WorldWideScience

Sample records for nspp

  1. Analysis of NSPP experiment with ART code for analyzing transport behavior of Aerosol and radionuclides

    International Nuclear Information System (INIS)

    Ishigami, Tsutomu; Kobayashi, Kensuke; Kajimoto, Mitsuhiro.

    1989-01-01

    The ART code calculates transport behavior of aerosols and radionuclides during core meltdown accidents in the light water reactors. Since aerosols play an important role in carrying fission products from the core region to the environment, the ART code includes detailed models of aerosol behavior. Aerosols including several radionuclides are classified into many groups according to the aerosol mass. The models of aerosol behavior include agglomeration processes caused by Brownian motion, aerosol settling velocity difference and turbulent flow, and natural deposition processes due to diffusion, thermophoresis, diffusiophoresis, gravitational settling and forced convection. In order to examine validity of the ART models, the NSPP aerosol experiment was analyzed. The ART calculated results showed good agreement with the experimental data. It was ascertained that aerosol growth due to agglomeration, gravitational settling, thermophoresis in an air atmosphere, and diffusiophoresis in an air-steam atmosphere were important physical phenomena in the aerosol behavior. (author)

  2. Comparison of computer code calculations with experimental results obtained in the NSPP series of experiments

    International Nuclear Information System (INIS)

    Tobias, M.L.

    1987-01-01

    Experiments were done on several aerosols in air atmospheres at varying temperatures and humidity conditions of interest in forming a data base for testing aerosol behavior models used as part of the process of evaluating the ''source term'' in light water reactor accidents. This paper deals with the problems of predicting the observed experimental data for suspended aerosol concentration with aerosol calculational codes. Comparisons of measured versus predicted data are provided

  3. Sodium oxide and uranium oxide aerosol experiments: NSPP Tests 106-108 and Tests 204-207, data record report

    Energy Technology Data Exchange (ETDEWEB)

    Adams, R.E.; Kress, T.S.; Tobias, M.L.

    1981-03-01

    This data record report describes three sodium oxide aerosol tests and four uranium oxide aerosol tests conducted in the Nuclear Safety Pilot Plant project at Oak Ridge National Laboratory. The goal of this project is to establish the validity (or level of conservatism) of the aerosol behavioral code, HAARM-3, and follow-on codes under development at the Battelle Columbus Laboratories for the US Nuclear Regulatory Commission. Descriptions of the seven tests with tables and graphs summarizing the results are included. 92 figs.

  4. Test and Demonstration Assets of New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-03-31

    This document was developed by the Arrowhead Center of New Mexico State University as part of the National Security Preparedness Project (NSPP), funded by a DOE/NNSA grant. The NSPP has three primary components: business incubation, workforce development, and technology demonstration and validation. The document contains a survey of test and demonstration assets in New Mexico available for external users such as small businesses with security technologies under development. Demonstration and validation of national security technologies created by incubator sources, as well as other sources, are critical phases of technology development. The NSPP will support the utilization of an integrated demonstration and validation environment.

  5. The National Shipbuilding Research Program. Environmental Studies and Testing (Phase V)

    National Research Council Canada - National Science Library

    2000-01-01

    ...) and by the NSPP Program Manager at NASSCO. This Subtask prepared a white paper on the issues and considerations associated with facilities and environmental matters that must be reflected in the development of the Strategic Investment Plan (SIP...

  6. Student Experiential Opportunities in National Security Careers

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2007-12-31

    This report documents student experiential opportunities in national security careers as part of the National Security Preparedness Project (NSPP), being performed under a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. This report includes a brief description of how experiential opportunities assist students in the selection of a career and a list of opportunities in the private sector and government. The purpose of the NSPP is to promote national security technologies through business incubation, technology demonstration and validation, and workforce development. Workforce development activities will facilitate the hiring of students to work with professionals in both the private and public sectors, as well as assist in preparing a workforce for careers in national security. The goal of workforce development under the NSPP grant is to assess workforce needs in national security and implement strategies to develop the appropriate workforce.

