Experimental Study on Condensation of Steam Jet Injection in Submerged Condition

doi:10.16183/j.cnki.jsjtu.2020.302

Abstract

Abstract:

An experimental study is conducted to find the characteristics of steam plume and pressure oscillation on direct contact condensation by a side-hole sparger. Synchronal measuring of transient pressure of the steam plume is gained from the high-speed camera and high-pressure sensor respectively. The influence of steam mass flux and water temperature on direct contact condensation characteristic are presented and its regime map is plotted. Then, the dynamic connections of transient pressure and steam plume in different condensation regimes are analyzed. It is found that high frequency pressure oscillation and the collapse of detached bubbles occur at the same time. Together with the condensing and disappearing process of the collapse of detached bubbles, the intensity of pressure oscillation decays exponentially in a vibration way. The changing trends of steam plume length in condensation oscillation regime and stable condensation regime are also obtained, which shows that the steam plume increases with the steam mass flux and the temperature in the condensation oscillation regime. When entering the stable condensation regime, the steam plume suddenly decreases and then increases with the temperature and the steam mass flux. The research results are useful for the engineering application of sparger in steam emission devices.

Key words: steam jet injection, direct contact condensation, steam plume, pressure oscillation, steam plume length

CLC Number:

TL334

ZHANG Wei, JIANG Chaofei, YE Ya’nan, WANG Xiaoyan, GONG Zili, HU Chen, XIAO Yao, GU Hanyang. Experimental Study on Condensation of Steam Jet Injection in Submerged Condition[J]. Journal of Shanghai Jiao Tong University, 2022, 56(1): 1-13.

