HEAT EXCHANGERS
Reducing the charge I
nternational manufacturer of heat transfer technology, Güntner believes that the key topics in the refrigeration and air conditioning industries all revolve around their respective legal requirements along with the increased demand for heat exchangers using natural refrigerants.
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The market is currently looking to manufacturers during this period of legislative
Güntner has invested
considerable sums in its research and development programmes to stay ahead of the requirements stemming from legal obligations and to optimise its products. The condenser and air cooler product families have already been re-engineered so that, on a technical level, the units are optimised to be operated with the respective fl uids.
The core tube diameters and materials, in combination with the fi n geometries, provide the optimum maximum capacity and minimum tube volume to minimise the refrigerant charge in a refrigerating plant. Güntner is also looking to introduce new products with supporting documentation and evidence of how the benefi ts are realised. Not only do these innovations include reduced refrigerant charge, but energy savings, decreased set-up and maintenance, improved product life and enhanced operational features, amongst other benefi ts. The onus is not only on savings
change, to not only introduce technologies that are both compliant and innovative, but also to bring clarity, making it easier to decide which solution to use.
The industry is launching so many solutions into the market that it is increasingly difficult for the customer to determine which is the best for any application. Legal requirements, be it on an international or a national level,
at time of order, but continuing savings over the life of the product.
The company’s controls division off ers a whole range of controls products especially developed for and adapted to the diff erent units and their applications, with benefi ts ranging from super low capacity motor management to the possibility of monitoring and analysing specifi c units using an app.
From the design process using the Güntner product confi gurator (GPC) to consultancy on specifi c product applications, the goal is always to prolong the product’s service life and fi nd the best solution. The business therefore looks to ensure long-term partnerships with customers, giving access to the business and its experiences worldwide. The company’s continuing support of Eurovent underlines its commitment to ensuring full transparency and maintaining the highest levels of customer satisfaction.
Visit Güntner on stand 7-124
such as the F-Gas Regulations or HSG274 (Legionnaires’ disease technical guidance), are of course major influencing factors in the business of heat exchanger manufacturing.
Considering, for example, that in each refrigerating plant at least two heat exchangers are used, it becomes clear that there is significant potential for the reduction of the refrigerant charge.
Since 2017, Güntner has run its own measurement laboratory for CO2 NH3
and
at its headquarters in Fürstenfeldbruck, Germany. In this facility, capacity and air volume measurements are being performed as well as sound measurements. The chamber design is based closely on the requirements of EN 327/328 and provides Güntner with reliable capacity measurements for a wide range of thermal boundary conditions. The design of the measuring system also allows for the performance of frosting and defrosting tests. All these measurements are carried out mainly on CO2
gas
coolers and condensers, as well as CO2
and NH3 evaporators.
The measurements on the CO2 units are carried out also in
preparation for the extension of the Eurovent certifi cation to these units. CO2 CO2
gas coolers and
evaporators as a group are intended to be certifi ed soon within the framework of the next Eurovent extension.
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