=============== Digital Commons =============== Unique Fields from Digital Commons ================================== Here are the results of a schema analysis from variety.js that lists the unique fields available in qdc. +----------------------------------------------+--------------------------------------+-------------+------------------------+ | key | types | occurrences | percents | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | _id | ObjectId | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata | Object | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc | Object | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.@xmlns:dc | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.@xmlns:oai_dc | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.@xmlns:xsi | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.@xsi:schemaLocation | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:title | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | oai_provider | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | record_id | String | 36974 | 100.000000000000000000 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:identifier | String (36672),Array (136) | 36808 | 99.551035863038890739 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:datecreated | String | 33023 | 89.314112619678695637 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:creator | String (24970),Array (3542) | 28512 | 77.113647427922330735 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:subject | Array (13831),String (12434) | 26265 | 71.036403959539129005 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:type | String (22454),null (73) | 22527 | 60.926597068210092800 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:descriptionabstract | String (17323),null (25) | 17348 | 46.919456915670473052 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:contributor | Array (10511),String (1961),null (1) | 12473 | 33.734516146481311694 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:thesisdegreediscipline | String | 11461 | 30.997457672959377817 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:thesisdegreelevel | String | 10612 | 28.701249526694432745 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:thesisdegreename | String | 10601 | 28.671498891112673135 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:description | Array (451),String (6000),null (1) | 6452 | 17.450100070319685130 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:dateavailable | String | 2088 | 5.647211554065018291 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:descriptionnote | String (402),null (6) | 408 | 1.103478119759831122 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:rights | String | 222 | 0.600421918104614094 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:rightslicense | String | 88 | 0.238005084654081239 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:coveragespatial | String | 69 | 0.186617623194677340 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:publisher | String | 69 | 0.186617623194677340 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:coveragespatiallat | String | 4 | 0.010818412938821876 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ | metadata.oai_dc:dc.dc:coveragespatiallong | String | 4 | 0.010818412938821876 | +----------------------------------------------+--------------------------------------+-------------+------------------------+ Metadata Mapping ================ This metadata mapping maps Digital Commons QDC to Primo VE DublinCore Expanded based on the `Mapping to the Display, Facets, and Search Sections in the Primo VE Record `_ and the `Configuring Import Profiles for Primo VE `_ documentation. Metadata as mapped as QDC so that theses advisors are searchable and viewable in the Primo record. This is not possible with simple dc. +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | QDC | Primo VE Expanded DublinCore | Display Field | Facets Field | Search Field | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:title | dc:title | Title | | Title | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:identifier | dc:identifier | | | General | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:datecreated | dc:date | Creation Date | Creation Date | Creation Date | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:creator | dc:creator | Creator | Creator & Contributors | Creator & Contributor | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:subject | dc:subject | Subjects | Topic | Subjects | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:type | dc:subject | Subjects | Topic | Subjects | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:descriptionabstract | dcterms:abstract | Description | Description | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:contributor | dcterms:contributor | Contributor | Creator & Contributors | Creator & Contributor | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:thesisdegreediscipline | dcterms:subject | Subjects | Topic | Subjects | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:thesisdegreelevel | if this field exists, map discovery:resourceType field to dissertationselse: text_resources | | | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:thesisdegreename | dcterms:description | Description | Description | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:description | dc:description | Description | Description | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:dateavailable | dcterms:date | | | Creation Date | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:descriptionnote | dcterms:description | Description | Description | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:rights | dc:rights | Rights | | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:rightslicense | dcterms:rights | Rights | | | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:coveragespatial | dcterms:coverage | | | General | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:publisher | dcterms:publisher | Publisher | | General | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:coveragespatiallat | dcterms:spatial | | | General | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ | dc:coveragespatiallong | dcterms:spatial | | | General | +---------------------------+----------------------------------------------------------------------------------------------+---------------+------------------------+-----------------------+ Discovery Import Profile ======================== * root element tag: `ListRecords` * record elements tag: `record` * xpath to the identifier tag: `record/header/identifier/text()` * base-url: `https://dpla.lib.utk.edu/repox/OAIHandler` * metadata format: `oai_qdc` Normalization Rules =================== .. code-block:: xml :name: Sample XML Record :caption: Sample XML Record
oai:trace.tennessee.edu:utk_gradthes-1127 2010-02-01T23:31:58Z publication:utk_gradthes publication:utk-coll publication:utk-grad
The Relations of the Cherokee Indians with the English in America Prior to 1763 Buchanan, David P. 1923-12-01T08:00:00Z Thesis Master of Arts ARRAY(0x7f7024cfef58) Political History Social History United States History Thesis (M.A.) at University of Tennessee from 1923 describing relations between the Cherokee and English prior to 1763. This thesis by David Buchanan contains detailed accounts of the Cherokee nation before colonization of the Cherokee territories in the Appalachian region as well as interactions between the English army and settlers. https://trace.tennessee.edu/utk_gradthes/98 .. code-block:: rst :name: Copy First Title :caption: Copy First Title rule "copy first title" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='title']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='title'][1]" to "dc"."title" end .. code-block:: rst :name: Copy identifiers :caption: Copy identifiers rule "copy identifiers" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='identifier']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='identifier']" to "dc"."identifier" end .. code-block:: rst :name: Copy date created :caption: Copy date created rule "copy date created" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='date.created']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='date.created']" to "dc"."date" end .. code-block:: rst :name: Copy Creators :caption: Copy Creators rule "copy creators" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='creator']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='creator']" to "dc"."creator" end .. code-block:: rst :name: Copy subjects to subject :caption: Copy subjects to subject rule "copy subjects" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='subject']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='subject']" to "dc"."subject" end .. code-block:: :name: Copy types to subject since they aren't types :caption: Copy type to subject since they aren't types rule "copy types to subject" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='type']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='type']" to "dc"."subject" end .. code-block:: :name: Copy descriptionabstracts to dcterms abstract :caption: Copy descriptionabstracts to dcterms abstract rule "copy descriptionabstracts" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description.abstract']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description.abstract']" to "dcterms"."abstract" end .. code-block:: :name: Copy thesisdegreediscipline :caption: Copy thesisdegreediscipline rule "copy thesisdegreediscipline" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.discipline']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.discipline']" to "dcterms"."subject" end .. code-block:: :name: Determine resource type :caption: Determine resource type rule "determine if etd" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.level']" then set "dissertations" in "discovery"."resourceType" end rule "determine if not etd" when not exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.level']" then set "articles" in "discovery"."resourceType" end .. code-block:: :name: Copy thesisdegreename to description :caption: Copy thesisdegreename to description rule "Copy thesisdegreename" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.name']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='thesis.degree.name']" to "dcterms"."description" end .. code-block:: :name: Copy description to description :caption: Copy description to description rule "Copy description" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description']" to "dc"."description" end .. code-block:: :name: Copy dcdateavailable to dcterms:date :caption: Copy dcdateavailable to dcterms:date rule "Copy dcdateavailable to dcterms:date" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='date.available']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='date.available']" to "dcterms"."date" end .. code-block:: :name: Copy description to dc:descriptionnote :caption: Copy description to dc:descriptionnote rule "Copy description to dc:descriptionnote" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description.note']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='description.note']" to "dcterms"."description" end .. code-block:: :name: Copy rights :caption: Copy rights rule "Copy rights" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='rights']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='rights']" to "dc"."rights" end rule "Copy rightslicense" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='rights.license']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='rights.license']" to "dcterms"."rights" end .. code-block:: :name: Copy coveragespatial :caption: Copy coveragespatial rule "Copy coveragespatial" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial']" to "dcterms"."spatial" end rule "Copy coveragespatiallat" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial.lat']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial.lat']" to "dcterms"."spatial" end rule "Copy coveragespatiallong" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial.long']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='coverage.spatial.long']" to "dcterms"."spatial" end .. code-block:: :name: Copy publisher :caption: Copy publisher rule "Copy publisher" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='publisher']" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='publisher']" to "dc"."publisher" end .. code-block:: :name: Copy contributors if contributor does not contain Array :caption: Copy contributors if contributor does not contain Array rule "Copy contributors if not Array" when exist "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='contributor'][not(contains(text(), 'ARRAY'))]" then copy "/record/metadata[1]/*[namespace-uri()='http://www.openarchives.org/OAI/2.0/oai_dc/' and local-name()='dc'][1]/*[namespace-uri()='http://purl.org/dc/elements/1.1/' and local-name()='contributor']" to "dcterms"."contributor" end Normalized Record Post Import ============================= A sample record as XML: .. code-block:: xml :name: Sample XML :caption: A sample ETD as XML
oai:trace.tennessee.edu:utk_gradthes-6890 2020-02-13T02:30:08Z publication:utk-coll publication:utk_gradthes publication:utk-grad
STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS Singh, Vikram 2019-05-01T07:00:00Z Thesis Master of Science Nuclear Engineering Belle Upadhyaya Ondřej Chvála, Laurence Miller, Lawrence Heilbronn molten-salt reactor dynamics modeling fission product poisoning load-following sensitivity analysis Molten-Salt Reactors (MSR) are a Gen-IV reactor concept being investigated by companies and institutions alike. These reactors are considerably different from the current fleet of Light-Water Reactors and outside the experience base of most Nuclear Engineers. The fluid nature of the fuel leads to delayed temperature and reactivity feedback effects unique to each reactor design that need to be characterized to determine operability and safety limits. Moreover, the design space under consideration encompasses various fuel-cycles, neutron spectra, and materials. This requires a modeling methodology that can be applied to the breadth of designs under development and is the subject of ongoing research at the University of Tennessee. This thesis presents a dynamic modeling approach that was validated against experimental data from the Molten-Salt Reactor Experiment. The developed lumped-parameter models are nonlinear and represent time rate of change in mass and energy in all parts of the reactor. Reactivity feedbacks arising from changes in temperature and neutron poison concentrations are taken into account. These models can be used to study both the time and frequency response to perturbations caused during normal operating conditions and during anomalies resulting from failure of certain components. The thesis incorporates material published in a series of journal articles and conference proceedings. The validated modeling approach is detailed, and all equations and parameters of interest are listed. Three reactor systems are modeled, namely the Molten-Salt Reactor Experiment, two-fluid Molten-Salt Breeder Reactor, and a plant-level model based on the Molten-Salt Demonstration Reactor. Application of the models to studying operational anomalies, dynamic effects of xenon and samarium neutron poisons, parametric sensitivity analysis, and load-following are also presented. From the investigated perturbations for the presented designs, it is found that these systems are stable and self-regulating. Modeling results suggest that well-designed MSRs with adequate negative feedback exhibit excellent load-following characteristics that can be leveraged to engineer control systems offering a great deal of autonomy. https://trace.tennessee.edu/utk_gradthes/5482 The same record nomalized as JSON: .. code-block:: json :name: Primo Normalized Record :caption: The record normalized in Primo. { "display": { "source": ["UTK_DigitalCommons_TRACE"], "type": ["dissertation"], "title": ["STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS"], "subject": ["Nuclear Engineering", "molten-salt reactor", "dynamics", "modeling", "fission product poisoning", "load-following", "sensitivity analysis"], "identifier": ["https://trace.tennessee.edu/utk_gradthes/5482"], "creator": ["Singh, Vikram"], "description": ["Portions of this document were previous published in journal articles and conference proceedings. This material has been incorporated here with permission from the publishers. The first page of each chapter presents a brief background on the work carried out by the author and his colleagues, and provides references to the published articles.", "Master of Science", "Molten-Salt Reactors (MSR) are a Gen-IV reactor concept being investigated by companies and institutions alike. These reactors are considerably different from the current fleet of Light-Water Reactors and outside the experience base of most Nuclear Engineers. The fluid nature of the fuel leads to delayed temperature and reactivity feedback effects unique to each reactor design that need to be characterized to determine operability and safety limits. Moreover, the design space under consideration encompasses various fuel-cycles, neutron spectra, and materials. This requires a modeling methodology that can be applied to the breadth of designs under development and is the subject of ongoing research at the University of Tennessee. This thesis presents a dynamic modeling approach that was validated against experimental data from the Molten-Salt Reactor Experiment. The developed lumped-parameter models are nonlinear and represent time rate of change in mass and energy in all parts of the reactor. Reactivity feedbacks arising from changes in temperature and neutron poison concentrations are taken into account. These models can be used to study both the time and frequency response to perturbations caused during normal operating conditions and during anomalies resulting from failure of certain components. The thesis incorporates material published in a series of journal articles and conference proceedings. The validated modeling approach is detailed, and all equations and parameters of interest are listed. Three reactor systems are modeled, namely the Molten-Salt Reactor Experiment, two-fluid Molten-Salt Breeder Reactor, and a plant-level model based on the Molten-Salt Demonstration Reactor. Application of the models to studying operational anomalies, dynamic effects of xenon and samarium neutron poisons, parametric sensitivity analysis, and load-following are also presented. From the investigated perturbations for the presented designs, it is found that these systems are stable and self-regulating. Modeling results suggest that well-designed MSRs with adequate negative feedback exhibit excellent load-following characteristics that can be leveraged to engineer control systems offering a great deal of autonomy."], "mms": ["9925897935302311"], "contributor": ["Belle Upadhyaya", "Ondřej Chvála, Laurence Miller, Lawrence Heilbronn"], "version": ["0"] }, "control": { "sourcerecordid": ["9925897935302311"], "recordid": ["alma9925897935302311"], "sourceid": "alma", "originalsourceid": ["urn:dpla.lib.utk.edu.utk_tracerepox:f9ed25be-aef2-4b5e-b842-9aabab6f50f6"], "sourcesystem": ["Other"], "sourceformat": ["DC"], "score": ["1.0"] }, "addata": { "au": ["Singh, Vikram"], "aucorp": ["Belle Upadhyaya", "Ondřej Chvála, Laurence Miller, Lawrence Heilbronn"], "abstract": ["Molten-Salt Reactors (MSR) are a Gen-IV reactor concept being investigated by companies and institutions alike. These reactors are considerably different from the current fleet of Light-Water Reactors and outside the experience base of most Nuclear Engineers. The fluid nature of the fuel leads to delayed temperature and reactivity feedback effects unique to each reactor design that need to be characterized to determine operability and safety limits. Moreover, the design space under consideration encompasses various fuel-cycles, neutron spectra, and materials. This requires a modeling methodology that can be applied to the breadth of designs under development and is the subject of ongoing research at the University of Tennessee. This thesis presents a dynamic modeling approach that was validated against experimental data from the Molten-Salt Reactor Experiment. The developed lumped-parameter models are nonlinear and represent time rate of change in mass and energy in all parts of the reactor. Reactivity feedbacks arising from changes in temperature and neutron poison concentrations are taken into account. These models can be used to study both the time and frequency response to perturbations caused during normal operating conditions and during anomalies resulting from failure of certain components. The thesis incorporates material published in a series of journal articles and conference proceedings. The validated modeling approach is detailed, and all equations and parameters of interest are listed. Three reactor systems are modeled, namely the Molten-Salt Reactor Experiment, two-fluid Molten-Salt Breeder Reactor, and a plant-level model based on the Molten-Salt Demonstration Reactor. Application of the models to studying operational anomalies, dynamic effects of xenon and samarium neutron poisons, parametric sensitivity analysis, and load-following are also presented. From the investigated perturbations for the presented designs, it is found that these systems are stable and self-regulating. Modeling results suggest that well-designed MSRs with adequate negative feedback exhibit excellent load-following characteristics that can be leveraged to engineer control systems offering a great deal of autonomy."], "format": ["dissertation"], "genre": ["dissertation"], "ristype": ["thes"], "btitle": ["STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS"] }, "sort": { "title": ["STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS"], "author": ["Singh, Vikram"] }, "search": { "rtype": "dissertations", "general": "https://trace.tennessee.edu/utk_gradthes/5482", "creator": "Singh, Vikram", "contributor": ["Ondřej Chvála, Laurence Miller, Lawrence Heilbronn", "Belle Upadhyaya"], "sort_title": "STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS", "subject": ["sensitivity analysis", "load-following", "fission product poisoning", "modeling", "dynamics", "molten-salt reactor", "Nuclear Engineering"], "description": ["Molten-Salt Reactors (MSR) are a Gen-IV reactor concept being investigated by companies and institutions alike. These reactors are considerably different from the current fleet of Light-Water Reactors and outside the experience base of most Nuclear Engineers. The fluid nature of the fuel leads to delayed temperature and reactivity feedback effects unique to each reactor design that need to be characterized to determine operability and safety limits. Moreover, the design space under consideration encompasses various fuel-cycles, neutron spectra, and materials. This requires a modeling methodology that can be applied to the breadth of designs under development and is the subject of ongoing research at the University of Tennessee. This thesis presents a dynamic modeling approach that was validated against experimental data from the Molten-Salt Reactor Experiment. The developed lumped-parameter models are nonlinear and represent time rate of change in mass and energy in all parts of the reactor. Reactivity feedbacks arising from changes in temperature and neutron poison concentrations are taken into account. These models can be used to study both the time and frequency response to perturbations caused during normal operating conditions and during anomalies resulting from failure of certain components. The thesis incorporates material published in a series of journal articles and conference proceedings. The validated modeling approach is detailed, and all equations and parameters of interest are listed. Three reactor systems are modeled, namely the Molten-Salt Reactor Experiment, two-fluid Molten-Salt Breeder Reactor, and a plant-level model based on the Molten-Salt Demonstration Reactor. Application of the models to studying operational anomalies, dynamic effects of xenon and samarium neutron poisons, parametric sensitivity analysis, and load-following are also presented. From the investigated perturbations for the presented designs, it is found that these systems are stable and self-regulating. Modeling results suggest that well-designed MSRs with adequate negative feedback exhibit excellent load-following characteristics that can be leveraged to engineer control systems offering a great deal of autonomy.", "Master of Science", "Portions of this document were previous published in journal articles and conference proceedings. This material has been incorporated here with permission from the publishers. The first page of each chapter presents a brief background on the work carried out by the author and his colleagues, and provides references to the published articles."], "journal_title": "STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS", "title": "STUDY OF THE DYNAMIC BEHAVIOR OF MOLTEN-SALT REACTORS", "source_code": "UTK_DigitalCommons_TRACE", "facet_creatorcontrib": ["Singh, Vikram", "Ondřej Chvála, Laurence Miller, Lawrence Heilbronn", "Belle Upadhyaya"], "sort_author": "Singh, Vikram" }, "delivery": { "bestlocation": null, "holding": null, "electronicServices": [{ "adaptorid": "ALMA_01", "ilsApiId": "urn:dpla.lib.utk.edu.utk_tracerepox:f9ed25be-aef2-4b5e-b842-9aabab6f50f6", "serviceUrl": "https://trace.tennessee.edu/utk_gradthes/5482", "licenceUrl": null, "licenceExist": "false", "packageName": "Link to Resource", "availiability": null, "authNote": null, "publicNote": null, "serviceNotAvailable": null, "serviceNotAvailableReason": null, "relatedTitle": null, "numberOfFiles": 0, "hasAccess": false, "serviceType": "ELECTRONIC", "fileType": null, "pdfFilesUrl": null, "serviceDescription": null, "researchFileList": null, "researchLinksList": null, "@id": null }], "quickAccessService": null, "deliveryCategory": ["Remote Search Resource"], "serviceMode": ["Viewit"], "availability": ["ext_not_restricted"], "availabilityLinks": ["directlink"], "availabilityLinksUrl": ["https://trace.tennessee.edu/utk_gradthes/5482"], "displayedAvailability": "ext_not_restricted", "displayLocation": null, "additionalLocations": null, "physicalItemTextCodes": null, "feDisplayOtherLocations": null, "almaInstitutionsList": [], "recordInstitutionCode": null, "recordOwner": "01UTN_KNOXVILLE", "GetIt1": [{ "category": "Remote Search Resource", "links": [{ "isLinktoOnline": true, "getItTabText": "service_viewit", "adaptorid": "ALMA_01", "ilsApiId": "urn:dpla.lib.utk.edu.utk_tracerepox:f9ed25be-aef2-4b5e-b842-9aabab6f50f6", "link": "https://trace.tennessee.edu/utk_gradthes/5482", "inst4opac": "", "displayText": null, "@id": "_:0" }] }], "physicalServiceId": null, "link": [{ "displayLabel": "Link to Resource", "linkURL": "https://trace.tennessee.edu/utk_gradthes/5482", "linkType": "addlink", "publicNote": null, "@id": "_:0" }, { "displayLabel": "thumbnail", "linkURL": "", "linkType": "http://purl.org/pnx/linkType/thumbnail", "publicNote": null, "@id": "_:0" }], "hasD": null } }