MechChem Africa February 2017

⎪ Heating, cooling, ventilation and air conditioning ⎪

Water cooler range offers reliable active/passive cooling Intertec has launched a family Doyouhavealong-termplantomaximiseyourHVACinvestment? The IoT, the improved ability to use available data intelligently and proven condition-basedmaintenance approachesmake this easy to do, no matter the age or sophistication of your equipment. q norm. The functionalitywill be built intoHVACequipment and plant equipment will ‘talk’ to the building, automatically finding optimal solutions toperformance issues in conjunctionwithother connected systems, automatically scheduling needed maintenance.

of high-performance water coolers, specially designed to work in combination with passive cooling systems. The

combination of active and pas- sive cooling technologies provides process control and instrumenta- tion engineers with the means to configure field protection cabinets and shelters with extremely reli- able cooling. The combination is ideally suited to protecting remote

and mission-critical control and instrumentation equipment. The two cooling technologies can work together to handle extreme climatic conditions, or maintain continued operation in the event of one system failing. Should electrical power fail completely, the passive cooling system continues to operate indefinitely –maintaining lowshelter temperatures until main- tenance work can be performed. ThenewfamilyofIntertecwatercoolers–dubbedHybricool – are housed in tough GRP enclosures, which are suitable for use in the harshest of environmental conditions. Hybricool water coolers offer an IP rating of IP65 and can alsobe provided in versions suitable for use inhazardous areas. A range of sizes and cooling capacities allows users to select optimal cooling solutions for all common scales of outdoor protection applications from enclosures, to larger cabinets and walk-in shelters. Passive coolingoperates bynatural convection and requires no electrical power. Intertec’s passive cooling systems typically employ water as a medium to store the coolness of the night and use it to moderate temperatures throughout the day. This form of cooling is widely used for ‘off grid’ applications where electrical power is unavailable and/or unreliable, and in remote locations, such as on SCADA systems for pipelines and oil and gas wellheads. A passive cooling system can typically limit the maximum internal temperature of cabinets and shelters to around 10 °C above minimum night-time temperatures, making it ideal for applications in arid and desert climates. The addition of an Intertec Hybricool water cooler reduces the dependence on low night-time temperatures, opening up applications inamuchbroader rangeof climates andgeographi- cal locations. Such hybrid or ‘semi-passive’ cooling systems combining active and passive cooling technologies can easily be configured to maintain internal shelter temperatures at 20 °C or less. q

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