The Effect of Vibration on Heat Transfer from a Horizontal Cylinder in Forced Convection PDF Download
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Author: Edward Fred Schuman
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
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Author: Edward Fred Schuman
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
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Author: Raymond Constantine Martinelli
Publisher:
ISBN:
Category : Cylinders
Languages : en
Pages : 130
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 75
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The purpose was to determine the effect of diameter, temperature difference, and vibration intensity on the free convective heat transfer rate from horizontal cylinders subjected to transverse vibrations in air. The diameters of the cylinders were 0.085 and 0.25 inches. They were vibrated over a frequency range of 0 to 88 cycles per second and an amplitude range of 0 to 0. 35 inches. The surface temperature ranged from 138 to 201 degrees Fahrenheit, and the maximum vibration intensity was 29 in./sec. Above vibration intensities of 12 in./sec, the variation of the heat transfer rate for both cylinders followed the forced convection curve recommended by McAdams, and the value of the heat transfer rate was independent of the temperature difference. For a given temperature difference and vibration intensity, the value of the heat transfer rate increased as the cylinder diameter decreased. An interferometer study showed that the boundary layer was turbulent above vibration intensities of 12 in./sec.
Author: Robert M. Russ
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 75
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A number of investigations have been conducted with horizontal cylinders in free convection to determine the effect of vibratio on he heat tr nsfer r te. This s udy was co tinuatio using high r vibration inte sities (PRODUCT OF A PLITUD AND FREQUENCY). A attempt was made to correlat the change in he heat transfer rate with that of forced co vection. The inv stigation was conduct d with three different size cylinders vibrated transversly in air T e diameters of the cylinders were 3/4 1/4, and 0.085 inches. The investigation wa con uc ed over a frequency range of 0 to 130 cps, an an a plitu ra ge of o 0.165 inc es. The urface temperature of the cylinders was varied over a range of 125 to 167 F. Results showed that the effect of vibration on the eat transfer rate for particular cylinder is a function only of the vibr tion i ten i y, an tha the he tr sfer r e is increa ed over 300% at high vibration intensities. From an interferometer tudy, the boundary layer is quite complex and goes throug several transitio a the vibration i t n i y is incre sed T HE BOUN ARY LAYER DOES APPEAR SIMILAR TO THAT OF FORCED CONVECTION A VIBRATION INTENSITIES IN EXCESS OF!
Author: Warren Arthur Grossetta
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages :
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Author: John Joseph Holden
Publisher: Hassell Street Press
ISBN: 9781013884559
Category :
Languages : en
Pages : 118
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This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: M. Anandha Rao
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 150
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Author: John W. Ogle
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 146
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Author: John E. Hutton (CAPT, USAF., Jr)
Publisher:
ISBN:
Category : Cylinders
Languages : en
Pages : 56
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Author: Nathan Jerome Caiola
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 148
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