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主页 旧刊 有关人员 未来大会 American Society of Thermal and Fluids Engineering

ISSN 在线: 2379-1748

ISBN 打印: 978-1-56700-517-2 (Flash drive)

5-6th Thermal and Fluids Engineering Conference (TFEC)
May, 26–28, 2021 , Virtual

PREDICTION OF EROSION AND ACCRETION FROM SOLUTION OF SALT AND WATER OVER PIPE WALLS OF CONDENSER IN A THERMAL POWER PLANT

Get access pages 689-704
DOI: 10.1615/TFEC2021.fip.036767

摘要

It is extremely important and required by thermal power plant to condense the exhaust steam from steam turbine outlets to obtain maximum efficiency. Surface type condensers are often used to meet these demands. By condensing the exhaust steam at a pressure below atmospheric pressure, the pressure drop between inlet and outlet of turbine is increased which increases the amount of heat available for conversion to mechanical energy by the turbine. The more the heat transfer, the more effective it is to expedite the overall efficiency. This can be affected by fouling/erosion. So, these are required to be analyzed. A computational simulation of a section of the condenser in 210 MW thermal power plant (of a local company of India) with erosion modeling has been done using commercial CFD (Computational Fluid Dynamics) code. Analysis of erosion accretion due to mixture of Calcium Sulphate in water are taken in consideration to interpret the location, where scaling happens and how the scaling affects the heat transfer ability of the heat transfer tubes. There is a built-in erosion and accretion model in FLUENT, which accounts of erosion/accretion on a surface from solid particle. Although the water is liquid, but the particle that is responsible for erosion and accretion is solid. This analysis is done to predict overall annual accretion from the data found in different flow time and the linearity of accretion over time is also investigated.
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