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Power Plant Instrumentation and Control Handbook by Ajay Kumar Debnath, Swapan Basu

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4. Flow Measurement, Various Measuring Points, Various Types, and Range Selection

Flow measurement in a power plant is a very important parameter. Whenever the word “total” is used, the mass flow comes into the picture. Everything like ultimate power output, efficiency of the power plant, total enthalpy, etc., depends on the mass flow of steam, coal, and oil. Various kinds of flow meters are shown in Figure IV/4.0-1 with selection guidelines from permanent pressure loss, discharge coefficient variations, etc.

4.0. Units of Measurement

There are two basic types of flow measurement: volumetric and mass flow rates. Both gas and liquid flow can be measured in volumetric as well as in mass flow rates. It is well known that mass of a particular homogeneous ...

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