Coal fired power plants Non-invasive flow measurement on boiler feed water flows Coal fired power plants belong to the most common power plants in the world. By burning coal, feed water is heated up into steam for subsequent electricity generation. Measuring the feed water flows to the boiler is of crucial importance for continuous process optimization and to avoid premature failure of the tubes. A North American coal power plant with more than 200MW capacity approached FLEXIM as of continuing problems with failing boiler feed water tubes – a problem which seemed to be only present at full load situations. Together, the plant operator and FLEXIM, decided to establish a number of flow measurement points on 14” carbon steel pipes with downward vertical flows at 320 °C / 600 °F and 170 bar /

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