TEMPERATURE CONTROL | TECHNOLOGY


match their exact needs.” Frigel has also introduced the Ecodry BWR


Other options now available on the chiller/TCU


include external temperature sensors that comple- ment internal sensors for highly accurate tempera- ture readouts/control at each mould to optimise cooling temperatures further for improved mould performance. In addition, variable frequency drives on the unit’s pumps allow them to deliver only the necessary amount of water pressure differential and flow needed, when needed, for peak operat- ing efficiency with the least amount of energy consumption. Finally, digital flow meters can provide a high level of accurate flow data to ensure optimal mould performance based on the unique characteristics of each tool. Portable Microgel machine-side TCUs with digital


controls from Frigel can now capture, display and record energy consumption data to increase productivity and profitability further. The digital controls can also give users the ability to review temperatures, pressures and flow rates. All operat- ing data is stored in a historical log and is accessi- ble via a user-friendly touchscreen. The result is the ability to adjust the unit easily for specific moulding conditions for optimal efficiencies. Frigel has also introduced variable frequency drives (VFD) and digital flow meters for its line of Turbogel water TCUs for highly efficient, accurate and cost-effective temperature control. The company says that Turbogel TCUs deliver high turbulent flow and accurate temperature control, often improving processing cycle times by as much as 20%. When equipped with a VFD, the unit’s pumps now deliver only the amount of water pressure differential and flow needed. The optional digital flow meter can provide highly accurate flow data. “Our first step with customers is to thoroughly analyse process cooling variables involved with their distinct processes, machines and moulds,” says Al Fosco, Frigel North America Marketing Manager. “We then customise each Turbogel to


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Water Recovery System, which gives users of the Frigel Ecodry 3DK closed-loop adiabatic central coolers the ability to capture and reuse more water than previously possible. The company says that the Ecodry system can reduce water consumption by as much as 95% when compared with an open cooling tower. Now, Ecodry users who equip the unit with the BWR water recovery system stand to gain an even higher level of water savings. The Ecodry unit, which conserves water as a closed-loop system, features an adiabatic chamber that uses a mist to cool process water circulated to it from processing machines. The Ecodry BWR system consists of small tanks, pumps and a drip pan located beneath the Ecodry unit. Controlled by Frigel’s 3PR central control system, the system automatically catches unevaporated misting water and recycles it back into the adiabatic chamber for reuse, while simultaneously shutting off the water supply. According to Frigel, the system is ideal for use in unusually humid ambient conditions when small amounts of misting water can go unused. It can also be used with an Ecodry unit configured with an optional ABS adiabatic booster system, which uses extra water in the cooling coil chamber when needed to reach targeted process cooling water temperatures. The BWR automatically discharges any unused water to drain when the adiabatic function is no longer required as ambient temperatures drop, meaning that there is never any standing water in the system. Eurochiller has developed a small version of its ICEtemp line of thermo-chillers. Known as One, it can provide a cooling/heating capacity able to


Left: Frigel’s BWR Water Recovery System reuses more water than previously possible


Left: Frigel has introduced enhancements to its Microgel combination chiller/ temperature controllers


June 2018 | INJECTION WORLD 51


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