CoatingsPro Magazine

MAR 2018

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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Page 58 of 84

Feature 58 MARCH 2018 COATINGSPROMAG.COM Power It Up: A Complex Coating Job at a New Power Plant PHOTOS COURTESY COATINGS UNLIMITED INC. BY JENNIFER FRAKES E E nergy efficiency is a hot topic across all industries in today's world, as is reducing the reliance on fossil fuels as an energy source. As part of a commitment to expand fuel diversity, many utility companies are investing in building combined-cycle power plants. Combined- cycle power plants work not only to produce electricity but also to capture waste heat from the traditional gas turbine to increase efficiency and electrical output. In the power plant, gas turbines burn fuel, compress air, and then mix the air with fuel that is heated to an extremely high temperature. is hot air-fuel mixture moves through the gas turbine blades, making them spin at a very high rate of speed. e turbine drives a generator that converts the spinning energy into electricity. In a combined-cycle power plant, a heat recovery system generator (HRSG) captures exhaust heat from the gas turbine that would simply be released through an exhaust stack in a single-cycle power plant. e HRSG creates steam from the gas turbine exhaust heat and delivers it to the steam turbine. e steam turbine sends its energy to the generator drive shaft, where it is converted into additional electricity. Recently, a utility company in the south, which prefers not to use its name, decided to build a new facility that utilizes combined-cycle technology. According to Steven Philipp, Jr. of Coatings Unlimited Inc. (CUI), the utility company invested nearly one billion dollars in this facility, a power plant that has upward of 1,100-megawatt generation capacity. "We were brought on the team by Kiewit Power Constructors to perform a diverse scope of work, including coating plant assets, such as HRSGs, concrete floors, trenches, sumps and containments, stacks, condensers, piping, large diameter circulation water lines, and various equipment," said Philipp. As stated by Philipp, a high-temperature aluminum coating was specified for the project; however, the client was not sold STEEL POWER PLANT SILICONE

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