Figures/Tables 19

Fig.1

Tab.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Fig.13

Fig.14

Fig.15

Fig.16

Fig.17

Fig.18

References 27

[1]	PATEL G, TANSKANEN V, HUJALA E, et al. Direct contact condensation modeling in pressure suppression pool system[J]. Nuclear Engineering and Design, 2017, 321:328-342. doi: 10.1016/j.nucengdes.2016.08.026 URL
[2]	黄雄, 吕雪峰, 李依霖, 等. AP1000核电厂自动卸压系统功能分析[J]. 热力发电, 2016, 45(5):84-87.
	HUANG Xiong, LV Xuefeng, LI Yilin, et al. Function analysis for automatic depressurization system in AP1000 nuclear power plant[J]. Thermal Power Generation, 2016, 45(5):84-87.
[3]	DE WITH P A, CALAY R K, DE WITH G. Three-dimensional condensation regime diagram for direct contact condensation of steam injected into water[J]. International Journal of Heat and Mass Transfer, 2007, 50(9/10):1762-1770. doi: 10.1016/j.ijheatmasstransfer.2006.10.017 URL
[4]	CHO S, CHUN S Y, BAEK W P, et al. Effect of multiple holes on the performance of sparger during direct contact condensation of steam[J]. Experimental Thermal and Fluid Science, 2004, 28(6):629-638. doi: 10.1016/j.expthermflusci.2003.10.002 URL
[5]	ZHAO Q B, HIBIKI T. Review: Condensation regime maps of steam submerged jet condensation[J]. Progress in Nuclear Energy, 2018, 107:31-47. doi: 10.1016/j.pnucene.2017.12.014 URL
[6]	XU Q, GUO L J. Direct contact condensation of steam jet in crossflow of water in a vertical pipe. Experimental investigation on condensation regime diagram and jet penetration length[J]. International Journal of Heat and Mass Transfer, 2016, 94:528-538. doi: 10.1016/j.ijheatmasstransfer.2015.02.036 URL
[7]	XU Q, YE S Y, CHEN Y S, et al. Condensation regime diagram for supersonic and subsonic steam jet condensation in water flow in a vertical pipe[J]. Applied Thermal Engineering, 2018, 130:62-73. doi: 10.1016/j.applthermaleng.2017.10.135 URL
[8]	LI W C, MENG Z M, SUN Z N, et al. Investigations on the penetration length of steam-air mixture jets injected horizontally and vertically in quiescent water[J]. International Journal of Heat and Mass Transfer, 2018, 122:89-98. doi: 10.1016/j.ijheatmasstransfer.2018.01.075 URL
[9]	YANG X P, LIU J P, FU P F, et al. Experimental and theoretical study of pressure oscillation of unstable steam-air jet condensation in water in a rectangular channel[J]. International Journal of Multiphase Flow, 2019, 119:14-27. doi: 10.1016/j.ijmultiphaseflow.2019.07.009 URL
[10]	LI S Q, LU T, WANG L, et al. Experiment study on steam-water direct contact condensation in water flow in a Tee junction[J]. Applied Thermal Engineering, 2017, 120:99-106. doi: 10.1016/j.applthermaleng.2017.03.127 URL
[11]	CHONG D T, ZHAO Q B, YUAN F, et al. Research on the steam jet length with different nozzle structures[J]. Experimental Thermal and Fluid Science, 2015, 64:134-141. doi: 10.1016/j.expthermflusci.2015.02.015 URL
[12]	WU X Z, YAN J J, SHAO S F, et al. Experimental study on the condensation of supersonic steam jet submerged in quiescent subcooled water: Steam plume shape and heat transfer[J]. International Journal of Multiphase Flow, 2007, 33(12):1296-1307. doi: 10.1016/j.ijmultiphaseflow.2007.06.004 URL
[13]	KIM Y S, YOUN Y J. Experimental study of turbulent jet induced by steam jet condensation through a hole in a water tank[J]. International Communications in Heat and Mass Transfer, 2008, 35(1):21-29. doi: 10.1016/j.icheatmasstransfer.2007.05.014 URL
[14]	PARK C K, SONG C H, JUN H G. Experimental investigation of the steam condensation phenomena due to a multi-hole sparger[J]. Journal of Nuclear Science and Technology, 2007, 44(4):548-557. doi: 10.1080/18811248.2007.9711844 URL
[15]	AYA I, NARIAI H. Boundaries between regimes of pressure oscillation induced by steam condensation in pressure suppression containment[J]. Nuclear Engineering and Design, 1987, 99:31-40. doi: 10.1016/0029-5493(87)90105-1 URL
[16]	CHO S, SONG C H, PARK C K,, et al. Experimental study on dynamic pressure pulse in direct contact condensation of steam discharging into subcooled water [EB/OL]. (1998-01-20) [2020-08-01]. https://www.researchgate.net/publication/285905201_Experimental_study_on_dynamic_pressure_pulse_in_direct_contact_condensation_of_steam _discharging_into_subcooled_water.
[17]	GREGU G, TAKAHASHI M, PELLEGRINI M, et al. Experimental study on steam chugging phenomenon in a vertical sparger[J]. International Journal of Multiphase Flow, 2017, 88:87-98. doi: 10.1016/j.ijmultiphaseflow.2016.09.020 URL
[18]	WANG L T, YUE X Y, CHONG D T, et al. Experimental investigation on the phenomenon of steam condensation induced water hammer in a horizontal pipe[J]. Experimental Thermal and Fluid Science, 2018, 91:451-458. doi: 10.1016/j.expthermflusci.2017.10.036 URL
[19]	KERNEY P J, FAETH G M, OLSON D R. Penetration characteristics of a submerged steam jet[J]. AIChE Journal, 1972, 18(3):548-553. doi: 10.1002/(ISSN)1547-5905 URL
[20]	XU Q, GUO L J, CHANG L. Mechanisms of pressure oscillation in steam jet condensation in water flow in a vertical pipe[J]. International Journal of Heat and Mass Transfer, 2017, 110:643-656. doi: 10.1016/j.ijheatmasstransfer.2017.03.017 URL
[21]	XU Q, GUO L J, ZOU S F, et al. Experimental study on direct contact condensation of stable steam jet in water flow in a vertical pipe[J]. International Journal of Heat and Mass Transfer, 2013, 66:808-817. doi: 10.1016/j.ijheatmasstransfer.2013.07.083 URL
[22]	ZHAO Q B, CHEN W X, YUAN F, et al. Pressure oscillation and steam cavity during the condensation of a submerged steam jet[J]. Annals of Nuclear Energy, 2015, 85:512-522. doi: 10.1016/j.anucene.2015.05.032 URL
[23]	CHONG D T, ZHAO Q B, YUAN F, et al. Experimental and theoretical study on the second dominant frequency in submerged steam jet condensation[J]. Experimental Thermal and Fluid Science, 2015, 68:744-758. doi: 10.1016/j.expthermflusci.2015.07.011 URL
[24]	QIU B B, YAN J J, LIU J P, et al. Experimental investigation on the second dominant frequency of pressure oscillation for sonic steam jet in subcooled water[J]. Experimental Thermal and Fluid Science, 2014, 58:131-138. doi: 10.1016/j.expthermflusci.2014.07.002 URL
[25]	CHUN M H, KIM Y S, PARK J W. An investigation of direct condensation of steam jet in subcooled water[J]. International Communications in Heat and Mass Transfer, 1996, 23(7):947-958. doi: 10.1016/0735-1933(96)00077-2 URL
[26]	HONG S J, PARK G C, CHO S, et al. Condensation dynamics of submerged steam jet in subcooled water[J]. International Journal of Multiphase Flow, 2012, 39:66-77. doi: 10.1016/j.ijmultiphaseflow.2011.10.007 URL
[27]	张社荣, 孔源, 王高辉. 水下和空中爆炸冲击波传播特性对比分析[J]. 振动与冲击, 2014, 33(13):148-153.
	ZHANG Sherong, KONG Yuan, WANG Gaohui. Comparative analysis on propagation characteristics of shock wave induced by underwater and air explosions[J]. Journal of Vibration and Shock, 2014, 33(13):148-153.

参数	取值范围
蒸汽质量流率/(kg·m^-2·s^-1)	50~500
入口蒸汽压力/MPa	0.7~1.0
过冷水温度/℃	30~85
喷孔浸没深度/m	1.4
喷孔孔径/mm	16
流率计量程(精度)/(m³·h^-1)	0~72(0.5% FS)
压力表量程(精度)/MPa	0~6(0.5% FS)
动态压力表量程(精度)/kPa	0~200(0.1% FS)