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combustion walls

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003630
EISBN: 978-1-62708-182-5
... Abstract This article provides a discussion on the mechanisms of wear and their interactions with gaseous corrosion. The wear mechanisms include abrasive, erosive, fretting, and sliding. The measurement of degradation on combustion walls in coal-fired boilers is discussed. The article concludes...
Image
Published: 01 August 2013
Fig. 11 Combustion chamber gas and wall ature histories. TDC, top dead center More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004156
EISBN: 978-1-62708-184-9
.... In some cases, these enclosures comprise tangential tube construction or closely spaced tubes with an exterior gas-tight seal. By design, the tube wall and membrane surfaces are exposed to the combustion gases on the fireside, while exterior insulation and lagging prevent heat loss and provide personnel...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004157
EISBN: 978-1-62708-184-9
...-temperature corrosion super heaters furnace water walls corrosion modes alloy performance THE COMBUSTION OF MUNICIPAL SOLID WASTE in a waste-to-energy (WTE) boiler for power generation produces a very corrosive environment for the boiler tube materials. Municipal solid waste typically contains...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005740
EISBN: 978-1-62708-171-9
... must be exhausted; these losses cannot be eliminated entirely. It is important to improve heat management, such as by a thermal barrier or high heat-transfer between intake and exhaust system parts and combustion chamber walls, and so on, to reduce the energy loss and ultimately achieve good mileage...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006544
EISBN: 978-1-62708-290-7
... be considered a process hazard analysis ( Ref 1 ) or dust hazards analysis (DHA), which are far more comprehensive. (A DHA is defined as a systematic review to identify and evaluate the potential fire, flash fire, or explosion hazards associated with the presence of one or more combustible particulate solids...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004124
EISBN: 978-1-62708-184-9
... ingredients can form liquids (liquid ash corrosion) that solubilize the oxide film on tubing and react with the underlying metal to reduce the tube wall thickness. This can occur in the combustion zone (e.g., waterwall tubes) or convection pass (e.g., superheaters). Technologies to reduce NO x emissions...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
... casting and combustion synthesis as well as spin casting. casting defects casting equipment centrifugal casting coating cooling investment casting semicentrifugal casting centrifuge mold casting inoculation fluxing casting extraction mold heating combustion synthesis CENTRIFUGAL...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001487
EISBN: 978-1-62708-173-3
..., and other small openings in floors and walls. The risk of fire is increased by combustibles in the work area, or by welding or cutting too close to combustibles that have not been shielded. Materials most commonly ignited are combustible floors, roofs, partitions, and building contents including trash...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004150
EISBN: 978-1-62708-184-9
...), and chemical impurities, such as sulfides, which undergo modifications during combustion. Both of these classes of impurities can result in environmental problems. The incombustible physical impurities generate products called ash: the large particle forms of this can be collected and must be disposed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003198
EISBN: 978-1-62708-199-3
...), and fluidized-bed equipment (external-resistance-heated fluidized beds). It describes various auxiliary equipment used in cold-wall furnaces, namely, heating elements and pumping systems. Five types of heat-resistant alloys are used for furnace parts, trays, and fixtures: Fe-Cr alloys, Fe-Cr-Ni alloys, Fe-Ni-Cr...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
... water, boiling water, low-quality steam, high-quality steam, and superheated steam. A temperature gradient between the tube wall and the fluid within the tube provides the driving force for heat transfer at any point. The design of a steam-generating unit balances the heat input from the combustion...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006825
EISBN: 978-1-62708-329-4
..., the heat input from the combustion of fuel is balanced by the formation of steam in the water-wall tubes, followed by heating of steam in a superheater or reheater. The heat-flow path through a clean boiler tube has three components. First, fireside heat transfer from the flame or hot flue gases is by both...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001746
EISBN: 978-1-62708-178-8
.... The reaction is indicated by a large amount of spattering to the combustion tube walls. Poor reproducibility of results will be observed on these materials due to the loss of specimen material before complete reduction. In these cases, a reduced sample weight to accelerator ratio should be applied, or varied...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005911
EISBN: 978-1-62708-167-2
... and are kept on the smaller volume end, to avoid the need to empty and refill a 455 tonne tank per day. Glass melting tanks come in different sizes and shapes, but how they are heated has not changed much over the years. Prior to the 1950s, most glass melting tanks were heated by a combustion gas burner(s...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001372
EISBN: 978-1-62708-173-3
... over filler-metal deposition rates because the sources of heat and filler metal are separate. Heat can be applied preferentially to the base metal or the filler metal without removing either from the flame envelope. With these capabilities, OFW can be used for joining thin sheet metal, thin-walled tube...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005957
EISBN: 978-1-62708-166-5
... of classifying furnaces is based on the heating or energy input method. It can be divided into combustion-based heating, electric heating methods, and aerodynamic furnaces where heat is generated by rotation of a fan ( Ref 10 ). With combustion-based (fuel-based) process heating, heat is generated...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006427
EISBN: 978-1-62708-192-4
... Abstract This article focuses on friction, lubrication, and wear of internal combustion engine parts, improvements in which provide important gains in energy efficiency, performance, and longevity of the internal combustion (IC) engine systems. It discusses the types, component materials...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002169
EISBN: 978-1-62708-188-7
... mixture of natural gas and oxygen is then injected into the chamber under pressure. The initial fire or heat is supplied by an ignition system in the form of a spark from an ignitor. The spark causes the combustible gas mixture to ignite, and all the fuel gas is consumed in approximately 2 ms to form...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005929
EISBN: 978-1-62708-166-5
... are suited for low-distortion quenching of iron, steel, and tool steels. The main limitation to the use of salt is its oxidizing nature. Molten is used above its melting point, and violent reactions can occur if combustible or incompatible materials enter the bath. The salts also are hazardous materials...