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A general expression for the correlation of rates of transfer and other phenomena
Abstract
The expression Y = (1 + Z n)1/n where Y and Z are expressed in terms of the solutions for asymptotically large and small values of the independent variable is shown to be remarkably successful in correlating rates of transfer for processes which vary uniformly between these limiting cases. The arbitrary exponent n can be evaluated simply from plots of Y versus Z and Y/Z versus 1/Z. The expression is quite insensitive to the choice of n and the closest integral value can be chosen for simplicity. The process of correlation can be repeated for additional variables in series. Illustrative applications are presented only for flow, conduction, forced convection, and free convection, but the expression and procedure are applicable to any phenomenon which varies uniformly between known, limiting solutions.
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Cited by
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Churchill, S. W., & Chu, H. H. S. (1975) · International Journal of Heat and Mass Transfer · doi:10.1016/0017-9310(75)90243-4 · Cited by 2,060
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Ghiaasiaan, S. M. (2011) · Cambridge University Press eBooks · doi:10.1017/cbo9780511800603 · Cited by 788
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Thome, J. R., Dupont, V., & Jacobi, A. M. (2004) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2004.01.006 · Cited by 686
Review of thermal energy storage technologies based on PCM application in buildings
Pomianowski, M., Heiselberg, P., & Zhang, Y. (2013) · Energy and Buildings · doi:10.1016/j.enbuild.2013.08.006 · Cited by 474
Modelling and experimental validation of the hot-gas defrost process of an air-cooled evaporator
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Metadata
- Authors
- Churchill, S. W., & Usagi, R.
- Venue
- AIChE Journal
- Publisher
- Wiley
- Published
- 1972-11
- Volume
- 18
- Issue
- 6
- Pages
- 1121-1128
- ISSN
- 0001-1541 (ISSN-L)
- 1547-5905
- OpenAlex
- W2137661976
- Cited by
- 848
- References
- 0
- FWCI
- 16.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Churchill, S. W., & Usagi, R. (1972). A general expression for the correlation of rates of transfer and other phenomena. AIChE Journal. https://doi.org/10.1002/aic.690180606
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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