Huber Kältemaschinenbau offers a solution for precise temperature control of large-volume production reactors of more than 10,000 litres. The innovative Unistat hybrid system allows economical optimization of existing heating and cooling systems. Temperatures down to -125 °C or up to +400 °C can be realised.

The exact temperature is critical in production processes with chemical reactions. Therefore, selecting a suitable heating and cooling solution is important. Chemical and pharmaceutical production systems often use existing central heating and cooling systems to control the temperature of production processes. However, there are several disadvantages with this method: It usually leads to incorrect results and, above all, the temperature range is limited.

To optimize existing systems, the new hybrid technology integrates a Unistat, a hydraulically sealed temperature control system. This allows the temperature in reactors of a large filling volume to be controlled exactly. To achieve the required temperature, the hybrid system utilizes energy media such as steam, cooling water, or liquid nitrogen that already exist in the production building. The integrated Unistat circulation thermostat ensures a controlled energy supply, and precisely controls the system to the temperature required in the reactor.

In practice, this means rapid heating of large-volume reactors with steam, and quick cooling with liquid nitrogen. Due to its high energetic density and excellent heat transfer, steam, for example, is an excellent heat carrier. The Unistat hybrid system makes optimum use of this potential. An external heat exchanger transfers the thermal energy of hot steam into the thermal fluid. This permits a temperature as high as +400 °C to be reached. Lower temperatures are reached with liquid nitrogen. In combination with the Unistat, temperatures down to -125 °C can be reached and still be safely controlled. The Unistat rationally controls the utilization of the energy resources.

Advantages of this technique are: High control accuracy, enhanced temperature ranges, increased heating and cooling performance, and reliable compensation of thermal reactions. The Unistat hybrid system improves the production output of large-volume plants. Connecting with existing resources is a simple solution to increase efficiency and profitability of systems.

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