  7. Development of Implicit Compact Methods for Chemically Reacting Flows

    Science.gov (United States)

    2009-02-28

    NSP_P), DKt (NSP_P), & ! stoichiometric coeffs (# mols produced/destroyed) & NUK(NSP_P), & ! mass coeffs: NUK(k)*WK(k) & NUKWK(NSP_P), & & WK... DKt UC UCr wc WCz NUK NUKWK ! (nu_0 sstoich Yfuel Yox Yfuel_F Yox_A Z PHI omega SOURCE q HEAT = SpecificHeat(T) = 0 .do...RHO*T) dot_product(DK,YKr) ! correction vel. for mass conservation dot_product(DK,YKrr)+dot_product(( DKt *Tr),YKr) dot_product(DK,YKz) ! correction

  8. Marketing Plan for Demonstration and Validation Assets

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2008-05-30

    The National Security Preparedness Project (NSPP), is to be sustained by various programs, including technology demonstration and evaluation (DEMVAL). This project assists companies in developing technologies under the National Security Technology Incubator program (NSTI) through demonstration and validation of technologies applicable to national security created by incubators and other sources. The NSPP also will support the creation of an integrated demonstration and validation environment. This report documents the DEMVAL marketing and visibility plan, which will focus on collecting information about, and expanding the visibility of, DEMVAL assets serving businesses with national security technology applications in southern New Mexico.

  9. Behavior of aerosols in a steam-air environment

    International Nuclear Information System (INIS)

    Adams, R.E.; Tobias, M.L.; Longest, A.W.

    1985-01-01

    The behavior of aerosols assumed to be characteristic of those generated during light water reactor (LWR) accident sequences and released into containment is being studied in the Nuclear Safety Pilot Plant (NSPP) which is located at the Oak Ridge National Laboratory (ORNL). The program plan for the NSPP aerosol project provides for the study of the behavior, within containment, of simulated LWR accident aerosols emanating from fuel, reactor core structural materials, and from concrete-molten core materials interactions. The aerodynamic behavior of each of these aerosols was studied individually to establish its characteristics; current experiments involve mixtures of these aerosols to establish their interaction and collective behavior within containment. Tests have been conducted with U 3 O 8 aerosols, Fe 2 O 3 aerosols, and concrete aerosols in an environment of either dry air [relative humidity (RH) less than 20%] or steam-air [relative humidity (RH) approximately 100%] with aerosol mass concentration being the primary experimental variable

  10. External Service Providers to the National Security Technology Incubator: Formalization of Relationships

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-04-30

    This report documents the formalization of relationships with external service providers in the development of the National Security Technology Incubator (NSTI). The technology incubator is being developed as part of the National Security Preparedness Project (NSPP), funded by a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. This report summarizes the process in developing and formalizing relationships with those service providers and includes a sample letter of cooperation executed with each provider.

  11. Influence of steam on the behavior of U3O8 aerosols

    International Nuclear Information System (INIS)

    Adams, R.E.; Tobias, M.L.; Kress, T.S.

    1982-01-01

    A project is being conducted in the Nuclear Safety Pilot Plant (NSPP), located at the Oak Ridge National Laboratory (ORNL), to study the behavior of aerosols assumed to be generated during LWR reactor accident sequences and released into containment. This project, which is part of the ORNL Aerosol Release and Transport (ART) Program, is sponsored by the Nuclear Regulatory Commission and its purpose is to provide experimental qualification for LWR aerosol behavioral codes being developed independently by other NRC-sponsored programs. The program plan for the NSPP aerosol project provides for the study of the behavior of LWR accident aerosols emanating from fuel, reactor core structural materials, and from concrete-molten metal reactions. The behavior of each of these aerosols is being studied individually to establish their characteristics; future experiments will involve mixtures of these aerosols to establish their interaction and collective behavior within containment. The purpose of this paper is to document observations illustrating the influence that steam has on the behavior of U 3 O 8 aerosols within the NSPP vessel

  12. Presentation at Innoventure Annual Competition

    Energy Technology Data Exchange (ETDEWEB)

    None

    2010-03-31

    This report documents the components of the workshop presented at the recent annual competition for the Innoventure program. The goal of the workshop was to focus on the delivery of science, technology, engineering, and math (STEM) concepts in a hands-on experiential learning format to increase interest in national security careers at NNSA, most of which are in the STEM fields. This work is a part of the National Security Preparedness Project (NSPP), being performed under a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant.

