Effective boiler performance is a function of the boiler design, the selected cleaning equipment, and the proper control of the cleaning equipment. The Duyen Hai 3 boiler design complies with the latest B&W standards for furnace sizing and convection pass surface arrangement. | Sumitomo Corporation for EVNGENCO1 Duyen Hai 3 Extension, 1 x 660 MWnet Power Project July 7, 2014 BOILER DESIGN FOR CONTROL OF SLAGGING AND FOULING Design Features for Reduced Slagging and Fouling Effective boiler performance is a function of the boiler design, the selected cleaning equipment, and the proper control of the cleaning equipment. The Duyen Hai 3 boiler design complies with the latest B&W standards for furnace sizing and convection pass surface arrangement. Additionally, the boiler incorporates several features often reserved for more problematic severe slagging coals, such as: ● Extended furnace arch (at least 35% of furnace depth). ● m ( ft) set back of first pendant surface from tip of the arch. ● Sootblower spacing, maximum instantaneous blowing capability, and tube bank depths and side spacings set conservatively for the design coals. ● Flue gas temperatures entering pendant banks all within B&W established limits for the design coal characteristics. ● Furnace plan area set conservatively per B&W standards based on the particular coals to be fired. ● Wide spaced superheater sections, such that the first surface in the direction of gas flow arranged on side spacing less than 450 mm (18 in) is the pendant reheater outlet bank. ● B&W’s Powerclean™ and Heat Transfer Manager™ systems for intelligent sootblowing of heating surfaces and optimization of heat transfer throughout the boiler. B&W Proposal P-043049 PROPRIETARY AND CONFIDENTIAL Copyright © 2014 Babcock & Wilcox Power Generation Group, Inc. All rights reserved Page 1 of 9 Sumitomo Corporation for EVNGENCO1 Duyen Hai 3 Extension, 1 x 660 MWnet Power Project July 7, 2014 Extended Arch and Pendant Superheater Setback The fuel analyses provided for Duyen Hai 3 have relatively moderate slagging and fouling characteristics, but the above features have been included to ensure a conservative furnace design. The sootblower system is designed to provide .
