20.04.2020 Views

VGB POWERTECH 11 (2019)

VGB PowerTech - International Journal for Generation and Storage of Electricity and Heat. Issue 11 (2019). Technical Journal of the VGB PowerTech Association. Energy is us! Power plant operation: legal & technology. Pumped hydro storage. Latent heat storages.

VGB PowerTech - International Journal for Generation and Storage of Electricity and Heat. Issue 11 (2019).
Technical Journal of the VGB PowerTech Association. Energy is us!
Power plant operation: legal & technology. Pumped hydro storage. Latent heat storages.

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>VGB</strong> PowerTech <strong>11</strong> l <strong>2019</strong><br />

Sub-cooled boiling of natural circulation in narrow rectangular channels<br />

Calculation results kW/m 2 K<br />

3.5<br />

3.0<br />

2.5<br />

2.0<br />

1.5<br />

1.0<br />

0.5<br />

0.0<br />

[5] Chen C, Chang W, Li K, et al. Subcooled<br />

flow boiling heat transfer of R-407C and associated<br />

bubble characteristics in a narrow<br />

annular duct [J]. International Journal of<br />

Heat & Mass Transfer, 2009, 52(13-14):<br />

3147-3158.<br />

[6] Wang Jiaqiang, Jia Dounan, Guo Yun,<br />

et al. Experiment study of the onset of nucleate<br />

boiling in narrow annular channel [J].<br />

Nuclear Power Engineering, 2004, 25(4):<br />

319-323.<br />

[7] Pan Liangming, Xin Mingdao, He Chuan,<br />

et al. Subcooled boiling heat transfer in the<br />

vertical narrow recyangular channel [J].<br />

Journal of Engineering Thermophysics.,<br />

2002, 25 (2): 145-147.<br />

[8] Liu Tiancai, Jin Huajin, Yuan Luzheng.<br />

Flow blockage accident analysis for China<br />

advanced research reactor [J]. Nuclear<br />

Power Engineering, 2006,27(S2): 32-35.<br />

[9] Pan Liangming, Xin Mingdao, He Chuan,<br />

et al. Subcooled boiling heat transfer performance<br />

in narrow vertical rectangular channel<br />

[J]. Journal of Thermal Science and<br />

Technology, 2002,1(2): 185-188.<br />

Experiment results kW/m 2 K<br />

-15 %<br />

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5<br />

Fig. 10. Comparison between calculation and experiment results.<br />

[10] Pan L M, Jen T C, He C, et al. Heat Transfer<br />

and Bubble Movement of Two-Side and One-<br />

Side Heating Subcooled Flow Boiling in Vertical<br />

Narrow Channels [J]. Journal of Heat<br />

Transfer, 2006, 128(8): 838-842.<br />

[<strong>11</strong>] Al-Yahia O S, Yong J L, Jo D. Effect of transverse<br />

power distribution on the ONB location<br />

in the subcooled boiling flow [J].<br />

Annals of Nuclear Energy, 2017, 100: 98-<br />

106.<br />

[12] Xu Jianjun, Chen Bingde, Wang Xiaojun,<br />

et al. Phenomenon and analysis of motive<br />

bubbles near the narrow side in a rectangular<br />

narrow channel [J].Chemical engineer,<br />

2007, 35(8): 22-24.<br />

[13] Jiang S Y, Yao M S, et al. Experimental simulation<br />

study on start-up of the 5MW nuclear<br />

heating reactor [J]. Nuclear Engineering<br />

and Design. 1995 , 158(2): <strong>11</strong>1-123.<br />

[14] Zhou Tao. Passive concept and technology<br />

[M]. Tsinghua University Press, 2016.<br />

[15] Reyes J N, Lorenzini P. NuScale power: A<br />

modular, scalable approach to commercial<br />

nuclear power [J]. Nuclear News, 2010,<br />

53(7): 97-104.<br />

[16] Motlagh S Y, Soltanipour H. Natural<br />

convection of Al2O3-water nanofluid in<br />

an inclined cavity using Buongiorno’s<br />

two-phase model [J]. International Journal<br />

of Thermal Sciences, 2017, <strong>11</strong>1: 310-<br />

320.<br />

[17] Zhang L, Hua M, Zhang X, et al. Visualized<br />

investigation of gas-liquid stratified flow<br />

boiling of water in a natural circulation<br />

thermosyphon loop with horizontal arranged<br />

evaporator [J]. International Journal<br />

