Kelvion’s new more compact ComFinSafety heat exchanger (Image: Kelvion)
Heat exchanger specialist Kelvion has launched a new compact heat exchanger that integrates its double tube safety technology.
The ComFinSafety solution is designed for applications that require high safety levels and where the media properties are significantly different, such as oil cooling by water.
The solution is expected to lead to reduce the footprint of Kelvion components in engine-mounted shell and tube heat exchangers, for example. In addition to the improvement in compactness, the new solution extends Kelvion’s double tube safety heat exchange portfolio in terms of operating costs, while efficiency is improved thanks to enlarged surface through fins.
The product is available in both standardized and customized coolers in the product lines Shell & Tube Double Safety and Transformer Cooling Systems (Transformer Oil Water Coolers).
ComFinSafety ensures reliable separation of media allowing no contamination of both neither the cooling water nor the oil in the system.
The tube system consists of copper outer tubes and inner tubes which can be manufactured from CuNi alloys or stainless steel, with an optional inside coating. Between inner and outer tube there are leakage channels, connected to a leakage detection system which triggers an alarm in the case of leakage. In such a case, one of the tubes would be damaged – the other tube would continue working. The compact fins are made of aluminium or copper. Fin pitches are available in variable configurations. Tube bundles come in diameters of 100 – 600 mm and lengths of 250 – 3,600 mm. The heat exchangers are designed for a pressure of up to 60 bar g and temperatures between -10°C and 200°C. Water, sea water, oil, refrigerants or air can be used as media.
Aside from the marine market, the product’s end-user markets include energy, power grids, transportation, heavy industry and HVAC.