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supercritical thermal power plants

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430017
EISBN: 978-1-62708-253-2
... Abstract Coal-based thermal power plants play a major role in the welfare of many nations and the overall global economy. This chapter describes the basic equipment requirements and operating principles of thermal power plants, particularly subcritical, supercritical, and ultra-supercritical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
... boilers, oil- and gas-fired boilers, waste heat boilers, and black liquor recovery boilers. It also describes the operation and working principle of utility or power plant boilers, covering conventional subcritical and advanced supercritical types. black liquor recovery boilers electric boilers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... (USC), and advanced ultra-supercritical (A-USC), differing from one another in terms of the maximum operating steam temperature and pressure and the power generation capacity of the plant. As one moves from subcritical to A-USC, materials with enhanced stability at higher and higher temperatures...
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
... furnaces erosion-corrosion fluidized-bed boilers furnace waterwalls thermal fatigue cracking 10.1 Introduction A coal-fired electric power generating station is a highly complex plant. A major piece of the equipment in the power plant is the boiler, which generates steam that is then delivered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.9781627082532
EISBN: 978-1-62708-253-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490383
EISBN: 978-1-62708-340-9
... steels would be essential. In existing plants, problems have occurred with type 316 steel at Drakelow “C” Power Station due to distortion under conditions of thermal ratchetting ( Ref 14 and 63 ) and at Eddystone Power Station ( Ref 64 ), where cracking was due to thermal embrittlement and creep...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.9781627083409
EISBN: 978-1-62708-340-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... boilers employ a nominal 16.6-MPa (2400-psi) steam cycle, whereas most supercritical boilers employ a 24-MPa (3500-psi) cycle. Subcritical boilers use drums for steam separation, whereas supercritical operation dictates the use of the once-through type of design. In addition to the above, boiler designs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430149
EISBN: 978-1-62708-253-2
... of Final Superheater Tube in a Thermal Power Plant Background Details The final superheater tube in a thermal power plant failed after 16,000 hours of service. The failure was noticed by the operators due to a loud noise. The MOC of the superheater tube was SA 213 Grade T91 steel, and the tube...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080321
EISBN: 978-1-62708-304-1
... to be the result of thermal cycling, higher metal temperatures, and oil-ash corrosive conditions ( Ref 14 ). A supercritical oil-fired boiler (590 MWe) required replacement of waterwall panels, which were made of 2.25Cr-1Mo steel (T22), every 2 to 3 years because of severe corrosion. The waterwall tube had...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.9781627083041
EISBN: 978-1-62708-304-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090135
EISBN: 978-1-62708-266-2
... Abstract Nickel and nickel-base alloys are specified for many applications, such as oil and gas production, power generation, and chemical processing, because of their resistance to stress-corrosion cracking (SCC). Under certain conditions, however, SCC can be a concern. This chapter describes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080379
EISBN: 978-1-62708-304-1
... on the waterwall tubes of supercritical coal-fired boilers fired under low NOx combustion conditions, conducive to the production of sulfidizing environments. In the other case, stress contributes to brittle fracture in the form of intergranular cracking. The phenomenon, which is known by various names, typically...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... been a matter of growing concern, as boiler drum operating pressures have been gradually increasing with time. However, it also occurs under lower-pressure conditions where high-purity make-up water is used. Fig. 6.67 Rounded pit formed due to phosphate corrosion In thermal power plants...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430027
EISBN: 978-1-62708-253-2
... consisting of a core of positive ions surrounded by a number of delocalized electrons such that these electrons are not confined to any particular atom but are free to move anywhere within that solid. On account of this atomic structure, metals and alloys possess good electrical and thermal conductivity...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120123
EISBN: 978-1-62708-269-3
... Titanium has been used to contain liquid or supercritical hydrogen at cryogenic temperatures, but above –l00 °C (–150 °F), hydrogen can be absorbed and go on to diffuse into an alloy. If it does, the dissolved hydrogen can severely embrittle titanium. The potential for embrittlement is increased where...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390456
EISBN: 978-1-62708-459-8
... be ensured only by metal removal, and it has been estimated that this activity alone accounts for some 3% of the GNP in an industrially developed economy. There are thus powerful incentives to understand the process, so that metal can be removed at a fast rate, at low cost, and with adequate surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090419
EISBN: 978-1-62708-266-2
...-particle, and eddy current inspection are widely used for the detection of SCC. However, their use is limited to periods of plant shutdown, or to times when systems can be made available for inspection ( Ref 18.1 ). Obviously, these techniques can also be used to locate cracks on samples removed from...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
... areas, selection criteria differ markedly. Corrosion applications normally use low-strength unalloyed titanium mill products fabricated into tanks, heat exchangers, or reactor vessels for chemical processing, desalination, or power generation plants. In contrast, high-performance applications typically...