Numerical investigation of the cavitation performance of annular jet pumps with different profiles of suction chamber and throat inlet

Xiao-dong, Wang; Chen, Yunliang; Li, Mengqiu; Xu, Yong; Wang, Bo; Dang, Xiaoqiang

doi:10.1080/19942060.2020.1824875

Cited by 8 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It must be noted that the suction flow rate is regarded as one of the most significant parameters in determining the liqu id ejector's performance. Therefore, obtained numerical results are presented along with the experimental data of Bhutada and Pangarkar [23], Cai's [24] and the results of Wang's numerical research [25]. Figure 5 shows comparison of Eulerian-Eulerian Method which indicates a good agreement and similar trend.…”

Section: Validationmentioning

confidence: 72%

See 1 more Smart Citation

Numerical Study of Water-air Ejector using Mixture and Two-phase Models

Assari

Tabrizi

Beik

et al. 2022

IJE

View full text Add to dashboard Cite

Section: Validationmentioning

confidence: 72%

“…Figure 5 shows comparison of Eulerian-Eulerian Method which indicates a good agreement and similar trend. Further, the suction flow ratio and the pressure ratio comparison with reported data in literature [24,25] are illustrated in Table 3. As can be observed, the maximum error is 16.1% for the flow rate ratio.…”

Section: Validationmentioning

confidence: 97%

Numerical Study of Water-air Ejector using Mixture and Two-phase Models

Assari

Tabrizi

Beik

et al. 2022

IJE

View full text Add to dashboard Cite

“…However, according to the efficiency range, the jet pump still faces the inefficiency problem. The problem is commonly caused by cavitation [3][4][5][6], recirculation [7,8], mixing [9], and separation [10] in the process. The phenomena can be analysed by measuring the wall pressure gradient or by capturing the phenomena.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the recirculation appears and reduces the secondary flow. Wang et al [6] compared different profiles of the suction chamber and throat-entry i.e. polygonal and streamline profiles to reduce the effect of cavitation on water jet pump performance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An experimental study of the effect of the projection ratio and throat-aspect ratio on the efficiency and loss coefficient of a water jet pump

Helios

Asvapoositkul

2021

JMES

View full text Add to dashboard Cite

This study focuses on the influence of dimensionless geometry parameters on the performance and loss coefficient of the throat and diffuser of the water jet pump apparatus. A water jet pump system was designed for a total of nine experimental cases with three different projection ratios and three throat-aspect ratios . The volumetric and pressure ratios - performance parameters are measured at a constant motive pressure and under varying backpressure. The efficiencies of the water jet pump in each configuration were assessed and compared. It was found that increasing 2 or 3 times of projection ratio degrades efficiency about 2% to 5.5%, respectively. Higher projection ratio ( > 1) expands the water jet diameter, which clogs the secondary flow. Hence, the changes in > 3 may have a significant impact on efficiency degradation. Shorter may cause the loss of kinetic energy in the diffuser, while longer reduces momentum transfer on the secondary flow. Moreover, the changes in and influence friction loss coefficient in the throat and diffuser section, and it reduces with increasing of volumetric ratio. It can be concluded that the appropriate value of projection ratio and throat-aspect ratio plays a role in the kinetic energy dissipation. It is also responsible for the location friction process, at a different volumetric ratio. However, the experimental results denoted the best efficiency and loss coefficient was achieved at a low projection ratio ( = 1) and small throat-aspect ratios ( = 5). The best efficiency of the study was about 23.37%.

show abstract

Study on improving liquid carrying performance of annular jet pump gas well with static mixer

Liang,

Li,

et al. 2023

Energy Science & Engineering

View full text Add to dashboard Cite

In the process of natural gas extraction, the phenomenon of liquid loading will affect the efficiency of gas well extraction and reduce the life of the well. Compared with conventional drainage gas extraction technology, the jet pump can not only reduce the bottom back pressure and ensure the stable production of gas reservoirs but also promote the final recovery rate. Since the jet pump relies on the interaction between fluid particles to transfer energy, the energy loss is large and the efficiency is low. To maximize the advantages of the gas‐driven jet pump, this study innovatively combines a static mixer with an annular jet pump. Utilizing the cyclonic effect produced by the static mixer, the original gas‐liquid axial motion is transformed into a stronger vortex motion, and the liquid droplets are changed into a liquid film that is easier to carry, which significantly improves the discharge efficiency of the jet pump. This study uses a combination of numerical simulation and experimental analysis to compare the associated effects of the new annular jet pump (NAJP) and the conventional annular jet pump (CAJP) on the liquid‐carrying performance of gas wells in terms of cyclonic effect, droplet breakage ratio, and pump efficiency. The results show that, compared with CAJP, NAJP increases the mass flow rate of the sucked fluid. The droplet breakage ratio increases by 15.4% year‐on‐year, while the critical liquid‐carrying flow rate is reduced by about 10.7%, resulting in a maximum pumping efficiency of 37%, an increase of about 30.7% year‐on‐year. At the same time, the reduction of the energy coefficient means lower energy consumption. In summary, NAJP is better than CAJP in terms of liquid‐carrying effect and efficiency.

show abstract

Numerical investigation of the cavitation performance of annular jet pumps with different profiles of suction chamber and throat inlet

Cited by 8 publications

References 23 publications

Numerical Study of Water-air Ejector using Mixture and Two-phase Models

Numerical Study of Water-air Ejector using Mixture and Two-phase Models

An experimental study of the effect of the projection ratio and throat-aspect ratio on the efficiency and loss coefficient of a water jet pump

Study on improving liquid carrying performance of annular jet pump gas well with static mixer

Contact Info

Product

Resources

About