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Allen Feltzin has over 30 years of experience in process engineering, maintenance, operations, and construction in large scale industrial plants based on his long career with BOC Gases, Murray Hill, New Jersey. He developed world class, state of the art cooling systems which were installed at over 80 sites in North America. He was responsible for every aspect associated with cooling towers: design, specification, erection, inspection, testing, retrofits, upgrades, and demolition.

Al developed and presented training courses on cooling water treatment and cooling system equipment, both in North America and globally. He conducted a comprehensive audit achieving cost reductions and optimizations on a 360,000 gpm seawater cooled system at a 360 MW combined cycle power plant.

As an Advisor with Becht, Al has worked with a European refinery to control calcium phosphate deposition and Legionella. He provided consultation to a US Gulf Coast Refinery on cooling tower life cycle optimization: repair vs. replace, review of inspection reports, thermal performance assessment, oversight of contractors, and asbestos abatement. He has built strong professional organizational affiliations, authored numerous technical papers and made presentations to various industry groups including the Cooling Technology Institute, American Chemical Society, National Association of Corrosion Engineers, Compressed Gas Association, and American Institute of Chemical Engineers.

Mr. Feltzin has the following professional affiliations: Cooling Technology Institute, American Chemical Society, National Association of Corrosion Engineers, Compressed Gas Associations, and American Institute of Chemical Engineers.

Mr. Feltzin holds a Bachelor of Science degree in Chemistry from the University of Delaware.

Cooling Water Treatment: Benefits of a Cold Eyes Review

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The chemical treatment of a plant cooling water system is typically provided through a vendor who supplies both chemicals and service. The most common type of system in industrial plants is an open evaporative, recirculating  cooling water system (with a cooling tower performing the heat rejection) but closed loop systems and once through systems also require treatment.  The chemicals employed are generally proprietary and are specifically engineered to provide control of : Corrosion Mineral Scaling Debris Fouling Biological forms (algae, fungi, aerobic and anaerobic bacteria) The cost for chemical treatment and service is small compared to the cost of the equipment in a cooling system, on the order of a few percent. However, if plugging of a heat exchanger with mineral scale occurs, or a heat exchanger fails by pitting due to corrosion, the entire annual cost for the chemical treatment and service can be exceeded by a single incident in...
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Cooling Towers: Benefits of a Cold Eyes Review

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One key decision that often needs to be made is repair vs. replace. When has a cooling tower arrived at the point where a new tower should be considered? Maintenance costs, overall tower condition, environmental constraints, and performance optimization are all factors that need to be evaluated. If a new cooling tower is justified, how are the specifications for performance selected? What range, fan horsepower, approach to wet bulb, and water flow rate should be specified to best match plant requirements? The range is the difference between the hot water (return) temperature and the cold water (supply) temperature. The approach to wet bulb is due to the fact that, if the cooling tower were infinite in size, the cold water temperature would be at the wet bulb temperature. However, just like a shell and tube heat exchanger with a temperature difference between two streams, a finite cooling tower results in some...
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Cooling Water Systems - 4 Good Reasons Why A Cold Eyes Review Could Be Essential

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An independent (3 rd party) assessment of your Cooling Water System by a Becht SME is highly recommended. There are several key Business Objectives that are addressed by this type of review. 1.  Is There a Plan In Place To Insure Equipment Is Not On The Verge Of Catastrophic Failure?  There are many documented instances of Cooling Towers collapsing from biological (fungal) attack on wood members or excessive weight due to ice, scale, or mud. Fiberglas towers have failed due to improper erection techniques. Frequent inspections are necessary to detect and avoid these conditions. Underground piping may corrode and cathodic protection systems may no longer provide adequate protection. Two common modes of failure on heat exchangers are pitting or stress corrosion cracking (SCC). In this last case, (failure by SCC), Becht worked with a client to retrofit the heat exchanger in place to insure that SCC would not re-occur.   2.  Have...
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