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A population balance approach to direct-contact secondary refrigerant freezing (1986)

Byrd, L. W. ; Mulligan, J. C.

Hoboken, NJ : Wiley-Blackwell

AIChE Journal 32 (1986), S. 1881-1888

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ISSN: 0001-1541

Keywords: Chemistry ; Chemical Engineering

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: A population balance approach is used in developing an analysis of homogeneous freezing in a brine-ice slurry by direct-contact heat transfer to a dispersed secondary refrigerant. Exponential and beta distributions are assumed for the ice crystals and refrigerant droplets, respectively. The effects of freezer pressure (refrigerant temperature), inlet refrigerant drop size, and refrigerant and brine flow rates on well-mixed freezer characteristics are presented.

Additional Material: 7 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/aic.690321114

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Thermoelastic stress analysis applied to fully reversed bending fatigue (2000)

Byrd, L. W. ; Haney, M. A.

Springer

Experimental mechanics 40 (2000), S. 10-14

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ISSN: 1741-2765

Keywords: Thermoelastic stress ; differential thermography ; fully reversed bending ; cantilever beam ; fatigue

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract The thermoelastic effect has been used to study stress distributions in a number of in-plane loading problems. Analysis of the temperature distribution has been largely limited to isotropic one-dimensional approximations with heat transfer through the thickness of the specimen. In sonic fatigue, specimens undergo fully reversed bending with a stress gradient along the length of the specimen as well as through the thickness. This has also been modeled as a one-dimensional heat transfer problem with negligible heat transfer along the specimen length. The authors solve this as a two-dimensional problem for an isotropic material to determine the effect of heat transfer.