Prediction of atomization characteristics of pressure swirl nozzle with different structures

Liu, Jinfan; Feng, Xin; Liang, Hu; Zhang, Weipeng; Hui, Yuanyuan; Xu, Haohan; Yang, Chao

doi:10.1016/j.cjche.2023.05.002

Cited by 8 publications

(1 citation statement)

References 37 publications

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“…Among various geometric parameters of pressure swirl nozzles, the aperture size has the most significant impact on atomization characteristics. Liu et al [10] studied pressure swirl atomizers with different structures using a combined experimental and simulation method. They found that geometric differences significantly affected the atomization characteristics such as spray angle and SMD.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Atomization Characteristics of Swirl Nozzle under Annular Airflow Impingement

Han,

Zhang,

Liu

et al. 2024

Fluids

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Pressure nozzles are widely used in spray drying and other industries. In order to improve the atomization characteristics of pressure cyclone nozzles, a new type of annular jet gas impingement atomization device is developed. We use high-speed imaging and digital image processing and other methods to analyze the spray characteristics of the different annular device configurations (using four, six, and eight tubes) and under different gas–liquid mass flow rates. It is shown that with an increase in the Air–Liquid mass Ratio (ALR), the liquid film breakup process changes from undulating sheet breakup to perforated sheet breakup and the breakup length decreases. The breakup length decreases the most under the condition of six-tube airflow with the range of 31–55%, while the Sauter mean diameter (SMD) basically does not change. With the increase in ALR and the Weber number of liquid (Wel), the droplet size distribution becomes more uniform. The spray characteristics of the atomizer assisted by gas jets reaches the best state when Wel = 4596.3 and m˙g = 1.97 g/s. The experimental conclusions have some guiding significance for the design and optimization of the atomization devices in spray drying towers.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Atomization Characteristics of Swirl Nozzle under Annular Airflow Impingement

Han,

Zhang,

Liu

et al. 2024

Fluids

View full text Add to dashboard Cite

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Research on multiwalled carbon nanotubes spray method for preparing flexible piezoresistive tactile sensor

He,

Xie,

Pang

et al. 2024

J of Applied Polymer Sci

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Flexible piezoresistive tactile sensor (FPTS) is widely used in wearable devices, e‐skin, and so on. However, the performance consistency and durability hinder its widespread application at a larger scale. It is still a challenge to prepare conductive composites with high performance consistency and high durability. In this research, a multiwalled carbon nanotubes (MWCNTs)/polydimethylsiloxane FPTS with high performance consistency and high durability was prepared by a combination of spray and spin coating method. The spray parameters of MWCNTs solution were optimized by numerical simulation, and a self‐developed high pressure spray device was adopted to realize the high‐pressure spray. In the 6000 tensile cycles experiments, the fluctuation of FPTS resistance is less than 5%. The range of prepared FPTS can reach 1.2 kPa, and the sensitivity is 0.8 kPa−1. The results of mouse click and wrist bending tests confirmed that the prepared FPTS can satisfy the detection requirements of wearable devices.

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Study on flow atomization characteristics and structure optimization of swirl nozzle for biodiesel

Jin,

Ma,

et al. 2024

Chemical Engineering Research and Design

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Prediction of atomization characteristics of pressure swirl nozzle with different structures

Cited by 8 publications

References 37 publications

Experimental Study on Atomization Characteristics of Swirl Nozzle under Annular Airflow Impingement

Experimental Study on Atomization Characteristics of Swirl Nozzle under Annular Airflow Impingement

Research on multiwalled carbon nanotubes spray method for preparing flexible piezoresistive tactile sensor

Study on flow atomization characteristics and structure optimization of swirl nozzle for biodiesel

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