Evaporative Cooling

Heat-Reclaim Economics of Air and Water-Cooled Air Compressors

By Mike Wlodarski, HydroThrift Corporation

It is widely recognized that compressed air systems account for ten percent of all electricity and roughly sixteen percent of U.S. industrial motor system energy use. Seventy percent of all manufacturing facilities in the United States use compressed air to drive a variety of process equipment.

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CTI Standard 201: Certifying Thermal Performance of Heat Rejection Equipment

By Bill Smith, Associate Content Manager, Chiller & Cooling Best Practices Magazine

This article will explore the Cooling Technologies Institute (CTI) Standard 201 (STD-201) Thermal Certification This article will explore the Cooling Technology Institute (CTI) Standard 201 (STD-201) Thermal Certification Program, share perspective from leading cooling tower manufacturers, and cover other existing and evolving CTI test codes, standards and certifications. This article will also emphasize the investment and bandwidth contributed to CTI by cooling tower manufacturers for the benefit of the industry and its end users.

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Assessment Leads to Investment in Free Cooling at Utah State University

By Mihir Kalyani, EVAPCO

“Evaporative cooling capacity for the district system is provided by a six-cell, open-loop cooling tower capable of 6,000 tons,” said Reid Olsen, USU Central Energy Plant Manager, who has been at the university for 26 years. “This tower serves the condensers of the water-cooled chillers at the heart of the district cooling system. There are four chillers in all, two of which are rated for 1,800 tons each, and the other two are 900 tons apiece. The cooling towers reject heat from the condenser water loop via evaporative cooling, allowing the chillers to supply chilled water to the campus cooling loop.”

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Reducing Cooling Tower Water Consumption through Advanced Water Treatment Technology

By Drew Robinson, Contributing Editor

For decades, evaporative cooling has been the principal means to regulate the temperature of buildings. And with more than 50% of total building water usage dedicated to heat transfer, there are major opportunities for water savings.

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Pros and Cons of Cooling Tower Power Transmission Technologies

By Jerome Jennings, SPX Cooling Technologies, Inc.

Cooling towers can use several power transmission technologies, including a gear drive, belt drive, direct drive, and electronically commutated (EC) drive. Each has advantages and disadvantages. The proper selection strikes an appropriate balance of initial cost versus operating costs.

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Cooling Towers: Finding the Right Fill for Your Process

By Brentwood Industries, Inc.

How often do you think about your cooling tower or the fill that provides the cooling engine for your process? Unfortunately, if you’re like many plant operators, your cooling tower is but one piece of equipment in your large facility, and its ranking on your priority list is probably lower than many other expensive and more intricate pieces of equipment in your plant.

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Tower Tech Cooling Tower Designs Reduce Water Consumption and Treatment

By Dr. S. Curtis, Ph.D. Ⓒ Tower Tech, Inc.

Anecdotal reports from users of Tower Tech cooling towers across the U.S. have indicated the Tower Tech design provides substantial savings to the customer both in terms of lower chemical treatment requirements and substantial water savings. There are a number of mechanisms by which the Tower Tech design facilitates efficient, lower cost water treatment and usage. A few are described in this article.

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Savings at the Steel Mill

By Chuck Gerbe, Total Equipment Company

This major mill complex upgraded their compressed air system and thereby eliminated $500,000 in annual rental compressor costs, reduced annual cooling-water costs by $500,000, and reduced electrical energy costs by $135,000 per year.

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Specifying an Air Compressor Cooling System

By Bruce Williams, Hydrothrift Corporation

There are several pieces of information that your cooling system specialist will need in order to properly engineer and build a cooling system for your new air compressor. There are many types of air compressors and each has different requirements of the cooling system in order to operate correctly. This article will take the mystery out of some of the terms and specifications for your cooling system.

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