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condenser tubes

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Published: 01 January 2000
Fig. 18 Thick calcium carbonate deposits on a condenser tube and a copper transfer pipe. Heavily stratified deposits reflect changes in water chemistry, heat transfer, and flow. Corrosion may be slight beneath heavy accumulations of fairly pure calcium carbonate because such layers can inhibit More
Image
Published: 01 January 2000
Fig. 31 Schematic of erosion-corrosion of a condenser tube More
Image
Published: 01 March 2001
Fig. 7 Schematic of erosion-corrosion of a condenser tube More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... of diffusion, nucleation, and growth. It also discusses alloying, heat treating, and defect formation and briefly covers condenser tube materials. alloying elements austenitic stainless steels boiler tubes condenser tubes continuous cooling transformation diagram creep-resistant steels ferritic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... on various steels and alloys, covering cost, engineering specifications, and ease of use. boiler tubes chemical composition condenser tubes materials selection steel 4.1 Introduction Boiler technologies developed over time are known as subcritical, super-critical (SC), ultra-supercritical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... temperatures are normally in the range of 560 to 600 °C (1040 to 1110 °F) and the pressure is about 45 bar (0.65 ksi). Low-pressure steam leaving the turbine, which is a little above its boiling point, enters the condenser, where it condenses back to water. A condenser is a shell-and-tube-type heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... and condensate returns. The contamination of boiler feedwater (BFW) can be a slow, degenerative process or an instantaneous, catastrophic event. Boiler water chemistry control has a major role to play in averting boiler tube failure. Boiler water chemistry control is a very vast subject by itself...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... the conductivity of water and hence the higher the tendency for corrosion and scaling. 7.2.3 Iron Suspended or dissolved iron from feedwater is deposited on boiler tube surfaces and can lead to tube failure. Rusted boiler tubes and condensate return (i.e., condensate water) are the main source...
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
... and reheater tubes. The deposited fly ash may be loose powder or it can be in the form of a sintered or slag-type mass. In turn, the volatile alkali and sulfur compounds condense on these fly ash particles, or sintered mass, and react with it to form complex alkali sulfates, such as KAl(SO 4 ) 2 , Na 3 Fe(SO 4...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.9781627082532
EISBN: 978-1-62708-253-2
Image
Published: 01 December 2015
Fig. 46 Accelerated aqueous chloride corrosion below inlet nozzle of crude tower overhead condenser due to droplet impingement. Note partial loss of carbon steel baffles and localized corrosion along top of admiralty metal (C44300) tubes. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... in water service and commonly are restricted to applications below 260 °C (500 °F) because of strength limitations. Admiralty brass (C44300) tubes have been extensively used in water-cooled condensers and coolers at most refineries. However, in general, copper alloys suffer accelerated corrosion in both...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030184
EISBN: 978-1-62708-282-2
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
...-velocity stream of condensed water droplets Excessive blowing pressure injecting a large amount of ash at high velocity Misalignment of blower nozzle Overall malfunction of the soot blowing system As a result, there is metal loss due to thinning of the tube from the OD side. Figure 6.126...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... for the purpose of understanding the effect of the oxide layer on the performance of boiler tubes. Exposure of iron to water in the form of condensate leads to formation of ferrous hydroxide: Fe + 2 H 2 O = Fe ( OH ) 2 + H 2 Ferrous hydroxide in the presence...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310247
EISBN: 978-1-62708-286-0
... level Coker SCA, H 2 S Coke drums 409 Depending on crude corrosivity Gas plants H 2 S, water, Cl − , ammonia Compressor coolers, reboiler tubes AL-6XN, 2205, 2507 … Trays 410S, 316L … Amine plant Ammonia, MEA, DEA Reboilers, trays, filters, condenser tubing 304L, 316L...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220077
EISBN: 978-1-62708-341-6
... the loss in the system, and the more waste heat generated. In particular, the induction heating coil, capacitors, and output transformer constitute a major area of power loss. In tube-type radio-frequency (RF) systems, the plate of the tube may dissipate as much as 50% of the input power. The following...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080437
EISBN: 978-1-62708-304-1
... impurities using makeup water, polishing of returned condensate, deaeration, and blowdown, and (b) chemical treatments to control pH, electrochemical potential, and dissolved oxygen concentration ( Ref 1 ). In the waterwall tubes, as steam forms, dissolved solids concentrate in the boiler water; once...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... up from $589 million for surface piping and facility costs, $463 million in downhole tubing expenses, and $320 million in capital expenditures related to corrosion. The control of corrosion through the use of coatings, metallurgy, nonmetallic materials of construction, cathodic protection, inhibitors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080001
EISBN: 978-1-62708-304-1
... service with the surrounding environment, resulting in high-temperature corrosion. In gaseous environments, high-temperature corrosion is defined as the corrosion that takes place above the maximum temperature at which acids condense and dew-point corrosion takes place. Although a majority of high...