Hydrodynamics of Gas–Liquid Two-Phase Flow …
73
(2) With the increase of A/T, the pressure drop decreases and the trajectory height
increases. The pressure drops of hollow tapered and foaming types are higher
than that of the annular and column types.
(3) The operating area of the foaming zone gradually decreases with the increase of
the A/T. The suitable A/T is 0.5 and the ratio of liquid flow rate to the gas flow
rate (L/G) ranges from 2.62 × 10
–3 to 6.05 × 10
–3 , the gas flow is controlled
between 180 to 350 m
3 /h, which generates the steady foaming flow.
(4) When the liquid flow rate is constant, the pressure drop gradually increases
with the increase of gas flow rate, and the trajectory height decreases with the
increase of gas flow rate. When the gas flow rate is constant, the pressure drop
and trajectory height gradually increase with the increase of liquid flow rate.
Variables
A
the axial liquid flow rate
G
the gas flow rate
L
the liquid flow rate
T
the tangential liquid flow rate
A/T the axial and tangential liquid flow ratio
L/G the ratio of liquid flow rate to the gas flow rate.
Acknowledgements This work was supported by the National Key Research and Development
Project, China (2017YFC0210403).
References
1. Tucker W (2000) An overview of PM2.5 sources and control strategies. Fuel Process Technol
2(65):379–392
2. Zhang L, Ninomiya Y, Yamashita T (2006) Formation of submicron particulate matter (PM10)
during coal combustion and influence of reaction temperature. Fuel 85(10):1446–1457
3. Dubrovsky VV, Podvysotsky AM, Shraiber AA (1992) Particle interaction in three-phase
polydisperse flows. Int J Multiph Flow 18(3):337–352
4. Xie Y, Jiang X (2003) Dust removal technology with negative pressure and its application. J
China Univ Min Technol 32(5):567–570
5. Cousin J, Nuglisch HJ (2001) Modeling of internal flow in high pressure swirl injectors. Paper
presented at the SAE 2001 Word Congress, Detroit, Michigan, 5–8 March 2001
6. Chakraborty SN (2009) Combating coal mine fire-application of high pressure water jet
technology adopted by Goma Engineering Pvt Ltd. J Mines Met Fuels 57:398
7. Song W, Kan J, Wang M, Jiang ZA, Tan C (2015) Study on application of gas-water spraying
dust suppression system in coal mining machines. Ind Saf Environ Prot 41:60–62
8. Jiang H, Du C, Dong J (2017) Investigation of rock cutting dust formation and suppression
using water jets during mining. Powder Technol 307:99–108
9. Faschingleitner J, Höflinger W (2011) Evaluation of primary and secondary fugitive dust
suppression methods using enclosed water spraying systems at bulk solids handling. Adv
Powder Technol 22:236–244
73
(2) With the increase of A/T, the pressure drop decreases and the trajectory height
increases. The pressure drops of hollow tapered and foaming types are higher
than that of the annular and column types.
(3) The operating area of the foaming zone gradually decreases with the increase of
the A/T. The suitable A/T is 0.5 and the ratio of liquid flow rate to the gas flow
rate (L/G) ranges from 2.62 × 10
–3 to 6.05 × 10
–3 , the gas flow is controlled
between 180 to 350 m
3 /h, which generates the steady foaming flow.
(4) When the liquid flow rate is constant, the pressure drop gradually increases
with the increase of gas flow rate, and the trajectory height decreases with the
increase of gas flow rate. When the gas flow rate is constant, the pressure drop
and trajectory height gradually increase with the increase of liquid flow rate.
Variables
A
the axial liquid flow rate
G
the gas flow rate
L
the liquid flow rate
T
the tangential liquid flow rate
A/T the axial and tangential liquid flow ratio
L/G the ratio of liquid flow rate to the gas flow rate.
Acknowledgements This work was supported by the National Key Research and Development
Project, China (2017YFC0210403).
References
1. Tucker W (2000) An overview of PM2.5 sources and control strategies. Fuel Process Technol
2(65):379–392
2. Zhang L, Ninomiya Y, Yamashita T (2006) Formation of submicron particulate matter (PM10)
during coal combustion and influence of reaction temperature. Fuel 85(10):1446–1457
3. Dubrovsky VV, Podvysotsky AM, Shraiber AA (1992) Particle interaction in three-phase
polydisperse flows. Int J Multiph Flow 18(3):337–352
4. Xie Y, Jiang X (2003) Dust removal technology with negative pressure and its application. J
China Univ Min Technol 32(5):567–570
5. Cousin J, Nuglisch HJ (2001) Modeling of internal flow in high pressure swirl injectors. Paper
presented at the SAE 2001 Word Congress, Detroit, Michigan, 5–8 March 2001
6. Chakraborty SN (2009) Combating coal mine fire-application of high pressure water jet
technology adopted by Goma Engineering Pvt Ltd. J Mines Met Fuels 57:398
7. Song W, Kan J, Wang M, Jiang ZA, Tan C (2015) Study on application of gas-water spraying
dust suppression system in coal mining machines. Ind Saf Environ Prot 41:60–62
8. Jiang H, Du C, Dong J (2017) Investigation of rock cutting dust formation and suppression
using water jets during mining. Powder Technol 307:99–108
9. Faschingleitner J, Höflinger W (2011) Evaluation of primary and secondary fugitive dust
suppression methods using enclosed water spraying systems at bulk solids handling. Adv
Powder Technol 22:236–244