of Heat & Mass Transfer, 2016, 102:<br />

980-990.<br />

[18] Zhou Tao, Qi Shi, Song Mingqiang, et al.<br />

Experimental study of natural circulation<br />

flow instability in rectangular channels [J].<br />

Kerntechnik, 2017,82: 1-6.<br />

[19] Zhou Tao, Qi Shi, Song Mingqiang, et al.<br />

Experimental study on flow excursion of<br />

two phase natural circulation under<br />

low pressure in narrow rectangular channel<br />

[J]. Nuclear Power Engineering, 2016(4):<br />

1-5.<br />

[20] Zhou T, Duan J, Hong D, et al. Characteristics<br />

of a single bubble in subcooled boiling<br />

region of a narrow rectangular<br />

channel under natural circulation [J]. Annals<br />

of Nuclear Energy, 2013, 57(5):<br />

22-31.<br />

[21] Sheng Cheng. Research on developing<br />

mechanisms in narrow rectangular channel<br />

under natural circulation flow condition<br />

[D]. North China Electric Power University,<br />

2013.<br />

[22] Ren Fuhu. Visualized Experimental investigation<br />

of subcooled flow boiling heat transfer<br />

in horizontal narrow annular channels<br />

[D]. Inner Mongolia of Science and Technology,<br />

2008.<br />

[23] Su Guanghui, Qiu Suizheng, Tian Wenxi.<br />

Thermal hydraulic calculation method of<br />

nuclear power system [M]. Tsinghua University<br />

Press, 2013.<br />

[24] Cao Xiaxin. The study on natural convective<br />

subcooled boiling heat transfer in vertical<br />

narrow annulars [D], Harbin Engineering<br />

University, 2003.<br />

[25] Hong Dexun. Research on heat transfer<br />

characteristics of natural circulation in different<br />

gap rectangular narrow channel [D],<br />

North China Electric Power University,<br />

2013.<br />

[26] Yang Shiming, Tao Wenquan. Heat transfer<br />

[M]. Higher Education Press, 2006. l<br />

<strong>VGB</strong>-Standard<br />

Preservation of Steam andGas Turbo-Generator Sets<br />

Edition 2017 – <strong>VGB</strong>-S-036-00-2017-04-EN<br />

DIN A4, 42 Pa ges, Pri ce for <strong>VGB</strong> mem bers* € 190.–, for non mem bers € 280.–, + VAT, ship ping and hand ling<br />

DIN A4, 42 Seiten, Preis für <strong>VGB</strong>-Mit glie der* € 190,–, für Nicht mit glie der € 280,–, + Ver sand kos ten und MwSt.<br />

The present <strong>VGB</strong>-Standard covers all aspects of preservation. This standard provides operators, manufacturers<br />

and planners with a basic framework on how and to what extent the steam turbines, gas turbines and<br />

generators are to be treated.<br />

The editorial team has decided to take the steam turbine and the generator from the <strong>VGB</strong>-R <strong>11</strong>6 “Preservation<br />

of Power Plants” (republished as <strong>VGB</strong>-S-<strong>11</strong>6-00-2016-04-EN “Preservation of Power Plants”),<br />

to add a section on the gas turbine and to publish both together in this revised <strong>VGB</strong> standard “<strong>VGB</strong>-<br />

S-036-00-2017-04”.<br />

This <strong>VGB</strong>-Standard can be used analogously to protect other plant components in the power plant against<br />

corrosion. It is prepared to the best of our professional knowledge, but does not claim to be complete.<br />

By its very nature, this <strong>VGB</strong>-Standard is a recommendation and therefore cannot replace the expertise of the<br />

users.<br />

In principle, however, in addition to the recommendations and measures for protecting the assets by preservation<br />

as described below, the manufacturer’s instructions and the specifications from the operating manuals<br />

must also be observed.<br />

<strong>VGB</strong>-Standard<br />

Preservation of Steam and<br />

Gas Turbo-Generator Sets<br />

2 nd Edition<br />

<strong>VGB</strong>-S-036-00-2017-04-EN<br />

69

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!