GEA PHE Systems - successful and innovative
As part of the international GEA Group GEA PHE Systems specializes in the plate heat exchanger business. We are one of the leading manufacturers of plate heat exchangers worldwide.
Partnership makes us strong
Within the GEA Heat Exchangers segment of GEA Group, GEA Ecoflex together with GEA ViEX, GEA WTT, GEA Ecoflex India, GEA PHE Systems North America and GEA EcoServe forms GEA PHE Systems, the center of competence and service for gasketed, fully welded and brazed plate heat exchangers.
Strong individual companies:
GEA Ecoflex India
GEA PHE Systems North America
all work together to form GEA PHE Systems. We have production locations in Germany, the USA, Canada and India. We manufacture gasketed, fully welded and brazed plate heat exchangers for sale in just about every industrial application throughout the world.
Using this link you can download our GEA PHE Systems brochure. And learn more about our company. We are sure you'll find it interesting.
Our service for all brands, across the globe
GEA EcoServe is the leading service specialist for all types of plate heat exchangers. Our services are backed up by 20 years of experience in after-sales & service and by the competence of GEA PHE Systems as an internationally renowned manufacturer of high-performance plate heat exchangers.
With a global network of locations and round-the-clock service, seven days a week, we are at your disposal anytime, anywhere.
We service all brands of plate heat exchangers. Whether you use products from GEA PHE Systems or from other manufacturers at GEA EcoServe you receive full service from a single source.
Posted on: [30-MAR-10]
Happenings / News / Press Coverage
12.03.2010 Full steam ahead thanks to perfect cooling
Small, compact, powerful: VX plate heat exchangers from GEA PHE Systems cool the new yacht engine generation from MAN
More power with simultaneous weight minimisation - that is the formula for success of the new V12 yacht engine, the most powerful unit in the MAN range of ship engine design. With a consistent programme of weight reduction measures the engineers of this traditional Nuremberg-based company have achieved a top rating of 1.78 kg per kW. The 1325 kW diesel engine is cooled by a modified VX plate heat exchanger (PHE) from GEA PHE Systems. The gasketed seawater cooler is a component in the closed cooling circuit, fixed firmly to the engine, which meant that it also had to undergo weight optimisation.
Only titanium plates guarantee corrosion protection on the high seas
The VX plate heat exchanger is installed on the front side of the engine block directly in front of the expansion tank of the fresh water circuit. The cooling water flows through the cylinder heads, charge air cooler and oil cooler at an operating pressure of around 4 bars. Here the fresh water takes up the complete waste heat from the engine and transfers it to the seawater in the PHE in counterflow. As the salt concentration of the seawater would quickly damage stainless steel grades, GEA PHE Systems always uses titanium plates in seawater coolers. Only this high-quality material guarantees the necessary corrosion protection and ensures process reliability on the ocean waves.
VX plate pressed in titanium for the first time
And this was the challenge faced by the GEA engineers this time. Up until now the VX plate had never been pressed in titanium. For a good three months at the Canadian subsidiary GEA ViEX they worked on how to achieve the required weight reduction of the VX plate without losing any of the pressure resistance as the second elementary parameter.
As the raw material titanium cannot be easily deformed, it was necessary to optimise the pressing process. This was successfully achieved by specific modifications to the pressing tool.
Reduced plate thickness with simultaneous increase in heat transfer
Up until now plate thicknesses of a minimum of 0.5 mm had been the lower limit, but now the engineers achieved a VX plate thickness of 0.4 mm and at the same time it was also possible to increase the heat transfer rate by a good 4%, representing a further optimisation of the engine cooling performance. The new MAN V12 unit has a cooling performance of 1060 kW, dissipated via 42 VX plates. VX-13 plates are fitted in the plate pack as their dimensions fit ideally to the engine geometry. The heat transfer surface per plate is 0.13 m2. NBR is used as the gasket material.
A further challenge for the GEA engineers was the transverse installation of the seawater cooler required by MAN, because standard VX plates have parallel flow. A simple rotation through 90°C to achieve vertical installation couldn’t be the answer if emptying and venting the unit was also to be possible.