  13. Strategies for Overcoming Key Barriers to Development of a National Security Workforce

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-06-30

    This report documents the strategies for overcoming identified key barriers to development of an adequate national security workforce as part of the National Security Preparedness Project (NSPP) being performed under a Department of Energy (DOE) National Nuclear Security Administration (NNSA) grant. Many barriers currently exist that prevent the development of an adequate number of properly trained national security personnel. The identified strategies to address the barriers will focus on both short-term and long-term efforts, as well as strategies to capture legacy knowledge of retiring national security workforce personnel.

  14. National Security Technology Incubator Evaluation Process

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2007-12-31

    This report describes the process by which the National Security Technology Incubator (NSTI) will be evaluated. The technology incubator is being developed as part of the National Security Preparedness Project (NSPP), funded by a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. This report includes a brief description of the components, steps, and measures of the proposed evaluation process. The purpose of the NSPP is to promote national security technologies through business incubation, technology demonstration and validation, and workforce development. The NSTI will focus on serving businesses with national security technology applications by nurturing them through critical stages of early development. An effective evaluation process of the NSTI is an important step as it can provide qualitative and quantitative information on incubator performance over a given period. The vision of the NSTI is to be a successful incubator of technologies and private enterprise that assist the NNSA in meeting new challenges in national safety and security. The mission of the NSTI is to identify, incubate, and accelerate technologies with national security applications at various stages of development by providing hands-on mentoring and business assistance to small businesses and emerging or growing companies. To achieve success for both incubator businesses and the NSTI program, an evaluation process is essential to effectively measure results and implement corrective processes in the incubation design if needed. The evaluation process design will collect and analyze qualitative and quantitative data through performance evaluation system.

  15. Large-scale experiments on aerosol behavior in light water reactor containments

    International Nuclear Information System (INIS)

    Schock, W.; Bunz, H.; Adams, R.E.; Tobias, M.L.; Rahn, F.J.

    1988-01-01

    Recently, three large-scale experimental programs were carried out dealing with the behavior of aerosols during core-melt accidents in light water reactors (LWRs). In the Nuclear Safety Pilot Plant (NSPP) program, the principal behaviors of different insoluble aerosols and of mixed aerosols were measured in dry air atmospheres and in condensing steam-air atmospheres contained in a 38-m/sup 3/ steel vessel. The Demonstration of Nuclear Aerosol Behavior (DEMONA) program used a 640-m/sup 3/ concrete containment model to simulate typical accident sequence conditions, and measured the behavior of different insoluble aerosols and mixed aerosols in condensing and transient atmospheric conditions. Part of the LWR Aerosol Containment Experiments (LACE) program was also devoted to aerosol behavior in containment; and 852-m/sup 3/ steel vessel was used, and the aerosols were composed of mixtures of insoluble and soluble species. The results of these experiments provide a suitable data base for validation of aerosol behavior codes. Fundamental insight into details of aerosol behavior in condensing environments has been gained through the results of the NSPP tests. Code comparisons have been and are being performed in the DEMONA and LACE experiments

  16. Stability of agronomic and yield related traits of Jatropha curcas accessions raised from cuttings

    Science.gov (United States)

    Mat, Nurul Hidayah Che; Yaakob, Zahira; Ratnam, Wickneswari

    2016-11-01

    Monitoring stability of agronomic and yield related traits is important for prediction of crop yields. This study was a latter study for the evaluation of 295 J. curcas individuals representing 21 accessions from eight countries at Biodiesel Research Station of Universiti Kebangsaan Malaysia, Kuala Pilah planted in December 2012. In this study, 183 J. curcas individuals were selected randomly from the population and their growth performance evaluated from December 2013 to December 2014. All the individual plants were raised from cuttings. The yield related data were recorded periodically and performance of each accession was analyzed using Statistical Analysis System (SAS) 9.4. Five traits which were number of fruits per plant (NFPP), number of fruits per inflorescence (NFPI), hundred seed weight (g) (HSW), number of seeds per plant (NSPP) and yield per plant (g) (YPP) showed significant differences among the accessions after two years of planting. Maximum values for each trait were 208 cm for plant height (PH), 31 for number of branches per plant (BPP), 115 for number of inflorescence per plant (NIPP), 582 for NFPP, 7 for NFPI, 307 for number of flowers per inflorescence (NFI), 17 for number of female flowers per inflorescence (NFFPI), 91.6 g for HSW, 1647.1 for NSPP and 927.6 g for YPP. Most of the plants which had performed well in the first year were among the best performers in the second year.

  17. Risk factors of circumferential resection margin involvement in the patients with extraperitoneal rectal cancer.

    Science.gov (United States)

    Oh, Sung Jin; Shin, Jin Yong

    2012-03-01

    Currently, circumferential resection margins (CRM) are used as a clinical endpoint in studies on the prognosis of rectal cancer. Although the concept of a circumferential resection margin in extraperitoneal rectal cancer differs from that in intraperitoneal rectal cancer due to differences in anatomical and biologic behaviors, previous reports have provided information on CRM involvement in all types of rectal cancer including intraperitoneal lesions. Therefore, the aim of this study was to analyze risk factors of CRM involvement in extraperitoneal rectal cancer. From January 2005 to December 2008, 306 patients with extraperitoneal rectal cancer were enrolled in a prospectively collected database. Multivariate logistic regression analysis was used to identify predictors of CRM involvement. The overall rate of CRM involvement was found to be 16.0%. Multivariate analysis showed that male sex, larger tumor size (≥4 cm), stage higher than T3, nodal metastasis, tumor perforation and non-sphincter preserving proctectomy (NSPP) were risk factors for CRM involvement. Male sex, larger tumor size (≥4 cm), advanced T stage, nodal metastasis, tumor perforation, and NSPP are significant risk factors of CRM involvement in extraperitoneal rectal cancer. Given that postoperative chemoradiotherapy is recommended for patients with a positive CRM, further oncologic studies are warranted to ascertain which patients with these risk factors would require adjuvant therapy.

  18. National Security Technology Incubator Business Plan

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2007-12-31

    This document contains a business plan for the National Security Technology Incubator (NSTI), developed as part of the National Security Preparedness Project (NSPP) and performed under a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. This business plan describes key features of the NSTI, including the vision and mission, organizational structure and staffing, services, evaluation criteria, marketing strategies, client processes, a budget, incubator evaluation criteria, and a development schedule. The purpose of the NSPP is to promote national security technologies through business incubation, technology demonstration and validation, and workforce development. The NSTI will focus on serving businesses with national security technology applications by nurturing them through critical stages of early development. The vision of the NSTI is to be a successful incubator of technologies and private enterprise that assist the NNSA in meeting new challenges in national safety, security, and protection of the homeland. The NSTI is operated and managed by the Arrowhead Center, responsible for leading the economic development mission of New Mexico State University (NMSU). The Arrowhead Center will recruit business with applications for national security technologies recruited for the NSTI program. The Arrowhead Center and its strategic partners will provide business incubation services, including hands-on mentoring in general business matters, marketing, proposal writing, management, accounting, and finance. Additionally, networking opportunities and technology development assistance will be provided.

  19. Identification of Strategies to Leverage Public and Private Resources for National Security Workforce Development

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-02-01

    This report documents the identification of strategies to leverage public and private resources for the development of an adequate national security workforce as part of the National Security Preparedness Project (NSPP).There are numerous efforts across the United States to develop a properly skilled and trained national security workforce. Some of these efforts are the result of the leveraging of public and private dollars. As budget dollars decrease and the demand for a properly skilled and trained national security workforce increases, it will become even more important to leverage every education and training dollar. The leveraging of dollars serves many purposes. These include increasing the amount of training that can be delivered and therefore increasing the number of people reached, increasing the number and quality of public/private partnerships, and increasing the number of businesses that are involved in the training of their future workforce.

  20. Implementation of Strategies to Leverage Public and Private Resources for National Security Workforce Development

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-04-01

    This report documents implementation strategies to leverage public and private resources for the development of an adequate national security workforce as part of the National Security Preparedness Project (NSPP), being performed under a U.S. Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. There are numerous efforts across the United States to develop a properly skilled and trained national security workforce. Some of these efforts are the result of the leveraging of public and private dollars. As budget dollars decrease and the demand for a properly skilled and trained national security workforce increases, it will become even more important to leverage every education and training dollar. This report details some of the efforts that have been implemented to leverage public and private resources, as well as implementation strategies to further leverage public and private resources.

  1. Operations Plan for Support Network Development

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-06-30

    This report describes the operational processes and strategies that are building a support network for the National Security Technology Incubator (NSTI) program. The NSTI program currently is under development as part of the National Security Preparedness Project (NSPP), funded by Department of Energy (DOE)/National Nuclear Security Administration (NNSA) Grant No. DE FG52-07NA28084. Although the NSTI program offers a wide array of in-house business services, there are a certain number of services that will be provided by entities outside of Arrowhead Center. This report identifies the steps needed to develop an appropriate support network. The Arrowhead Center is working with external service providers and key stakeholders to establish feasible referral and implementation mechanics offering NSTI program participants the most comprehensive incubation services possible.

  2. Marketing Strategy Research

    Energy Technology Data Exchange (ETDEWEB)

    None

    2010-03-31

    This report documents the research that has been undertaken as background for preparation of a marketing campaign for middle and high school students to increase interest in national security careers at the National Nuclear Security Administration. This work is a part of the National Security Preparedness Project (NSPP), being performed under a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. Previous research on the development of a properly trained and skilled national security workforce has identified a lack of interest by k-12 students in the STEM (Science, Technology, Engineering, and Mathematics) fields. Further, participation in these careers by women and minority populations is limited and is not increasing. Added to this are low educational achievement levels in New Mexico, where the marketing campaign will be deployed.

  3. National Security Technology Incubation Project Continuation Plan

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-09-30

    This document contains a project continuation plan for the National Security Technology Incubator (NSTI). The plan was developed as part of the National Security Preparedness Project (NSPP) funded by a Department of Energy (DOE)/National Nuclear Security Administration (NNSA) grant. This continuation plan describes the current status of NSTI (staffing and clients), long-term goals, strategies, and long-term financial solvency goals.The Arrowhead Center of New Mexico State University (NMSU) is the operator and manager of the NSTI. To realize the NSTI, Arrowhead Center must meet several performance objectives related to planning, development, execution, evaluation, and sustainability. This continuation plan is critical to the success of NSTI in its mission of incubating businesses with security technology products and services.

  4. Evaluation of Accessions and Varieties of Chickpea (Cicer arietinum L. Based on Agro-physiological Traits

    Directory of Open Access Journals (Sweden)

    Sh Cheghamirza

    2013-12-01

    Full Text Available In order to study of genetic variation and identification of yield components in chickpea, a trial consists of 96 accessions of chickpea received from Iranian gen bank (Seed and Plant Improvement Institute along with five checks (Arman, Bivanij, Jam, Hashem and ILC-482 was conducted based on an augmented design in 2005-06 cropping season at research farm of agricultural college, Razi University, Kermanshah, Iran. For evaluating of accessionst the morphological, physiological and phonological traits during plant growth were measured. The result of ANOVA and mean comparisons showed significant differences among accessions for some of the traits i.e., days to first flower opening (DF-1, days to 50% flower opening (DF-50%, days to first pod opening (DP-1, days to 50% pod opening (DP-50%, days to maturity (DM, days to 90% maturity (DM90%, plant height (PH, height of first pod (PH-1P, number of pod per plant (NPPP, number of single seed per pod (1SP, number of double seed per pod (2 SP, and pod width (WP, number of see per pod (NSPP and 100 seed weight (100SW, Correlation coefficient analysis showedthe grain yield significantly correlated with biomass (r=0.84**, 1SP (r=0.80** and harvest index (HI, r=0.44**. Stepwise regression analysis showed that the NPPP, number of seed per pod (NSPP, 100SW, biomass, HI, canopy width (CanW and DP-1 positively affected on grain yield, while PH-1P and DF-1 negatively affected on grain yield.

  5. Influence of moisture on the behavior of aerosols

    International Nuclear Information System (INIS)

    Adams, R.E.; Longest, A.W.; Tobias, M.L.

    1986-01-01

    The behavior of aerosols assumed to be characteristic of those generated during light water reactor (LWR) accident sequences and released into containment has been studied in the Nuclear Safety Pilot Plant (NSPP) located at the Oak Ridge National Laboratory (ORNL). It has been observed that in a saturated steam-air environment a change occurs in the shape of aerosol agglomerates of U 3 O 8 aerosol, Fe 2 O 3 aerosol, and mixed U 3 O 8 -Fe 2 O 3 aerosol from branched-chain to spherical, and that the rate of reduction in the airborne aerosol mass concentration is increased relative to the rate observed in a dry atmosphere. The effect of a steam-air environment on the behavior of concrete aerosol is different. The shape of the agglomerated concrete aerosol is intermediate between branched-chain and spherical and the effect on the rate of reduction in airborne mass concentration appears to be slight. In a related project the shape of an agglomerated Fe 2 O 3 aerosol was observed to change from branched-chain to spherical at, or near, 100% relative humidity

  6. Marketing Strategy and Implementation

    Energy Technology Data Exchange (ETDEWEB)

    None

    2010-05-31

    This report documents the marketing campaign that has been designed for middle and high school students in New Mexico to increase interest in participation in national security careers at the National Nuclear Security Administration. This marketing campaign builds on the research that was previously conducted, as well as the focus groups that were conducted. This work is a part of the National Nuclear Security Preparedness Project (NSPP) being performed under a Department of Energy (DOE) / National Nuclear Security Administration (NNSA) grant. Outcome analysis was performed to determine appropriate marketing strategies. The analysis was based upon focus groups with middle school and high school students, student interactions, and surveys completed by students to understand and gauge student interest in Science, Technology, Engineering, and Math (STEM) subjects, interest in careers at NNSA, future job considerations, and student desire to pursue post-secondary education. Further, through the focus groups, students were asked to attend a presentation on NNSA job opportunities and employee requirements. The feedback received from the students was utilized to develop the focus and components of the marketing campaign.

  7. Development of systematic models for aerosol agglomeration and spray removal under severe accident conditions

    International Nuclear Information System (INIS)

    Kajimoto, Mitsuhiro

    2008-01-01

    Radionuclide behavior during various severe accident conditions has been addressed as one of the important issues to discuss environmental safety in nuclear power plants. The present paper deals with the development of analytical models and their validations for the agglomeration of multiple-component aerosol and spray removal that controls source terms to the environment of both aerosols and gaseous radionuclides during recirculation mode operation in a containment system for a light water reactor. As for aerosol agglomeration, the single collision kernel model that can cover all types of two-body collision of aerosol was developed. In addition, the dynamic model that can treat aerosol and vapor transfer leading to the equilibrium condition under the containment spray operation was developed. The validations of the present models for multiple-component aerosol growth by agglomeration were performed by comparisons with Nuclear Safety Pilot Plant (NSPP) experiments at Oak Ridge National Laboratory (ORNL) and AB experiments at Hanford Engineering National Laboratory (HEDL). In addition, the spray removal models were applied to the analysis of containment spray experiment (CSE) at HEDL. The results calculated by the models showed good agreements with experimental results. (author)

  8. Recent activities in the Aerosol Generation and Transport Program

    International Nuclear Information System (INIS)

    Adams, R.E.

    1984-01-01

    General statements may be made on the behavior of single-component and multi-component aerosols in the Nuclear Safety Pilot Plant vessel. The removal processes for U 3 O 8 , Fe 2 O 3 , and U 3 O 8 + Fe 2 O 3 aerosols are enhanced in a steam-air atmosphere. Steam-air seems to have little effect on removal of concrete aerosol from the vessel atmosphere. A steam-air environment causes a change in aerosol shape from chain-agglomerate to basically spherical for U 3 O 8 , Fe 2 O 3 , and U 3 O 8 + Fe 2 O 3 aerosol; for concrete the change in aerosol shape is from chain-agglomerate to partially spherical. The mass ratio of the individual components of a multi-component aerosol seems to have an observable influence on the resultant behavior of these aerosols in steam. The enhanced rate of removal of the U 3 O 8 , the Fe 2 O 3 , and the mixed U 3 O 8 + Fe 2 O 3 aerosols from the atmosphere of the NSPP vessel by steam-air is probably caused by the change in aerosol shape and the condensation of steam on the aerosol surfaces combining to increase the effect of gravitational settling. The apparent lack of an effect by steam-air on the removal rate of concrete aerosol could result from a differing physical/chemical response of the surfaces of this aerosol to condensing steam

  9. The influence of fog parameters on aerosol depletion measured in the KAEVER experiments

    International Nuclear Information System (INIS)

    Poss, G.; Weber, D.; Fritsche, B.

    1995-01-01

    The release of radioactive aerosols in the environment is one of the most serious hazards in case of an accident in nuclear power plant. Many efforts have been made in the past in numerous experimental programs like NSPP, DEMONA, VANAM, LACE, MARVIKEN, others are still underway to improve the knowledge of the aerosol behavior and depletion in a reactor containment in order to estimate the possible source term and to validate computer codes. In the German single compartment KAEVER facility the influence of size distribution, morphology, composition and solubility on the aerosol behavior is investigated. One of the more specific items is to learn about open-quotes wet depletionclose quotes means, the aerosol depletion behavior in condensing atmospheres. There are no experiments known where the fog parameters like droplet size distribution, volume concentration, respectively airborne liquid water content have been measured in- and on-line explicitly. To the authors knowledge the use of the Battelle FASP photometer, which was developed especially for this reason, for the first time gives insight in condensation behavior under accident typical thermal hydraulic conditions. It delivers a basis for code validation in terms of a real comparison of measurements and calculations. The paper presents results from open-quotes wet depletionclose quotes aerosol experiments demonstrating how depletion velocity depends on the fog parameters and where obviously critical fog parameter seem to change the regime from a open-quotes pseudo dry depletionclose quotes at a relative humidity of 100% but quasi no or very low airborne liquid water content to a real open-quotes wet depletionclose quotes under the presence of fogs with varying densities. Characteristics are outlined how soluble and insoluble particles as well as aerosol mixtures behave under condensing conditions

  10. Marketing Strategy and Implementation

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2010-09-30

    This report documents the preparation of materials for the marketing campaign that has been designed for middle and high school students in New Mexico to increase interest in participation in national security careers at the National Nuclear Security Administration. The materials and the marketing campaign build on the research that was previously completed, as well as the focus groups that were conducted. This work is a part of the National Nuclear Security Preparedness Project (NSPP). Previous research included outcome analysis to determine appropriate marketing strategies. The analysis was based upon focus groups with middle school and high school students, student interactions, and surveys completed by students to understand and gauge student interest in Science, Technology, Engineering, and Math (STEM) subjects, interest in careers at NNSA, future job considerations, and student desire to pursue post-secondary education. Further, through the focus groups, students were asked to attend a presentation on NNSA job opportunities and employee requirements. The feedback received from the students was utilized to develop the focus and components of a marketing campaign divided into DISCO (Discovering Intelligence and Security Career Opportunities) for the middle school age group and DISCO…..Your Way! for high school age groups. Both campaigns have an intertwined message that focuses on the education of students in the various national security career opportunities at NNSA using the STEM concepts and the notion that almost any career they can think of has a fit within NNSA. Further, a special emphasis has been placed on the importance of obtaining a national security clearance when working at NNSA and the steps that will need to be taken during middle school, high school, and college to be allowed this opportunity.