Pfannenberg Water-Cooled Solutions
Our water-cooled solutions are designed with durable components to ensure the effectiveness and longevity of the critical cooling process at hand. Our chillers, in combination with our air/water heat exchangers, offer decisive advantages:
- In applications where power losses must not enter the surrounding space.
- If aggressive ambient air restricts the use of conventional cooling units.
- If a very high IP system is required (up to IP 65).
- If maintenance-free cooling units are necessary
With Manufacturing space at a premium, machine packages have become smaller and liquid cooling has emerged as the most efficient and economical means of removing process heat.
Liquid cooling is especially well adapted to hot, dirty environments, where it provides a method of removing the heat from the machine and not contributing additional heat back into the environment.
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Step 1WHAT IS THE HEAT LOAD? |
Determine the heat load. There are several ways to determine the heat load depending on the application. Understanding the process is essential to calculating an accurate heat load. | |
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Determine the coolant, its target temperature and the flow rate that the chiller must provide to the process. This is determined by the method from which the heat is transferred from the process to the coolant and the type of coolant being used. For example, water has different characteristics than oil. | Step 2COOLANT TYPE, TEMPERATURE & FLOW RATE |
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Step 3IDENTIFY INSTALLATION ENVIRONMENT |
In what environment will the chiller be installed? Indoor applications for example can see high temperatures and dirty atmospheres, while outdoor installations can experience both low and high ambient temperature. This can effect chiller sizing and require accessories such as air filters, sump heaters, etc | |
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Now use the chiller performance curves available* to select a chiller model that meets or exceeds the required capacity based on the chilled water supply temperature and the highest expected ambient air temperature. Consideration should be given to the safety margin of the application with respect to available frame sizes to maximize the value of the chiller selection. | Step 4USE CHILLER PERFORMANCE CURVE |
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Step 5CHECK PUMP PERFORMANCE CURVE |
Check the pump performance curves available* to ensure that the pump will provide enough pressure at the design flow rate to satisfy the application. Some liquid cooled systems have small coolant flow paths or longer distances that can have higher than average pressure losses. | |
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Finally, consider that the remaining application requirements such as power characteristics, control options, footprint, agency listing, color, etc. are met by the selected standard Pfannenberg chiller. Choosing a standard chiller will bring you greater reliability, easier service with common spare parts and global support. | Step 6FINAL SELECTION |
Whatever the application...
Heat is a single common by-product of today‘s manufacturing machines that include the advanced automation technology required for both high speed operation and high precision. Components such as spindle motors, variable frequency drives, laser and x-ray sources all require cooling to operate properly and reliably – most often in very adverse manufacturing environments.
With manufacturing space at a premium, machine packages have become smaller and liquid cooling has emerged as the most efficient and economical means of removing process heat. Liquid cooling is especially well adapted to hot, dirty environments, where it provides a method of removing the heat from the machine and not contributing additional heat back into the environment
...the perfect solution
Pfannenberg‘s extensive background providing cooling for a wide variety of machines including machining centers, printing
presses, wood working machines, welding systems, packaging machines and food processing machines to name a few, allows
us to apply proven cooling technology to new applications.
Our application engineering team works to match our standard products with as many applications as possible and also works
closely with our product engineers to offer custom solutions when required. This continuous interaction allows continuous
product development that is always in keeping with the needs of the market.
Service Friendliness
We are committed to minimum MTTR (Mean Time To Repair) and the shortest time needed to replace units. Our service-friendly accessibility, standardized parts and a carefully thought out plug-and-play concept minimizing your repair costs and downtime make this possible.
Energy Efficiency
Our chillers achieve top grades in energy consumption. They can be centralized, using a single chiller that serves multiple cooling needs, or decentralized where each application or machine has its own chiller. Each approach has its advantages. It is also possible to have a combination of both centralized and decentralized chillers, especially if the cooling requirements are the same for some applications or points of use.
Reliability
Our customers demand performance that offers dependability and reliability they can count on. We are committed to the highest level of design and manufacturing accuracy to make sure your chiller performs as expected. More than 20 years of experience in the field of re-cooling and the use of high-quality components ensure optimum long-term stability and top MTBF (Mean Time Between Failures).
Design
Whether our products are cooling oil or water, Pfannenberg has well-developed global expertise in the design and manufacture of packaged refrigeration products for industrial environments. Pfannenberg's process chillers optimize three basic areas to perform as one: the refrigeration circuit, the hydraulic circuit and controls.Refrigeration System
Since the natural tendency of heat is to move from a higher temperature medium to one with a lower temperature, the chiller’s mechanical refrigeration system is needed to maintain cool fluid temperatures. This assures a constant cooling circuit. Pfannenberg's engineers carefully select the components of this system to maximize performance, efficiency & serviceability. Industrial compressors & fans, extended surface evaporators & condensers, along with the right refrigerant for the application, are seamlessly integrated to achieve the optimum result.
Hydraulic System
Circulating and storing the chilled fluid is the function of the hydraulic circuit. Our standard chillers include high-quality hydraulic components that are selected to support a wide range of applications. Pumps provide flexibility in terms of both flow rate and pressure capabilities. The use of nonferrous materials for wetted parts promotes longer pump life, avoiding premature failure.
