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Hybrid Cooling Systems Cleaning and Maintenance

June 30th, 2016

Blog: A purebred mechanical system becomes a composite when the top features of several processing forms blend together to create a stronger whole-system solution. In cooling system technology, this amalgamated mechanical form employs air and water, heat exchange components and evaporative technology, all in the service of a pedigreed cooling format. Water consumption is reduced while environmental benefits are realised, undoubtedly, but a hybrid cooling systems cleaning and maintenance strategy requires special attention, a considered approach that accounts for a unique cooling profile.

Semi-Dry Disadvantages

Wet towers use an open-plan design, one that aids heat rejection within the cooling tower. That same open form makes it relatively simple to reach interior surfaces and clean them, but hybrid systems don’t always use this broadened heat rejection profile. Instead, the cooling components are contained within smaller housings and compact enclosures. Sprayed water is mostly missing from the engineering equation here, but evaporative action is still hard at work. Unfortunately, those moisture-laden pads are potential breeding grounds for germs, and, worse still, other issues plague the tube packs and condenser coils within the hybrid form, as dirt and corrosive attacks debilitate smooth functionality.

Hybrid Cooling Systems Cleaning and Maintenance

If a standard water treatment strategy isn’t viable, then alternative maintenance programs must be initiated. The focus assumes a more compartmentalised approach, a methodology that isolates distinctive cooling contributors. Cooling pads are periodically evaluated for growths, both bacterial and algae-related, and a sterilisation program treats the evaporative media. Meanwhile, dry finned and coiled assemblies mandate an additional cleaning measure. Fan-assisted units drive dirt and humid air through the fins and trigger a corrosive reaction. Now, galvanised steel and other strong alloys are typically in evidence throughout the oversized cooling appliance, but scale and dirt will partner to deliver a nasty one-two punch, a surface deteriorating influence that inevitably weakens structural integrity. For instance, unprotected coils are complex geometrical constructs, and those dual forces have a way of working themselves into tiny gaps, so a long-term surface-guarding treatment plan provides a healthy preventative measure.

A combined wet/dry cooling mechanism leverages the best that composite environmental control technology has to offer, which is a solid truism in locales where water is a scarce commodity. Still, the mechanism is often harder to keep within defined hygiene guidelines, so a hybrid cooling systems cleaning and maintenance program must adopt a far more exhaustive treatment procedure if the equipment is to be declared absolutely sterile.



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