Determination of Pressure Drop Correlation for Air Flow through Packed Bed of Sinter Particles in Terms of Euler Number

Junsheng Feng, Liang Zhao, Haitao Wang, Zude Cheng, Yongfang Xia and Hui Dong
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Junsheng Feng: School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Liang Zhao: School of Metallurgy, Northeastern University, Shenyang 110819, China
Haitao Wang: School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Zude Cheng: School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Yongfang Xia: School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230601, China
Hui Dong: School of Metallurgy, Northeastern University, Shenyang 110819, China

Energies, 2022, vol. 15, issue 11, 1-11

Abstract: In order to clearly understand the air flow resistance characteristics in vertical tanks for sinter waste heat recovery in the steel industry, experimental research on the air flow pressure drop (FPD) performance in a sinter bed layer (BL) was conducted. Based on a self-made experimental device, the measurement values of air FPD for different experimental conditions were determined firstly, and then the concept of Euler number (Eu) in heat exchangers was introduced into the study of air FPD in BL; the change rules of Eu under different particle diameters were analyzed. Finally, the air FPD correlation in sinter BL was obtained and described in the form of Eu , and the error analysis of obtained air FPD correlation was performed. The results show that, the air FPD increases as a second power relationship with the increase in air superficial velocity when the particle diameter is constant. The decrease amplitude of Eu gradually dwindles when increasing the Reynolds number ( Re ), and the decrease in the Eu shows a reciprocal relationship with the Re . As the bed geometry factor increases, the FPD coefficient, A , decreases as an exponential relationship, while the FPD coefficient, B , increases as a first power relationship. The obtained air FPD correlation in the form of Eu in the experiment is well compatible with the measurement values, and the mean deviation of obtained correlation is 4.67%, showing good originality.

Keywords: sinter; packed bed; pressure drop; Euler number; Reynolds number (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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