1-20 of 34 Search Results for

secondary superheater tube

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430409
EISBN: 978-1-62708-253-2
... pathways, and relevant test and measurement procedures. It describes life assessment methods based on hardness, wall thickness, scale formation, microstructure, and creep. It also includes a case study on the determination of the residual life of a secondary superheater tube. boiler tubes remaining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080359
EISBN: 978-1-62708-304-1
... susceptible to corrosion. This chapter describes some of the problems that the pulp and paper industry has solved as well as ongoing issues and concerns. It includes an in-depth review of 304L cladding failures involving coextruded composite tubes used as floor tunes in the lower furnace, as superheater tubes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
..., intended to reduce NOx emissions, accelerates tube wall wastage. It also covers circumferential cracking in furnace waterwalls, thermal fatigue cracking induced by waterlances and water cannons, superheater-reheater corrosion, and erosion in fluidized-bed boilers. coal-fired boilers combustion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080321
EISBN: 978-1-62708-304-1
... the tube samples together to form a test tube. This test tube was then installed in the secondary superheater tube bank in a boiler fired with fuel oil containing 4.0% S, 0.007% Na, 0.007% V, and 0.017% Cl at Bromborough Power Station (United Kingdom). During the exposure test, the metal temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... alloys. It also discusses corrosion protection methods for furnace waterwalls and superheater tubes in waste-to-energy boilers. corrosion corrosion protection superheaters waste incinerators waste-to-energy boilers References 1. Krause H.H. , Historical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... thermal fatigue is found in waterwall tubes or such other areas of the boiler that are subjected to departure from nucleate boiling or rapidly fluctuating flow conditions. It is also observed in superheaters subjected to vibrations of low amplitude. Waterwall tubes in pulverized coal power...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... waterwall tubes, superheater (SH) or reheater (RH) tubes, and economizer tubes ( Ref 4.1 ). A header is a thick-walled pipe penetrated by a number of tubes. These heavy-section components have to handle creep and mechanical fatigue, whereas for tubing applications, thermal fatigue is not a key issue because...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
.... A secondary superheater tube of a utility and off-site crude oil boiler had ruptured in a longitudinal direction after 5 years of service. The MOC of the tube was per SA 213 Grade T11, and the tube dimensions were 44.5 mm (1.75 in.) OD and 4.0 mm (0.15 in.) wall thickness. Visual examination...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
... outward. The failure of the superheater tube was of a secondary nature. It was caused by the external impingement of a steam jet that eroded the tube and also resulted in punctures at two locations. ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430107
EISBN: 978-1-62708-253-2
... ray tube (CRT) screen but also gives various data signals, namely secondary electrons (SEs), back-scattered electrons (BSEs), x-rays, and light photons, as shown by the schematic given in Fig. 5.11 . The phenomenon is known as scattering. From an SEM image point of view, SEs and BSEs are of more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... are in operation, oxygen pitting occurs as a result of the malfunctioning of the deaerator or improper oxygen scavenging treatment. The superheater and reheater tubes, feedwater heater, economizer, and condensate lines are the most vulnerable sites for oxygen attack or pitting to take place. Pitting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... in which steam, after it has left the boiler drum, is heated above its saturation temperature. The steam from the drum passes to the superheater coils placed in the flue gas path. The superheater coils may consist of one or more stages of tube banks arranged to effectively transfer heat from the flue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
... tubes. Such carryover deposits are particularly found in the superheater section, and may consist of soot, ash, and slag. Deposits decrease the boiler efficiency by reducing heat transfer. The heat transfer surfaces are therefore required to be periodically cleaned using air, steam, water, or mixtures...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... . Fig. 5 Stress rupture of heater tube: (a) heater tube that failed due to stress rupture; (b) and (c) stress rupture voids near the fracture. Source: Ref 3 Fig. 6 Thick-lip “fishmouth” failure of a 2-in.-diam superheater tube. The tube bent away from the fracture due to the reaction force...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030074
EISBN: 978-1-62708-282-2
... 22.0 55.0 5.0 max 2.0 … … 0.35 3.0 max 0.10 14.0 W, 0.015 max B, 0.02 La Gas turbines, superheater tubes N06600 Inconel 600 15.5 76.0 … … … … … 8.0 0.08 0.25 Cu Furnace components N06601 Inconel 601 23.0 60.5 … … … … 1.35 14.1 0.05 0.5 Cu Furnace and heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220129
EISBN: 978-1-62708-259-4
... container can have catastrophic results. Ice cubes formed from water with dissolved air contain small tube-like pores (in a shape similar to those pores in Fig. 8.2 , but farther away from the cube surface). This region solidifies as an ice-air eutectic (the liquid transforms to ice and air, at a given...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120025
EISBN: 978-1-62708-269-3
.... The conversion of ingot into general mill products—billet, bar, plate, sheet, strip, extrusions, tube, and wire—is what we define as primary fabrication. Forging, casting, powder metallurgy, and joining techniques used to produce a finished product are secondary fabrication. Mill products can readily...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410103
EISBN: 978-1-62708-280-8
.... Relationships among casting features are defined and dimensioned with reference to three perpendicular datum planes. The three datum planes are: primary, secondary and tertiary. Locators are positioned on the datum planes, three on primary, two on secondary, and one on tertiary. Figure 6.7 illustrates the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... resistance, these are often overlaid with stainless steels such as type 347. Other applications for low-alloy steels are furnace tubes, heat-exchangers shells, piping, and separator drums. Stainless steels are extensively used in petrochemical plants because of the highly corrosive nature of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
.... Some steel components are so small that a magnifying glass is required to see their details, while other steel components may weigh hundreds of tons. For example, steel tubes over a mile long can be coiled, transported on a truck, and uncoiled into an oil well. The many product forms of steels include...