Results 261 to 270 of about 541,531 (303)
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1990
In the last chapter, induction was used for heating large masses of metal, where the aim was a uniform temperature throughout. There, the possible high in tensity of induction heating was limited by the rate at which the heat could be conducted away from the surface. Surface hardening makes use of this 'disadvantage'.
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In the last chapter, induction was used for heating large masses of metal, where the aim was a uniform temperature throughout. There, the possible high in tensity of induction heating was limited by the rate at which the heat could be conducted away from the surface. Surface hardening makes use of this 'disadvantage'.
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Heat Transfer in Scraped Surface Heat Exchangers
Chemie Ingenieur Technik, 2014AbstractAn den Wänden geschabte Apparate werden großtechnisch häufig als Wärmetauscher für Systeme mit Feststoffbildungen oder hohen Viskositäten eingesetzt. Bei geringen Länge/Durchmesser‐Verhältnissen hat dabei die Rückvermischung einen maßgeblichen Einfluss auf den prozessseitigen Wärmetransport.
Jörg Hillmann, Peter Walzel
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Transactions of the American Society of Mechanical Engineers, 1929
Abstract In view of the dearth of reliable data on the emissivity coefficients of various surfaces at the lower temperatures met with in refrigeration and heat-insulation work, the author undertook on investigation of the subject at Mellon Institute of Industrial Research, Pittsburgh.
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Abstract In view of the dearth of reliable data on the emissivity coefficients of various surfaces at the lower temperatures met with in refrigeration and heat-insulation work, the author undertook on investigation of the subject at Mellon Institute of Industrial Research, Pittsburgh.
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2000
After leaving the furnace the flue gas enters the convective section of the boiler, where it cools further by transferring heat to water, steam, and in some cases to the combustion air. The principal mode of heat transfer in this section is forced convection.
Prabir Basu, Cen Kefa, Louis Jestin
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After leaving the furnace the flue gas enters the convective section of the boiler, where it cools further by transferring heat to water, steam, and in some cases to the combustion air. The principal mode of heat transfer in this section is forced convection.
Prabir Basu, Cen Kefa, Louis Jestin
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Heat recovery without heat transfer surfaces
Journal of Heat Recovery Systems, 1983Abstract Most heat recovery systems involve heat transfer surfaces. This fact means high initial investment, high maintenance costs and efficiency decrease because of the fouling of the heat transfer surfaces. This article describes the working principles of a surface-less heat recovery system, the mathematical approach to treat such systems and ...
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Surface Heat Treatment and Surface Engineering
2004Postupci modificiranja površine čelika (Opće prednosti ; Površinsko kaljenje ugrijavanjem plamenom ; Površinsko kaljenje indukcijskim ugrijavanjem ; Modifikacija površine pomoću LASER-skog snopa ; Fizikalne osnove toplinske obrade laserom ; Provedba površinske toplinske obrade laserom ; Postupak toplinske obrade laserskim snopom ; Ispitivanje svojstava
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Numerical Heat Transfer, Part A: Applications, 2007
Laser irradiation of a gold surface via volumetric absorption and surface heat flux heating are examined. Electron and lattice site temperature increases are predicted and compared for two heating situations. Time-dependent pulse intensity is used to simulate the temporal variation of an actual laser pulse.
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Laser irradiation of a gold surface via volumetric absorption and surface heat flux heating are examined. Electron and lattice site temperature increases are predicted and compared for two heating situations. Time-dependent pulse intensity is used to simulate the temporal variation of an actual laser pulse.
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Heat Transfer to a Vaporizing, Ablating Surface
Journal of the Aerospace Sciences, 1959must be found. In the simple case of separation ahead of a step, the reattachment point is fixed, and the oblique-shock theory gives the required second relation between separation-point location and pressure rise. For most other problems, however, the reattachment point is not known.
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Novel sandwich structural electric heating coating for anti-icing/de-icing on complex surfaces
Surface and Coatings Technology, 2020Huawei Chen +2 more
exaly