Experimental investigation on the distribution uniformity and pressure drop of perforated plate distributors for the innovative spray-type packed bed thermal storage (Open Access)--颗粒学报PARTICUOLOGY

Lin, L., Wang, L., Lin, X., Xie, N., & Chen, H. (2022). Experimental investigation on the distribution uniformity and pressure drop of perforated plate distributors for the innovative spray-type packed bed thermal storage. Particuology, 61, 60-73. https://doi.org/10.1016/j.partic.2021.05.003

Experimental investigation on the distribution uniformity and pressure drop of perforated plate distributors for the innovative spray-type packed bed thermal storage (Open Access)

Lin Lin ^{a b}, Liang Wang ^{a b c}, Xipeng Lin ^{a b c}, Ningning Xie ^{d e *}, Haisheng Chen ^{a b c}^*

a Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
b University of Chinese Academy of Sciences, Beijing 100049, China
c Dalian National Laboratory for Clean Energy, Chinese Academy of Sciences, Dalian 116023, China
d National Energy Large Scale Physical Energy Storage Technologies R&D Center of Bijie High-tech Industrial Development Zone, Guizhou 551712, China
e Institute of Science and Technology, China Three Gorges Corporation, Beijing 100038, China

10.1016/j.partic.2021.05.003

Volume 61, February 2022, Pages 60-73

Received 30 January 2021, Revised 10 April 2021, Accepted 3 May 2021, Available online 30 May 2021, Version of Record 27 October 2021.

E-mail: xie_ningning@ctg.com.cn; chen_hs@iet.cn

Highlights

• Perforated plate distributor for spray-type packed bed was proposed.

• Distribution and pressure drop of distributor were measured experimentally.

• Effects of fluid, velocity and orifice diameter on distribution were studied.

• Moderate pressure drop corresponded to more uniform distribution.

• Design criterion for perforated plate distributor was obtained.

Abstract

As an innovative thermal energy technology, the spray-type packed bed has advantages of high efficiency and low cost. A liquid distributor is the key component for the spray-type packed bed for scattering heat-transfer liquid drops evenly. In this study, the distribution performance and pressure drop of the perforated plate distributors of different orifice diameters were studied experimentally. The experimental results indicate that orifice diameter has a greater effect on the distribution performance compared to flow rate. With an increase in flow rate, the flow pattern through the distributor changes from the uncovered drop to the covered drop and then to the jet flow. The covered drop pattern shows the best performance with a good distribution and a small pressure drop simultaneously, which is the design and optimization principle of the distributor for a spray-type packed bed.

Graphical abstract

Keywords

Spray-type packed bed; Perforated plate distributor; Distribution; Pressure drop; Thermal energy storage

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