3D CFD analysis of subcooled flow boiling heat transfer with hypervapotron configurations for ITER first wall designs

Ying, Alice; Zhang, H.; Youchison, D.L.; Ulrickson, M.

doi:10.1016/j.fusengdes.2010.03.040

Cited by 9 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, a number of research groups have independently begun to use Computational Fluid Dynamics (CFD) methods to assess theoretically the HyperVapotron heat transfer mechanisms [12][13][14][15][16][17][18]. Whilst these methods have shared a number of similarities, the submodelling and overall objectives have differed.…”

Section: Introductionmentioning

confidence: 99%

Computational modelling of the HyperVapotron cooling technique

Milnes

Burns

Drikakis

2012

Fusion Engineering and Design

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Computational modelling of the HyperVapotron cooling technique

Milnes

Burns

Drikakis

2012

Fusion Engineering and Design

View full text Add to dashboard Cite

“…During the design process of the cooling jacket, the internal cooling fins serve as hypervapotron elements and the outer dimensions are maintained in accordance with vacuum tubes. A literature survey helped finalize the fins [14][15][16][17][18][19][20].…”

Section: Design and Modelingmentioning

confidence: 99%

“…Validation is a crucial step prior to discussing results. As part of the model validation process, a few references [17,19,20,30] were reviewed and their simulation setup and results were compared to those listed below. This simulation makes use of the RPI wall boiling model and various sub-models (bubble diameter, bubble detachment).…”

Section: Validationmentioning

confidence: 99%

“…Kim used a similar simulation setup and the same reference (Milnes et al [17]) for his 2D CFD analysis of HV ion dumps, as described in section 3 of his paper [19]. In addition, the results obtained for the 2D CFD analysis of the cooling jacket of the vacuum tube have been validated against the simulation results of Ying [20]. In addition, the use of ANSYS CFX software for boiling heat transfer is supported by Vyskocil et al [30], where it is stated that ANSYS CFX can be used to simulate boiling heat transfer with bubble formations and validated with experimental data.…”

Section: Validationmentioning

confidence: 99%

“…The HV cooling fins of the tube jacket have a fin width of 3 mm, a cavity width of 3 mm, and a height of 4 mm. Ying's [20] HV fins have dimensions of 3 mm fin width, 3 mm cavity width, and 2 mm height. To validate the below results, a 2 mm tall HV fin model was created.…”

Section: Validationmentioning

confidence: 99%

See 2 more Smart Citations

Design and analysis of cooling jacket developed for vacuum power tubes by multiphase cooling

Anand,

Lakhera

2023

Eng. Res. Express

View full text Add to dashboard Cite

The vacuum tubes are used extensively in electronic industries. The MW level of vacuum tube are used in RF amplifiers and microwave sources in different sectors like defence, nuclear energy, satellites and medical diagnostics. The first step in the indigenous development of MW level of vacuum tube is the design of its cooling jacket. The cooling jacket of vacuum tubes use hypervapotron (HV) fins which are known for providing efficient cooling in compact space. The key objectives of this paper are to finalize the jacket's construction material, evaluate the cooling jacket's heat transfer performance at the MW level of RF (radiofrequency) power, and forecast safe operating conditions for given conditions of high heat flux and water flow rates. In this design, the vacuum tubes' external dimensions are taken into consideration when designing the cooling jacket. ETP copper (Electrolytic Tough Pitch copper) and copper-chromium-zirconium (CuCrZr) are likely materials for the jacket's construction. For the aforementioned design of the cooling jacket, FEA (Finite Element Analysis) simulations using a steady-state thermal module and computational fluid dynamics (CFD) simulations using an ANSYS CFX module are described for flow rates of 15, 30, and 60 lpm (liters per minute) and the heat flux 1, 2, 4, and 6 MW/m2. The results of CFD and FEA simulations are found to be in close agreement. A small deviation in results is seen after the start of nucleate boiling. 30 and 60 lpm are desirable flow rates for high heat flux values greater than 2 MW/m2. CuCrZr is the ideal material for a cooling jacket's construction as it has safe working temperature limit of 350 °C at high heat flux values. Also, 15 lpm should be avoided while using this cooling jacket at heat flux values greater than or equal to 6 MW/m2.

show abstract

CHF prediction model research for flat and hypervapotron heating surface in subcooled flow nucleate boiling

Meng

Zhong

2015

Annals of Nuclear Energy

View full text Add to dashboard Cite

3D CFD analysis of subcooled flow boiling heat transfer with hypervapotron configurations for ITER first wall designs

Cited by 9 publications

References 10 publications

Computational modelling of the HyperVapotron cooling technique

Computational modelling of the HyperVapotron cooling technique

Design and analysis of cooling jacket developed for vacuum power tubes by multiphase cooling

CHF prediction model research for flat and hypervapotron heating surface in subcooled flow nucleate boiling

Contact Info

Product

Resources

About