Nuclear Engineering and Technology

  • 제40권2호
  • /
  • Pages.133-138
  • /
  • 2008
  • /
  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
권호 표지
DOI QR코드

DOI QR Code

CRITICAL FLOW EXPERIMENT AND ANALYSIS FOR SUPERCRITICAL FLUID

  • Mignot, Guillaume (Nuclear Engineering and Engineering Physics Department, University of Wisconsin) ;
  • Anderson, Mark (Nuclear Engineering and Engineering Physics Department, University of Wisconsin) ;
  • Corradini, Michael (Nuclear Engineering and Engineering Physics Department, University of Wisconsin)
  • 발행 : 2008.03.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The use of Supercritical Fluids(SCF) has been proposed for numerous power cycle designs as part of the Generation IV advanced reactor designs, and can provide for higher thermal efficiency. One particular area of interest involves the behavior of SCF during a blowdown or depressurization process. Currently, no data are available in the open literature at supercritical conditions to characterize this phenomenon. A preliminary computational analysis, using a homogeneous equilibrium model when a second phase appears in the process, has shown the complexity of behavior that can occur. Depending on the initial thermodynamic state of the SCF, critical flow phenomena can be characterized in three different ways; the flow can remain in single phase(high temperature), a second phase can appear through vaporization(high pressure low temperature) or condensation(high pressure, intermediate temperature). An experimental facility has been built at the University of Wisconsin to study SCF depressurization through several diameter breaks. The preliminary results obtained show that the experimental data can be predicted with good agreement by the model for all the different initial conditions.

키워드

참고문헌

  1. V. DOSTAL, M.J. DRISCOLL, P. HEJZLAR,'A supercritical carbon dioxide cycle for NGNP', MIT-ANP-TR-1000 (2004)
  2. D.H. LEE, D. SWINNERTON, 'Evaluation of critical flow for supercritical steam-water', EPRI-NP-3086 (1983)
  3. S.A. KLEIN, 'Engineering Equation Solver', professional version 6.738, University of Wisconsin (1992-2003)
  4. J. KESTIN, J.V. SENGERS, B. KANGMAR-PARSI, J.M.H. LEVELT SENGERS, 'Thermophysical Properties of Fluid H2O,' J. Phys. Chem. Ref. Data, 13, 175 (1984) https://doi.org/10.1063/1.555707
  5. R. SPAN, W. WAGNER 'A New Equation of State for Carbon Dioxide Covering the Fluid Region form the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa', J. Phys. Chem. Ref. Data, 25 (1996), 6
  6. J.H. MCFADDEN et al., 'RETRAN-02- A program for transient thermal-hydraulic analysis of complex fluid flow systems', NP-1850-CCMA (1984), Vol.1, Rev. 2

피인용 문헌

  1. First and second law analysis of an ejector expansion Joule-Thomson cryogenic refrigeration cycle vol.36, pp.2, 2012, https://doi.org/10.1002/er.1800