CoatingsPro Magazine

MAY 2017

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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66 MAY 2017 COATINGSPROMAG.COM Never Again Visual inspections and testing of the protective coatings and linings at a coal-fired power plant in South East Asia showed noticeable defects. By Louis Sharp, Senior Consultant for Energ y Project Resources, Inc. The Case of the Scrubbed-Off Power Plant Coatings W e were cont rac ted to per for m a coat i ngs su r ve y on a coa l- f i red power projec t i n Sout h E a st A si a , wh ic h t u r ned i nto a fa i lu re a n a ly si s ef for t. T h i s pl a nt i s loc ated on t he coa st i n a h a rsh , hot , hu m id env i ron ment ne x t to a coa l m i ne, a nd it 's e x posed to a heav y a mou nt of i ndu st r i a l fa l lout m ater i - a l s, suc h a s su l f u rs a nd c h lor ides. A ccord i ng to I nter n at ion a l St a nd a rd O rga n i z at ion ( I SO), t he pl a nt i s c l a ssi f ied a s a C 5M , wh ic h mea n s t h at it i s t he most cor rosive env i ron - ment i n wh ic h a st r uc t u re m ay be loc ated . T h i s w a s a n Eng i neered P roc u rement Con st r uc t ion ( EPC ) cont rac t where t he qu a l it y w a s supposed to be a ssu red by t he cont rac tor. The Problem Is in Sight Coal-fired power plants have many different types of piping, structures, and other areas that operate at differ- ent temperatures and have specific functions. ese plants also use many different types of chemicals, which make finding any type of protective solution(s) more challenging due to the various types of protective coatings and lining systems that needed to be installed or applied. Often, in develop- ing countries, there are many different organizations and standards that are referenced in the specifications, making it logistically challenging for the project participants. e inspection and evaluation performed was in the later stages of the four-year project. With a team consist- ing of two assistants and locally trained inspectors, it eventually required 13 months to complete the work, given the scale of the facility. e work was intense at times, given the extremely hot and humid temperatures, which Coal-fired power plants have many different types of piping, structures, and other areas that operate at different temperatures and have specific functions.

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