Modeling the full-range thermal-hydraulic characteristics and post-dryout deviation from thermodynamic equilibrium in once-through steam generators

Shi, Jianxin; Sun, Baozhi; Yu, Xintian; Zhang, Peng; Song, Fuyuan

doi:10.1016/j.ijheatmasstransfer.2017.02.007

Cited by 27 publications

(2 citation statements)

References 30 publications

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“…Based on the treatment of direct contact heat transfer between the wall and droplets, the hysteresis phenomenon of the flow boiling curve was obtained and explained by the Leidenfrost effect. In addition to these modeling works, Li and Anglart (2016), Shi et al (2017), andFan et al (2020) simulated some interesting features of post-dryout heat and mass transfer (e.g., vapor temperature and velocity profile, droplet behaviors) through the CFD approach. However, this kind of approach is computationally expensive, and the models applied in the CFD still need quite extensive knowledge of the physical phenomena to improve the prediction.…”

Section: State Of the Art Of Experiments Theoretical Models And Fluid-to-fluid Modelingmentioning

confidence: 99%

An Innovative Investigation on Fluid-to-Fluid Modeling of Post-Dryout Heat Transfer in Thermal Energy Systems

et al. 2022

Front. Energy Res.

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Post-dryout heat transfer is an important thermal hydraulics phenomenon happening in the loss-of-coolant accident of water-cooled nuclear reactors and the off-design conditions of water-cooled ceramic breeder blanket in fusion reactors. It is necessary to research the flow and heat transfer mechanisms of post-dryout. To economically and comprehensively study on the post-dryout heat transfer characteristics, this work conducted fluid-to-fluid modeling research on water and R-134a data banks by using Buckingham dimensional analysis methodology. In addition, a new interpolation method was developed and verified to make the scaling between the two data banks possible. Finally, a scaling method of post-dryout heat transfer was proposed and assessed by using experimental data. The results showed that the obtained scaling method is reliable in certain conditions.

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Section: State Of the Art Of Experiments Theoretical Models And Fluid-to-fluid Modelingmentioning

confidence: 99%

An Innovative Investigation on Fluid-to-Fluid Modeling of Post-Dryout Heat Transfer in Thermal Energy Systems

et al. 2022

Front. Energy Res.

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“…Mali et al [ 57 ] studied pressure drop in vertical tubes for a boiler at high pressure, using the Eulerian–Eulerian model and dividing the length of the tube into different sections regarding vapor fraction. Wang et al [ 80 ] and Shi et al [ 81 , 82 ] used de RPI wall boiling model proposed by Kurul and Podowski [ 83 ] to simulate a particular region of an evaporator, taking advantage of the periodic distribution of the tubes inside the shell to predict the thermal-hydraulic characteristics of the tube. Mohammed et al [ 84 ] used the VOF model to simulate the evaporation and condensation of the acetone in a horizontal circular tube.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and CFD Analysis of Pressure Drop in an ORC Boiler for a WHRS Implementation

Paz

Suárez

Cabarcos

et al. 2022

Sensors

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Waste heat dissipated in the exhaust system of a combustion engine represents a major source of energy to be recovered and converted into useful work. The Waste Heat Recovery System (WHRS) based in an Organic Rankine Cycle (ORC) is an approach for recovering energy from heat sources, achieving a significant reduction in fuel consumption and, as a result, exhaust emissions. This paper studies pressure drop in an ORC shell-and-tubes boiler for a WHRS implementation experimentally and with computational simulations based on a 1-dimensional heat transfer model coupled with 3D calculations. An experimental database is developed, using ethanol in a pressure range of 10–15 absolute bar as working fluid, with mass fluxes inside the tubes in the range of 349.31 kg/s-m2 and 523.97 kg/s-m2, and inlet temperatures in the range of 60 °C and 80 °C. Thus, the friction factor of different regions of the boiler were estimated using both CFD simulations, experimental data, and bibliographic correlations. Simulations of operating points and the results of the experimental test bench showed good agreement in pressure drop results, with a mean absolute error of 15.47%, without a significant increment in the computational cost.

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Research on Boiling and Coupled Heat Transfer of OTSG with Drift Flow Single Fluid Model

Zhang

Liu

et al. 2023

Springer Proceedings in Physics

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Modeling the full-range thermal-hydraulic characteristics and post-dryout deviation from thermodynamic equilibrium in once-through steam generators

Cited by 27 publications

References 30 publications

An Innovative Investigation on Fluid-to-Fluid Modeling of Post-Dryout Heat Transfer in Thermal Energy Systems

An Innovative Investigation on Fluid-to-Fluid Modeling of Post-Dryout Heat Transfer in Thermal Energy Systems

Experimental Investigation and CFD Analysis of Pressure Drop in an ORC Boiler for a WHRS Implementation

Research on Boiling and Coupled Heat Transfer of OTSG with Drift Flow Single Fluid Model

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