Heat transfer to air-water two-phase flow in slug/churn region
- AEA Technology, Harwell (United Kingdom). Heat Transfer and Fluid Flow Service
- Lehigh Univ., Bethlehem, PA (United States). Dept. of Chemical Engineering
Measured heat transfer data for air-water two-phase flow in the slug/churn flow region are reported. The measurements were obtained from a 1.3 m tall, 15.7 mm diameter vertical tube test-section. It is observed that the data exhibit different heat transfer characteristics to those predicted by the standard correlations for the convective component of flow boiling heat transfer. Comparison with the predictions of a slug flow model for evaporation shows a significant overprediction of the data. The reason for the overprediction is attributed to the sensible heating requirement of the gas phase. The slug flow model is therefore suitably modified for non-evaporating two-phase flow. This specially adapted model is found to give reasonably good predictions of the measured data.
- OSTI ID:
- 428079
- Report Number(s):
- CONF-960815-; ISBN 0-7918-1508-0; TRN: IM9708%%408
- Resource Relation:
- Conference: 31. national heat transfer conference, Houston, TX (United States), 3-6 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of ASME proceedings of the 31. national heat transfer conference: Volume 4. HTD-Volume 326; Witte, L. [ed.] [Univ. of Houston, TX (United States)]; Singer, R.M. [ed.] [Argonne National Lab., IL (United States)]; Peterson, P.F. [ed.] [Univ. of California, Berkeley, CA (United States)] [and others]; PB: 241 p.
- Country of Publication:
- United States
- Language:
- English
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