Many applications, such as process cooling, require efficient cooling in winter and during the transitional periods. If the ambient temperature is below the cooling flow temperature, the heat transfer between the ambient air and cold water can be used. This so-called free-cooling of our chillers reduces the power demand – and increases your energy efficiency.
All free-cooling modules are used in combination with our highly efficient QUANTUM Air. In addition to numerous advantages offered by a free-cooling system, you also benefit from our powerful air-cooled series. See for yourself:
Find out more about our QUANTUM Air series here.
We at ENGIE Refrigeration are one of the few manufacturers to cover all variants of free-cooling with our chillers – whether external, integrated or with a thermosiphon function. The prerequisite for free-cooling is that the ambient temperature is below the chilled water temperature. Applications with a chilled water supply temperature in the range of 13 °C are particularly suitable. The advantage: while the compressor of the cooling system is paused during operation, you increase your energy efficiency, reduce your power consumption and reduce costs.
To ensure that we always offer you the best possible solution, we have several system solutions for free-cooling in combination with our chillers in the portfolio. However, they all have one thing in common: they are part of the air-cooled QUANTUM chiller and are integrated mechanically, hydraulically and in terms of control technology. Our cooling technology scores highly in terms of flexibility: the control system of the QUANTUM chiller automatically switches from compression operation to free-cooling operation and back as soon as the operating conditions allow it. Mixed operation is also possible.
If an integrated free-cooling module is an option for you, you will benefit from the following advantages:
The external modules for free-cooling offer you, the operator, the following advantages:
The external free-cooling module is placed on the chiller base frame and is hydraulically integrated.
The thermosiphon function offers you, the operator, several advantages: