Editorial PassiveSafetySystemsinAdvancedPWRs2 Science and Technology of Nuclear Installations [5] F. Pierro, D. Araneo, G. Galassi, and F. D’Auria, “Application of REPAS methodology

Hindawi Publishing CorporationScience and Technology of Nuclear InstallationsVolume 2009, Article ID 643950, 2 pagesdoi:10.1155/2009/643950

Editorial

Passive Safety Systems in Advanced PWRs

Xu Cheng,1 Yanhua Yang,1 Walter Ambrosini,2 and Dino A. Araneo3

1 Shanghai Jiao Tong University, Shanghai, China2 Department of Mechanics, Nuclear and Production Engineering (DIMNP), University of Pisa, Italy3 San Piero a Grado Research Group (GRNSPG), Department of Mechanics, Nuclear and Production Engineering (DIMNP),University of Pisa, Pisa, Italy

Correspondence should be addressed to Xu Cheng, [email protected]

Received 31 December 2009; Accepted 31 December 2009

Copyright © 2009 Xu Cheng et al. This is an open access article distributed under the Creative Commons Attribution License,which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Passive safety systems have been widely applied to advancedwater-cooled reactors (WCRs), to enhance the safety ofnuclear power plants. For the near term and medium term,the Chinese government decided for advanced pressurizedwater reactors with an extensive usage of passive safetysystems. The International Workshop on Passive SafetySystems of Advanced PWR (IPASS’08) was held in Shanghaion April 28–30, 2008, coorganized by the Shanghai Jiao TongUniversity and the Pisa University. The main purposes ofthe Workshop IPASS’08 are (a) to provide a platform to theinternational nuclear community for exchanging researchresults and design experience on passive safety systemsapplied to advanced WCR and (b) to enhance the contact andcollaboration between the Chinese research institutions andinternational partners.

More than 100 scientists and nuclear engineers fromeight countries, that is, Canada, China, France, Germany,Italy, Korea, Pakistan, and USA, were participating in thisworkshop. More than 60 technical papers were presentedcovering the following topics:

(a) safety injection and decay heat removal systems,

(b) passive containment cooling systems and hydrogensafety research,

(c) passive systems for severe accident mitigation,

(d) assessment and application of numerical tools,

(e) single effect and integral verification experiments,

Eight papers were selected for this special issue. The firstpaper of Cheng et al. [1] gives a summary about the Chineseresearch activities on passive safety systems of advancedPWR. Experimental studies and validation of numerical

codes are presented in the following two papers [2, 3].The paper of Gou et al. [4] deals with numerical analysisof the performance of passive safety systems; whereas themethodology for the reliability assessment of passive safetysystems is investigated in the paper of Pierro et al. [5]. Thelast three papers are devoted to hydrogen safety issue, whichis a main topic of the workshop [6–8].

The editors of this special issue express thanks to allauthors for their contribution.

Xu ChengYanhua Yang

Walter AmbrosiniDino A. Araneo

References

[1] X. Cheng, Y. H. Yang, Y. Ouyang, and H. X. Miao, “Role ofpassive safety systems in Chinese nuclear power development,”Science and Technology of Nuclear Installations, vol. 2009, ArticleID 573026, 7 pages, 2009.

[2] M. Carelli, L. Conway, M. Dzodzo, et al., “The SPES3 experi-mental facility design for the IRIS reactor simulation,” Scienceand Technology of Nuclear Installations, vol. 2009, Article ID579430, 12 pages, 2009.

[3] W. Reactors, W. Ambrosini, M. Bucci, N. Forgione, A. Man-fredini, and F. Oriolo, “Experiments and modelling techniquesfor heat and mass transfer in light,” Science and Technology ofNuclear Installations, vol. 2009, Article ID 738480, 11 pages,2009.

[4] J. Gou, S. Qiu, G. Su, and D. Jia, “Thermal hydraulic analysisof a passive residual heat removal system for an integralpressurized water reactor,” Science and Technology of NuclearInstallations, vol. 2009, Article ID 473795, 12 pages, 2009.

2 Science and Technology of Nuclear Installations

[5] F. Pierro, D. Araneo, G. Galassi, and F. D’Auria, “Applicationof REPAS methodology to assess the reliability of passive safetysystems,” Science and Technology of Nuclear Installations, vol.2009, Article ID 768947, 18 pages, 2009.

[6] J. Xiong, Y. Yang, and X. Cheng, “CFD application to hydrogenrisk analysis and PAR qualification,” Science and Technology ofNuclear Installations, vol. 2009, Article ID 213981, 10 pages,2009.

[7] P. Royl, J. R. Travis, W. Breitung, J. Kim, and S. B. Kim,“GASFLOW validation with panda tests from the OECD SETHbenchmark covering steam/air and steam/helium/air mixtures,”Science and Technology of Nuclear Installations, vol. 2009, ArticleID 759878, 13 pages, 2009.

[8] J. Xiao, J. R. Travis, and W. Breitung, “Non-Boussinesq integralmodel for horizontal turbulent buoyant round jets,” Science andTechnology of Nuclear Installations, vol. 2009, Article ID 862934,7 pages, 2009.

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Editorial PassiveSafetySystemsinAdvancedPWRs2 Science and Technology of Nuclear Installations [5] F. Pierro, D. Araneo, G. Galassi, and F. D’Auria, “Application of REPAS methodology