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Search Results for Heat exchanger tubes

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Published: 01 November 2007
Fig. 3.22 Type 321 heat-exchanger tubes, which were manufactured by two different alloy suppliers, were tested in the same facility as described previously for preheating air at approximate metal temperature of 620 to 670 °C (1150 to 1240 °F) for about 1008 h. (a) Supplier A. (b) Supplier B More
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Published: 01 January 2000
Fig. 54 Stress-corrosion failure of a type 304 stainless steel heat exchanger tube from carbon dioxide compressor intercooler after exposure to a pressurized chloride-containing (200 ppm) environment at 120 °C (250 °F) (a) Cracks on the external surface. (b) Cracks originating on the external More
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Published: 01 January 2000
Fig. 5 A gelatinous biofouling slime layer on a heat exchanger tube sheet. The slime layer may be colored by dirt and other debris that accumulates in the gooey mass. Source: Nalco Chemical Company More
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Published: 01 January 2000
Fig. 7 Severely pitted aluminum heat exchanger tube. Pits were caused by sulfate-reducing bacteria beneath a slime layer. The edge of the slime layer is just visible as a ragged border between the light-colored aluminum and the darker, uncoated metal below. Source: Nalco Chemical Company More
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Published: 01 December 2015
Fig. 26 Pitting corrosion in Monel tubes from a heat exchanger. Each pit was originally covered by a discrete deposit containing large numbers of SRB. Source: Ref 9 More
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Published: 31 December 2024
Fig. 11.61 Heat exchanger with two copper tubes soldered into a copper sheet metal fitting More
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Published: 01 April 2013
(nickel and nickel alloy tube), E 690 (nonmagnetic heat-exchanger tubes), E 426 (stainless steel tube), and E 309 (steel tube). Source: Ref 3 More
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Published: 31 December 2024
Fig. 11.57 Setup for a manual brazing process to join a bent copper tube to heat-exchanger tubes. 1, inductor coil; 2, insulating prism; 3, brass holder; 4, brazing ring. Courtesy of eldec More
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Published: 31 December 2024
Fig. 11.58 Automated assembly line for brazing copper pipe bends to heat-exchanger tubes. Courtesy of eldec More
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Published: 01 December 2015
Fig. 3 Uniform-layer dezincification in an admiralty brass 19 mm (3/4 in.) diameter heat-exchanger tube. The top layer of the micrograph, which consists of porous, disintegrated particles of copper, was from the inner surface of the tube that was exposed to water at pH 8.0, 31 to 49 °C (87 More
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Published: 01 January 2000
Fig. 30 Horseshoe-shaped depressions on the internal surface of a brass heat exchanger tube caused by erosion-corrosion. Source: Nalco Chemical Company More
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Published: 01 November 2007
Fig. 3.19 Surface depletion of chromium observed in a thin-gage commercial heat-exchanger tube in the as-fabricated condition made from Type 321. Source: Ref 30 More
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Published: 01 December 2015
Fig. 9 Example of high-temperature sulfidation attack in a type 310 heat-exchanger tube after ~100 h at 705 °C (1300 °F) in coal-gasifier product gas More
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Published: 01 January 2000
Fig. 20 Severe localized corrosion on a type 316 stainless steel heat exchanger tube. Attack occurred beneath deposits, which were removed to show wastage. Source: Nalco Chemical Company More
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Published: 01 January 2015
Fig. 15.21 Titanium tube bundle for heat exchanger More
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Published: 01 November 2007
Fig. 3.21 Scanning electron micrograph (backscattered electron image) showing the oxide scales formed on the outside diameter of the heat-exchanger tube (from the same batch of tubes that showed surface chromium depletion) exposed to air for 6 months. Energy-dispersive x-ray spectroscopy (EDX More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
...: Ref 8 Fretting corrosion has been a continuing problem in nuclear reactors. The condition is found on heat-exchanger tubes and on fuel elements. In both cases, long, flexible tubes are in contact with support surfaces and subjected to vibrations generated by fluid flow as the coolant flows...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220077
EISBN: 978-1-62708-341-6
... is passed through the tubes of a “water-to-water” exchanger, cooling the distilled water but not mixing with it. The temperature-demand valve remains connected to the tap waterline. With small induction heaters (7.5 kW or less), water-to-air heat exchangers, similar in construction to an automotive radiator...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2024
DOI: 10.31399/asm.tb.hisppa.t56110135
EISBN: 978-1-62708-483-3
... the field. Fig. 11.54 Fork inductor coil comprised of two hairpin coils that included magnetic yokes. Courtesy of eldec Copper Tube Braze Joints in a Heat Exchanger Induction brazing was used to join copper to the copper tube extension of a heat exchanger. The heat-exchanger tubes were...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... in water also lead to the fouling of heat transfer surfaces and eventually lead to failure of the tubes by overheating ( Ref 7.1 ). Therefore, quality control of the boiler water is of utmost importance and can be ensured through control of the chemistry of the water entering the boiler. The purposes...