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Keywords: heat transfer
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Proceedings Papers

Proc. ASME. ICONE29, Volume 5: Nuclear Safety, Security, and Cyber Security, V005T05A007, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-89437
... Abstract Heat pipe cooled reactors have a promising future in the next generation of reactor design. The heat pipe, which is the core device for heat transfer from the core to the outside, determines the safety of the heat pipe reactor and the efficiency of power generation. In the high...
Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A116, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-93743
... historical review for narrow rectangular thermal-hydraulic characteristics under marine conditions is proposed, including an expansive number of experimental and numerical studies in open literatures for recent decade. The pressure drop and heat transfer characteristics are chiefly clarified in this paper...
Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A064, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-91899
... Abstract As one of the cooling methods for the blanket in a fusion reactor, forced convection using helium gas has been considered as one of the promising candidates. In this study, in order to clarify the effect of tube length on heat transfer for forced flow of helium gas under various...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A031, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-93035
...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-93035 DEVELOPMENT OF A 1D CODE FOR HEAT TRANSFER CHARACTERISTICS OF HELICAL-COILED ONCE-THROUGH STEAM GENERATORS Maolong Liu School of Nuclear Science and Engineering...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7A: Thermal-Hydraulics and Safety Analysis, V07AT07A077, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92278
...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92278 EXPERIMENTAL STUDY ON THE HEAT TRANSFER CHARACTERISTICS OF NONUNIFORM HEATING TUBE BUNDLE CHANNEL Yiming Yan1, Guangming Fan1 Zongkun Li1 1College of Nuclear Science...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7A: Thermal-Hydraulics and Safety Analysis, V07AT07A008, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-89069
... Abstract Heat transfer characteristics of two-layer corium pools under rolling conditions were studied experimentally and numerically in this paper. In the experiments, the test section was designed as a semi-ellipsoidal slice, measuring a span of 1.2m, a total pool depth of 0.32m...
Topics: Heat transfer
Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A055, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-93567
... Abstract Dryout and post-dryout heat transfer experiments in a tight three-rod bundle with spacer grids are carried out at Shanghai Jiao Tong University. The test section is made up of three heated rods with an outer diameter of 15 mm and three unheated components. The pitch-to-diameter ratio...
Proceedings Papers

Proc. ASME. ICONE29, Volume 7B: Thermal-Hydraulics and Safety Analysis, V07BT07A029, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92951
... capacity, which makes the heat transfer phenomenon near the critical point more complicated, even deteriorating. On the other hand, the curved geometry of the spiral pipe leads to a special secondary flow phenomenon in the fluid, which will intensify the heat and mass transfer and improve the heat transfer...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A050, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92791
... and drastic properties variation. The results showed that in the local position of a pitch, temperature and velocity on cross-section presented strong nonuniformity due to the disturbance of corner and symmetry on the side of corner, which showed heat transfer enhancement or weakness on different locations...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A040, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92323
...Proceedings of the 2022 29th International Conference on Nuclear Engineering ICONE29 August 8-12, 2022, Virtual, Online ICONE29-92323 Study on the radiation heat transfer effect of the covered gas space of the pool reactor Xinyue LUO North China Electric Power University Beijing, China Daogang LU...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A046, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-92595
... heat transfer capacity. In order to accurately simulate the turbulent heat transfer of liquid metals in narrow rectangular channels, based on the relevant experimental data, this paper explored suitable numerical simulation methods. First of all, according to the research object, the appropriate...
Proceedings Papers

Proc. ASME. ICONE29, Volume 8: Computational Fluid Dynamics (CFD) and Applications, V008T08A069, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-94479
... considered. For some cases, conjugated heat transfer including pipe walls was modeled. Various sensitivity studies such as mesh sizes, meshing approaches, considered computational domains, initial, inlet, and outlet conditions, and axial conduction in pipe walls were performed. The meshing approach was based...
Proceedings Papers

Proc. ASME. ICONE29, Volume 15: Student Paper Competition, V015T16A016, August 8–12, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICONE29-89611
... Abstract The peculiar heat transfer mechanism of supercritical fluids has been studied for a long time, especially the flow and heat transfer in the tubes. Numerous experiments have demonstrated the three heat transfer modes of supercritical fluids: normal heat transfer, improved heat transfer...
Proceedings Papers

Proc. ASME. ICONE28, Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation, V003T08A014, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64822
... to show the capabilities of the similarity theory when applied to R134a, proposing a rationale to be used in selecting the boundary conditions of experiments in order to make them really representative of the addressed water plant conditions. place supercritical pressures R134a heat transfer...
Proceedings Papers

Proc. ASME. ICONE28, Volume 4: Student Paper Competition, V004T14A005, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-62115
... of water injection on the heat transfer of the molten pool. The simulant of the molten pool contains the low mass fraction of Zirconium (13%). Two water injections are carried out with the same mass flow. When water is injected on the melt surface, the heat flux transferred to water of the first...
Proceedings Papers

Proc. ASME. ICONE28, Volume 2: Nuclear Fuels, Research, and Fuel Cycle; Nuclear Codes and Standards; Thermal-Hydraulics, V002T07A023, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64720
... compares the strength of these two effects in the expansion of a single bubble, and theoretically explains the driving force of the pressure increase in the simulation experiment and the potential flow pattern. coolant-coolant interaction inner pressure bubble expansion velocity heat transfer...
Proceedings Papers

Proc. ASME. ICONE28, Volume 3: Computational Fluid Dynamics (CFD); Verification and Validation; Advanced Methods of Manufacturing (AMM) for Nuclear Reactors and Components; Decontamination, Decommissioning, and Radioactive Waste Management; Beyond Design Basis and Nuclear Safety; Risk Informed Management and Regulation, V003T08A010, August 4–6, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ICONE28-64713
... Abstract In the present paper, the capabilities of a similarity theory for heat transfer to supercritical pressure fluids are further investigated with respect to past work, widening the range of the addressed operating conditions. In particular, experimental data for water at 25 MPa are here...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 1: Beyond Design Basis; Codes and Standards; Computational Fluid Dynamics (CFD); Decontamination and Decommissioning; Nuclear Fuel and Engineering; Nuclear Plant Engineering, V001T03A017, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16732
... Abstract We performed large-eddy simulations by using an open source CFD code, OpenFOAM to examine the performance of large-eddy simulations for examining turbulence heat-transfer processes of forced-convection in a pipe with non-homogeneous thermal boundary conditions; an accurate description...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T12A030, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16456
... Abstract Thermal efficiency and safety of Generation-IV nuclear-power-reactor concept - Supercritical Water-cooled Reactor (SCWR) depend on solid knowledge of specifics of SCW thermophysical properties and heat transfer within these conditions. As a preliminary, but conservative approach...
Proceedings Papers

Proc. ASME. ICONE2020, Volume 3: Student Paper Competition; Thermal-Hydraulics; Verification and Validation, V003T13A001, August 4–5, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICONE2020-16004
... temperature variation pressure drops flow rate heat transfer thermocouples single phase steady state EXPERIMENTAL STUDY OF TEMPERATURE AND HEATING POWER VARIATIONS ON NATURAL CIRCULATION FLOW PHENOMENA IN A CLOSED RECTANGULAR LOOP WITH SINGLE HEATING CHANNEL Solomon BELLO 1,2 , Puzhen GAO 1 , Yuqi...