Feasibility for the Application of the Temperature Difference Computing Method Based on the Simplified Solution of the Radial Temperature for a Boiler Steam Drum Wall to a Supercharged Boiler

Abstract:

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The radial temperature difference calculation of a steam drum wall is an important step in the process of calculating the low-cycle fatigue lifetime of a steam drum. So the German Standard TRD301 recommended a temperature difference computing method based on the simplified solution for the radial temperature of a steam drum wall. In order to validate the feasibility for the application of this computing method to solving the same problem of a supercharged boiler, on the basis of the reasonable simplifications to the unstable heat conduction problem across a steam drum wall, its heat-conduction equations and definite conditions were determined, then the analytical solution for the radial temperature of a steam drum wall, together with its approximate and simplified solutions, is derived. The running example of one super-charged boiler was calculated and analyzed by use of the radial temperature difference computing methods based on the approximate and simplified solutions respectively. The com-puted results show that the German Standard computing method of TRD301 has great limitations in the same problem calculation of a supercharged boiler, and it can’t apply to the researches on the same problem and its relevant problems of a supercharged boiler as a universal computing method.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

6383-6390

DOI:

10.4028/www.scientific.net/AMR.383-390.6383

Citation:

X. W. Zheng et al., "Feasibility for the Application of the Temperature Difference Computing Method Based on the Simplified Solution of the Radial Temperature for a Boiler Steam Drum Wall to a Supercharged Boiler", Advanced Materials Research, Vols. 383-390, pp. 6383-6390, 2012

Online since:

November 2011

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$35.00

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