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Micah Thomson

Micah Thomson
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Cooling Tower Passivation Explained

Posted by Micah Thomson on Jun 13, 2017 11:00:00 AM

New evaporative cooling systems, typically cooling towers, ammonia condensers and fluid coolers are manufactured with several options for materials of construction, each with their own benefits and draw backs. Hot-dipped galvanized steel (steel that has been coated with zinc) has become the most common choice for construction as it provides structural strength at a relatively low cost and enhanced corrosion resistance over that of uncoated steel. However, the zinc coating is not well-suited for locations that are in constant contact with water, and requires passive oxidation to be protected from corrosion when exposed to cycled cooling tower water. Passivation is the process by which this zinc layer is oxidized slowly under controlled conditions to produce a passive layer of zinc oxide on the exterior surface of the coating, which provides superior resistance to corrosion.

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Topics: Cooling Water Treatment

A Guide to Waterside Inspections

Posted by Micah Thomson on Dec 7, 2016 10:30:00 AM

Performing regular waterside inspections of your critical system equipment is an important part of a successful preventative maintenance program. As we enter the holiday season, many systems may be temporarily shut down, providing a perfect opportunity for waterside inspections.

Visual inspections provide an indication of the overall health of your system and validate the results of your water treatment program. It is crucial to catalog inspection reports to allow you to determine if the current condition indicates equipment status is unchanged, improving or degrading.

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Topics: Boiler Water Treatment, Cooling Water Treatment

Physical Water Treatment Devices: Understanding and Selecting ‘NCDs’

Posted by Micah Thomson on Jul 20, 2016 11:10:23 AM

The goals of cooling water treatment systems are to minimize corrosion, inhibit scale formation, control biological activity, avoid fouling, and minimize water consumption.  Physical water treatment devices, often referred to as non-chemical devices or NCDs may target all or some of the same requirements as a traditional chemical water treatment program.

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Topics: Cooling Water Treatment

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