DISTRIBUTED PARAMETER MODELING AND THERMAL ANALYSIS OF A SPIRAL WATER WALL IN A SUPERCRITICAL BOILER

Abstract

In this paper, a distributed parameter model for the evaporation system of a supercritical spiral water wall boiler is developed based on a 3-D temperature field. The mathematical method is formulated for predicting the heat flux and the metal-surface temperature. The results show that the influence of the heat flux distribution is more obvious than that of the heat transfer coefficient distribution in the spiral water wall tube, and the peak of the heat transfer coefficient decreases with an increment of supercritical pressure. This distributed parameter model can be used for a 600 MW supercritical-pressure power plant.

Keywords

Dates

  • Submission Date2013-01-18
  • Revision Date2013-04-26
  • Acceptance Date2013-06-02
  • Online Date2013-12-28

DOI Reference

10.2298/TSCI1305337Z

References

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Volume 17, Issue 5, Pages1337 -1342