Here at Parker, if a customer comes to us with questions on heat exchanger specifying, we can walk them through the process. In the case of heat exchangers… In general, consult the factory when determining the model number for a heat exchanger or chiller. For sizing a heat exchanger, several thermal phenomena should be considered first: Forced convection of both fluids: Convection is the transfer of heat between a wall and a flowing fluid, both having different temperatures. To learn more about heat exchanger types and choosing the proper size for your hydraulic system, download the whitepaper. Select the appropriate heat exchanger … That means you have to take into account vital parameters like heat load, available space, environmental conditions, power source, noise, operating costs, and so on.” How to Specify the Proper Sized Heat Exchanger for Your Hydraulic System, heat exchanger types and choosing the proper size for your hydraulic system, download the whitepaper, learn more about heat exchanger types and choosing the proper size for your hydraulic system, download the whitepaper. Whether it’s a new design or a retrofit, it’s hard to pick the right heat exchanger without identifying the challenges and performing all the calculations. For example, gathering the necessary information such as heat load parameters and other key influencing factors. When considering application and sizing of heat exchangers, the ideal operating temperature of the hydraulic fluid and the time it takes to arrive at that temperature must be used. Given the many variables involved, it’s not uncommon for some engineers to delay their decisions on heat exchanger specifications until after seeing how a system performs and how much heat transfer is actually needed. A properly sized heat exchanger in any equipment can save time, money, repair headaches and extend system life. Before reaching out to a manufacturer for assistance, a bit of preparation will go a long way in expediting the selection process. Fortunately, Wessels has produced a few easy-to-use charts for sizing WesPac® brazed plate heat exchangers … So how do you determine which heat exchanger is best for a particular application? As with most design challenges, the answer is, it depends. b. We can help: Contact Us! Smaller hydraulic systems with low operating temperatures may be able to rely on natural convection, but when that doesn’t provide sufficient cooling, a heat exchanger must be installed. Article contributed by Rick Morton, business development manager, Parker Accumulator and Cooler Division. Fortunately, most heat exchanger manufacturers offer software to help you determine the best fit for each application. In addition, consult the factory when specifying a chiller with … A properly sized heat exchanger in any equipment can save time, money, repair headaches and extend system life. Determine the Total BTUh required ( using guidance from your radiant tube supplier) for the snow melt system. Keeping your cool in choosing the right heat exchanger A sound foundation in process engineering and familiarity with the mechanical aspects of heat exchangers … Thermal design and sizing of heat exchangers is often relegated to senior engineers because of the complexity of the task and the number of parameters involved. To select a heat exchanger for a snow melt application: a. To learn more about heat exchanger types and choosing the proper size for your hydraulic system, download the whitepaper. “There are many factors to consider and a wide range of heat exchangers, with certain benefits to each kind. Whether you work with large mobile equipment (for example, construction, military, forestry, and material-handling units) or commercial/industrial process machinery with hydraulic systems, hot fluid is a concern. Please note that, in an effort to combat spam, comments with hyperlinks will not be published. When you have questions, it's often best to simply contact a heat exchanger supplier directly. Have a question about Parker products or services? The heat exchanger in this application isolates the glycol loop from the boiler water. Rather than using an adjustable design with replaceable plates like the WesPlate®, these brazed plate heat exchangers cannot be modified, so correctly sizing a unit is very important. You can also assume a heat exchanger is needed when a specific oil temperature is required to stabilize hydraulic fluid viscosity, or when equipment has a history of hot oil problems, such as shortened seal life or frequent oil breakdown. Accurately defining hydraulic cooling needs can be confusing because actual heat generation often varies as a machine goes through different cycles and because ambient temperatures or other environmental factors can affect system heat levels. Chiller or Heat exchanger sizing calculations. Hydraulic Pump/Motor Selection Considerations for High-Production Shredding Applications, Reduce Failure of Hydraulic Systems with Preventive Maintenance. For example, we provide an online calculator (Essential Cooler Sizing Parameters) and other interactive resources where an engineer can plug in specifications to get a better idea of what exactly is needed. – the need for an effective heat exchanger is often an essential consideration. Rick Morton, business development manager, Parker Accumulator and Cooler Division. Given the many risks of excess heat in a hydraulic system – such as fluid decomposition, increased wear on system components, damage to seals and bearings, etc. The choice of a heat exchanger generally ties directly to the type of system to be cooled.