Experimental investigation on flow instability of forced circulation in a mini-rectangular channel under rolling motion

Yu, Zeting; Tan, Sichao; Yuan, Hongsheng; Chen, Chong; Chen, Xianbing

doi:10.1016/j.ijheatmasstransfer.2015.09.048

Cited by 31 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 with the arrow. After the flow excursion, the inlet mass flux and pressure drops fluctuate with high frequency and relatively small amplitude while the wall temperatures hardly oscillate, which is proved to be the characteristics of annular flow in our previous work [20].…”

Section: Ledinegg Instability (Led)supporting

confidence: 51%

“…Actually, in most experimental conditions, the OFI could not be distinguished from the boiling incipience. Wang et al [28] and Yu et al [20] believe that the boiling incipience might be considered as the condition that the experimental curve detaches from the single-phase flow and heat transfer characteristics curve which are calculated from Wang et al [29,30]. The comparison between boiling incipience and OFI is shown in Fig.…”

Section: Marginal Stability Boundaries (Msb)mentioning

confidence: 98%

See 1 more Smart Citation

Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Yuan

Chen

et al. 2016

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

Section: Ledinegg Instability (Led)supporting

confidence: 51%

Section: Marginal Stability Boundaries (Msb)mentioning

confidence: 98%

Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Yuan

Chen

et al. 2016

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

“…The occurrence of instability is mainly determined by the thermal conditions of the system rather than the influence of ocean conditions. Yu et al (2016) carried out an experimental study on the instability of forced circulation in a narrow rectangular channel under rocking conditions, and obtained the characteristics and evolution of the trough-shaped pulsation and compound pulsation under rocking conditions, and confirmed the observation of the compound pulsation in the experiment. The generation is the result of the superposition of trough-type pulsation and pressure drop-type pulsation.…”

Section: Research On Flow Instability and Chf In Ocean Conditionsmentioning

confidence: 66%

Research Progress of Reactor Thermal-Hydraulic Characteristics Under Ocean Conditions in China

Xiao

2020

Front. Energy Res.

View full text Add to dashboard Cite

Floating nuclear power plants are affected by sea wind and waves, which will produce various forms of movement, and cause changes in the thermal and hydraulic characteristics of the reactor core and threaten the safety of reactor operation. In response to the R&D and design requirements of floating nuclear power plants, the research progress on the thermal-hydraulic characteristics of reactors under ocean conditions in China are reviewed in this paper. The emphasis is put on flow heat transfer, bubble behavior, flow instability, and critical heat flux under ocean conditions. Research progresses as well as the issues that need to be focused on in the future research are discussed in detail.

show abstract

“…For years, many scholars have carried out research on the mechanism of two-phase flow instability in a phase-change cooling system from both macro-scale [14,15] and microscale channels [16][17][18][19]. Ding et al [14] carried out an experimental study on the pressure pulsation caused by flow boiling in a horizontal pipe with a diameter of 10.9 mm and found three types of pulsation: pressure drop type, density wave type, and thermal type.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Heat Transfer Performance of Pump-Assisted Capillary Phase-Change Loop

et al. 2021

View full text Add to dashboard Cite

To overcome the two-phase flow instability of traditional boiling heat dissipation technologies, a porous wick was used for liquid-vapor isolation, achieving efficient and stable boiling heat dissipation. A pump-assisted capillary phase-change loop with methanol as the working medium was established to study the effect of liquid-vapor pressure difference and heating power on its start-up and steady-state characteristics. The results indicated that the evaporator undergoes four heat transfer modes, including flooded, partially flooded, thin-film evaporation, and overheating. The thin-film evaporation mode was the most efficient with the shortest start-up period. In addition, heat transfer modes were determined by the liquid-vapor pressure difference and power. The heat transfer coefficient significantly improved and the thermal resistance was reduced by increasing liquid-vapor pressure as long as it did not exceed 8 kPa. However, when the liquid-vapor pressure exceeded 8 kPa, its influence on the heat transfer coefficient weakened. In addition, a two-dimensional heat transfer mode distribution diagram concerning both liquid-vapor pressure difference and power was drawn after a large number of experiments. During an engineering application, the liquid-vapor pressure difference can be controlled to maintain efficient thin-film evaporation in order to achieve the optimum heat dissipation effect.

show abstract

Experimental investigation on flow instability of forced circulation in a mini-rectangular channel under rolling motion

Cited by 31 publications

References 24 publications

Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Two-phase flow instabilities of forced circulation at low pressure in a rectangular mini-channel

Research Progress of Reactor Thermal-Hydraulic Characteristics Under Ocean Conditions in China

Experimental Study on the Heat Transfer Performance of Pump-Assisted Capillary Phase-Change Loop

Contact Info

Product

Resources

About