºC … -120 ºC) can be achieved with the Unistat. If required, Huber can supply a powerful chiller with a cooling capacity of up to 400 kW @ 0 °C.

Method 4:
Liquid nitrogen enters the external (LN2/thermal fluid) heat exchanger conducts cooling capacity at low temperatures. The Unistat controls and regulates the dosing of nitrogen into the heat exchanger. The Unistat controls all systems (steam module, chiller, nitrogen) automatically and monitors reactor temperature by means of an external Pt100 sensor.



Installation options:



System 1
The Unistat® (left) and external heat exchanger unit (center) connect to the reactor jacket (right). The Unistat® thermal control system and external heat exchanger unit is connected to the reactor jacket. The heat transfer oil flows through the Unistats®, heat exchanger and reactor jacket.





System 2
Complete solution: The Unistat® Hybrid thermal control system with external heat exchangers for the various energy sources serves for an optimum combination. The individual external energy sources (steam, cooling water, liquid Nitrogen) are precisely controlled from the Unistat® and the reactor temperature is monitored using an external Pt100. Depending on the application, the heat exchanger can be built into the Unistat®.
 
 

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