Finite Element Analysis of Steam Boiler Used in Power Plants
Finite Element Analysis of Steam Boiler Used in Power Plants
Finite Element Analysis of Steam Boiler Used in Power Plants
From the modal analysis results, the Material Properties of Steel IS: 2062-
natural frequencies, mode shapes and 1999:
their mass participations of the steam Young’s modulus = 200Gpa
boilerare plotted and checked if any Yield Strength = 250 Mpa
natural frequencies are present in the Tensile Strength = 410 Mpa
operating range of the steam boilerand Thermal conductivity) = 16
critical frequencies are identified. Density, (kg/m3) = 7850
From the harmonic analysis results, the Poisson’s ratio, v = 0.3
operating frequencies are cheeked with Thermal expansion= 1.3*10 6
the critical frequencies and
documented the deflections and
Boundary conditions:
stresses values of critical frequencies.
In structural analysis of steam boiler
3D MODELING OF STEAM BOILER assembly, we have to apply structural and
The 3D model of the steam boiler thermal loads. Temperature distribution is
assemblywas developed using NX- CAD applied as Thermal loads on steam boiler
Fig. Von Mises stress of modified steam The total weight of the Modified steam
Z-dir for the frequency of 57.6Hz, 1. Max. Von Mises stress of frequency @
65.9Hz and 97.5Hz. 30Hz
HARMONIC ANALYSIS OF
MODIFIED STEAM BOILER:
linear scale
2 60 6.1 232
3 70 1.3 103
4 100 4.4 221
From the above analysis it is concluded 8. Lou Roussinos, P. E., “Boiler Design and
that that the Modified steam boiler has Efficiency” [online], Available:
1. Steam Boiler Room Questions & Answers, Circulation HRSG Boiler with a Vertical
Third Edition by Stephen M.Elonka andAlex Steam Separator Design by M.J. Albrecht,
Prentice-Hall Inc, New Jersey, 1980. analysis of a steam heat exchange condenser:
3. Boilers by Carl D. Shields, McGraw Hill 14. conceptual design of a hybrid steam
4. Industrial Heat Generation and Distribution 15. Developmental design of a laboratory fire-
-NIFES Training Manual Issued For CEC – tube Steam boiler by I. O. OHIJEAGBON,