Loading...

Thermal–hydraulic analysis of nanofluids as the coolant in supercritical water reactors

Rahimi, M. H ; Sharif University of Technology | 2017

1011 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.supflu.2017.05.017
  3. Publisher: Elsevier B.V , 2017
  4. Abstract:
  5. Supercritical water reactor is one of the generation IV reactors which is basically a creative mixture of conventional PWRs and supercritical pressure steam boilers. Application of nanoparticles provides an effective way of improving heat transfer characteristics of conventional coolants; thus, utilization of a nanofluid coolant in the conceptual design of this reactors is quite reasonable and inevitable. Reactor coolant at supercritical pressure dose not experience any phase change and is heated up to 500 °C in three pass core design. In this paper, thermal–hydraulic analysis of applying a water base Al2O3 nanofluid with different nanoparticle mass fractions were investigated using a porous media approach. Calculations showed that, utilization of nanofluid can enhance the core outlet temperature and increases the heat transfer coefficient in Super-heater zones. © 2017 Elsevier B.V
  6. Keywords:
  7. Nanofluid ; Porous media approach ; Supercritical water reactors ; Thermal–hydraulic analysis ; Boilers ; Conceptual design ; Coolants ; Engines ; Heat transfer ; Light water reactors ; Nanoparticles ; Porous materials ; Pressurized water reactors ; Conventional coolants ; Core outlet temperature ; Generation IV reactors ; Heat transfer characteristics ; Hydraulic analysis ; Nanofluids ; Super-critical pressures ; Nanofluidics
  8. Source: Journal of Supercritical Fluids ; Volume 128 , 2017 , Pages 47-56 ; 08968446 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0896844617303327