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Author : G. W. Keilholtz
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.3/5 (91 download)
Download or read book Behavior of Iodine in Reactor Containment Systems written by G. W. Keilholtz and published by . This book was released on 1965 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.3/5 (91 download)
Download or read book Behavior of Iodine in the Nuclear Safety Pilot Plant Model Containment Vessel written by and published by . This book was released on 1964 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Atomic Energy of Canada Limited
Publisher : Pinawa, Man. : Whiteshell Nuclear Research Establishment
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (159 download)
Download or read book Assessment of Iodine Behaviour in Reactor Containment Buildings from a Chemical Perspective written by Atomic Energy of Canada Limited and published by Pinawa, Man. : Whiteshell Nuclear Research Establishment. This book was released on 1981 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fariborz Taghipour
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (133 download)
Download or read book The Impact of Organic Compounds on Iodine Behaviour Under Conditions Relating to Nuclear Reactor Accidents written by Fariborz Taghipour and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact of organic compounds on iodine behaviour was investigated under a range of post-accident chemical conditions expected in a reactor containment structure. A bench scale apparatus installed in the irradiation chamber of a Gammacell was used to provide continuous measurement of iodine volatilization rates from 10-6 to 10 -4 CsI solutions with pH values from 5 to 9. The rate of production of volatile iodine was evaluated in the presence of 10-3 M concentrations of various alkyl halides, carbonyls, and aromatics; the three classes of organic compounds most likely present in containment. Iodo-organics and molecular iodine in the gas and liquid phases of the irradiated samples were analyzed using gas chromatography, mass spectrometry, and UV spectrophotometry. A model was developed that simulates the radiation chemistry of iodine in the presence of organic compounds and evaluated against the experimental results. The results indicated that organic compounds can be classified into groups, based on their distinct effects on iodine behaviour. Iodine volatilization increased significantly, up to two orders of magnitude, in the presence of carbonyls and alkyl chlorides, while it decreased in the presence of aromatics. Gas and liquid phase analysis indicated that chloro-iodo organics and alkyl iodides are the major types of volatile iodo-organics formed in the presence of alkyl chlorides and carbonyls, respectively, while no volatile iodo-organics are formed in the presence of aromatics. Molecular iodine measurements in the systems showed that I2 concentration increases in the presence of alkyl chlorides and decreases in the presence of carbonyls and aromatics. The kinetic-based model, containing a mechanistic description of iodine chemistry and generic semi-mechanistic reactions for various classes of organics, provided a reasonable prediction of the experimental results. The majority of the model and experimental results were in agreement within an order of magnitude. The results of this research will assist in predicting and reducing the radiological consequences of reactor accidents. In particular, the results indicate the advantage of maintaining basic pH and avoiding alkyl halide or ketone based solutions in post-accident reactor containment, in order to reduce radioactive iodine volatility, and hence, improve reactor safety.
Author : Anandhi Narayanan
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Global Model for Iodine Behaviour in Reactor Containment written by Anandhi Narayanan and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this thesis was to develop a mechanistic model to simulate iodine behaviour within the containment structure of a nuclear generating station. The model included both aqueous and gas phase radiolysis and interfacial mass transfer. Validation of the model was conducted for each phase separately and the combined model was applied to a few reactor accident scenarios. The aqueous model successfully reflected various experimental data over a wide range in pH, iodide concentration, temperature, and dose rate. The incorporation of gas phase chemistry served to determine the dominant chemical forms of gaseous iodine. In addition, it was observed that hydrogen, likely to be present in the containment atmosphere, would hinder the elimination of molecular iodine. Finally, the interaction of iodine with nitrogen oxides was significant when compared to reactions with ozone. Hence, the deposition of ozone onto surfaces did not impact iodine behaviour. The development of this model will serve as a useful tool for reactor safety assessments.
Download or read book Global Model for Iodine Behaviour in Reactor Containment written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Iodine Behavior in Containment Under LWR Accident Conditions written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The description of containment iodine behavior in reactor accident sequences requires an understanding of iodine volatility effects, deposition and revaporization/resuspension (from surfaces and aerosols), chemical changes between species, and mass transport. The experimental work in this program has largely centered on the interactions of iodine in or with water pools. The formation of volatile iodine, as I2 or organic iodides, is primarily dependent on radiation and solution pH. Lower pH results in increased formation of volatile iodine species; thus, for example, a pH of 3.05 resulted in a conversion of I− to I2 that was more than two orders of magnitude greater than tests run at pH 6.1 or 6.8. The formation or organic iodides involving water pools has been linked to the presence of iodine as I2, the solution/gas contact, and to the type of organic material.
Author : A. K. Postma
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Iodine Behavior in a PWR Cooling System Following a Postulated Steam Generator Tube Rupture Accident written by A. K. Postma and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. R. Weaver
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Behaviour of iodine in the heat transport system and containment and application to loss-of-coolant accident analysis for 600 mw(e) reactors written by K. R. Weaver and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. E. Miller
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Adequacy of Scale-up in Experiments on Fission Product Behavior in Reactor Accidents written by C. E. Miller and published by . This book was released on 1966 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. L. Nebeker
Publisher :
ISBN 13 :
Total Pages : 173 pages
Book Rating : 4.:/5 (957 download)
Download or read book Containment Behavior of Xenon and Iodine Under Simulated Loss-of-coolant Accident Conditions in the Contamination-decontamination Experiment written by R. L. Nebeker and published by . This book was released on 1971 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eleven runs were conducted at low radioactivity levels (initial iodine-131 and xenon-133 concentrations ranging from 1 to 260 uCi/1) in the Contamination-sampling fission product aerosols. In these runs, a single radionucline (iodine-1313 or xenon-133) was injected into a steam-air atmosphere in the 2.4-m3 operation of emergency core cooling, pressure reduction, or filter safety systems, was sampled during pressure and temperature transients representative of those expected for a reactor loss of-of-coolant accident.
Author : P.G. Shaw
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Transport Behavior of Iodine in Radioactivity Monitoring Systems written by P.G. Shaw and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of tests conducted on a simulated sample line for a radioactive gaseous effluent monitoring system typical of those a nuclear power plants. The purpose of the tests was to evaluate the ability of a sampling line to transmit a representative sample of radioactive elemental iodine during the transient (short-term high concentration) conditions.
Author : H. E. Sims
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Iodine behavior in containment : the reaction of iodine with surfaces : draft written by H. E. Sims and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles F. Weber
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (245 download)
Download or read book Iodine Chemical Forms in LWR Severe Accidents written by Charles F. Weber and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : F. J. Brutschy
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (262 download)
Download or read book Behavior of Iodine in Reactor Water During Plant Shutdown and Startup written by F. J. Brutschy and published by . This book was released on 1972 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. J. Wisbey
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (2 download)
Download or read book Iodine Behavior in Containment Under LWR Accident Conditions written by S. J. Wisbey and published by . This book was released on 1986 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1084 pages
Book Rating : 4.F/5 ( download)
Download or read book Nuclear Safety written by and published by . This book was released on 1964 with total page 1084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
