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Numerical analysis of buoyancy effect and heat transfer enhancement in flow of supercritical water through internally ribbed tubes.

Author(s) : LI Z., WU Y., TANG G., et al.

Type of article: Article

Summary

Heat transfer to supercritical water in vertical Internally Ribbed Tubes (IRT) with various geometries was numerically investigated in a range of p?=?25?MPa, Tb?=?590?~?700?K, G?=?100?~?1000?kg·m-2·s-1, q?=?200?~?800?kW/m2 and q/G?=?0.33?~?3?kJ/kg. The Shear-Stress Transport k–? (SST) model was employed to solve the turbulent flow and conjugate heat transfer. In IRT with different rib geometries, buoyancy-induced deterioration of heat transfer did not occur and buoyancy forces continuously enhanced heat transfer at Bo?

Details

  • Original title: Numerical analysis of buoyancy effect and heat transfer enhancement in flow of supercritical water through internally ribbed tubes.
  • Record ID : 30017633
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 98
  • Publication date: 2016/04/05
  • DOI: http://dx.doi.org/10.1016/j.applthermaleng.2016.01.007

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