Abstract
ABSTRACT Erosion of an in-bed tube bundle by bed materials (ash, coal, and sorbents) impingement has caused serious problems to many fluidized bed combustion (FBC) boilers. Experimental investigation of the tube erosion processes was made by placing the erosion-prone wax cylinders in a bench-scale, cold fluidized bed to simulate the long term erosion effect. This paper discusses the results of systematic measurements of weight losses of an in-bed tube bundle under various test conditions. The specific erosion rate of immersed wax specimens ranges from 25 to 175 µg/ (cm2 hr) when impacted by 0.55 mm glass beads at a superficial velocity of 75 cm/s. The tube bundle height and configuration were found to have a prominent influence on the mean solid flow pattern and hence the tube erosion. A comparison of the erosion rates of narrow-pitch and wide-pitch staggered bundles, as well as the in-line bundle are presented. Electrostatic impact probes based on the triboelectric effect of moving particles were develop...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
