Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module
Unlike design basis accidents, some inherent uncertainties of the reliability of instrumentations are expected while subjected to harsh environments (e.g., high temperature and pressure, high humidity, and high radioactivity) occurring in severe nuclear accident conditions. Even under such condition...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2012/656590 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850232446108303360 |
|---|---|
| author | Kil-Mo Koo Jin-Ho Song Sang-Baik Kim Kwang-Il Ahn Won-Pil Baek Kil-Nam Oh Gyu-Tae Kim |
| author_facet | Kil-Mo Koo Jin-Ho Song Sang-Baik Kim Kwang-Il Ahn Won-Pil Baek Kil-Nam Oh Gyu-Tae Kim |
| author_sort | Kil-Mo Koo |
| collection | DOAJ |
| description | Unlike design basis accidents, some inherent uncertainties of the reliability of instrumentations are expected while subjected to harsh environments (e.g., high temperature and pressure, high humidity, and high radioactivity) occurring in severe nuclear accident conditions. Even under such conditions, an electrical signal should be within its expected range so that some mitigating actions can be taken based on the signal in the control room. For example, an industrial process control standard requires that the normal signal level for pressure, flow, and resistance temperature detector sensors be in the range of 4~20 mA for most instruments. Whereas, in the case that an abnormal signal is expected from an instrument, such a signal should be refined through a signal validation process so that the refined signal could be available in the control room. For some abnormal signals expected under severe accident conditions, to date, diagnostics and response analysis have been evaluated with an equivalent circuit model of real instruments, which is regarded as the best method. The main objective of this paper is to introduce a program designed to implement a diagnostic and response analysis for equivalent circuit modeling. The program links signal analysis tool code to abnormal signal simulation engine code not only as a one body order system, but also as a part of functions of a PC-based ASSA (abnormal signal simulation analysis) module developed to obtain a varying range of the R-C circuit elements in high temperature conditions. As a result, a special function for abnormal pulse signal patterns can be obtained through the program, which in turn makes it possible to analyze the abnormal output pulse signals through a response characteristic of a 4~20 mA circuit model and a range of the elements changing with temperature under an accident condition. |
| format | Article |
| id | doaj-art-0062fe15385e4d2b8edd33b007885942 |
| institution | OA Journals |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-0062fe15385e4d2b8edd33b0078859422025-08-20T02:03:12ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832012-01-01201210.1155/2012/656590656590Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis ModuleKil-Mo Koo0Jin-Ho Song1Sang-Baik Kim2Kwang-Il Ahn3Won-Pil Baek4Kil-Nam Oh5Gyu-Tae Kim6Severe Accident and PHWR Safety Research Division, Korea Atomic Energy Research Institute, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of KoreaSevere Accident and PHWR Safety Research Division, Korea Atomic Energy Research Institute, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of KoreaSevere Accident and PHWR Safety Research Division, Korea Atomic Energy Research Institute, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of KoreaIntegrated Safety Assessment Division, KAERI, 150 Dukjin-dong, Yuseong-gu, Daejeon 305-353, Republic of KoreaNuclear Safety Research Headquarter, KAERI, 150 Dukjin-dong, Yuseong-gu, Daejeon 305-353, Republic of KoreaDepartment of Optical Communications Engineering, Gwangju University, 52 Hyuodeok-ro, Nam-gu, Gwangju 503-703, Republic of KoreaDepartment of Electrical Engineering, Korea University, 5ka, Anam-dong, Sungbuk-ku, Seoul 136-701, Republic of KoreaUnlike design basis accidents, some inherent uncertainties of the reliability of instrumentations are expected while subjected to harsh environments (e.g., high temperature and pressure, high humidity, and high radioactivity) occurring in severe nuclear accident conditions. Even under such conditions, an electrical signal should be within its expected range so that some mitigating actions can be taken based on the signal in the control room. For example, an industrial process control standard requires that the normal signal level for pressure, flow, and resistance temperature detector sensors be in the range of 4~20 mA for most instruments. Whereas, in the case that an abnormal signal is expected from an instrument, such a signal should be refined through a signal validation process so that the refined signal could be available in the control room. For some abnormal signals expected under severe accident conditions, to date, diagnostics and response analysis have been evaluated with an equivalent circuit model of real instruments, which is regarded as the best method. The main objective of this paper is to introduce a program designed to implement a diagnostic and response analysis for equivalent circuit modeling. The program links signal analysis tool code to abnormal signal simulation engine code not only as a one body order system, but also as a part of functions of a PC-based ASSA (abnormal signal simulation analysis) module developed to obtain a varying range of the R-C circuit elements in high temperature conditions. As a result, a special function for abnormal pulse signal patterns can be obtained through the program, which in turn makes it possible to analyze the abnormal output pulse signals through a response characteristic of a 4~20 mA circuit model and a range of the elements changing with temperature under an accident condition.http://dx.doi.org/10.1155/2012/656590 |
| spellingShingle | Kil-Mo Koo Jin-Ho Song Sang-Baik Kim Kwang-Il Ahn Won-Pil Baek Kil-Nam Oh Gyu-Tae Kim Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module Science and Technology of Nuclear Installations |
| title | Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module |
| title_full | Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module |
| title_fullStr | Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module |
| title_full_unstemmed | Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module |
| title_short | Response Analysis on Electrical Pulses under Severe Nuclear Accident Temperature Conditions Using an Abnormal Signal Simulation Analysis Module |
| title_sort | response analysis on electrical pulses under severe nuclear accident temperature conditions using an abnormal signal simulation analysis module |
| url | http://dx.doi.org/10.1155/2012/656590 |
| work_keys_str_mv | AT kilmokoo responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT jinhosong responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT sangbaikkim responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT kwangilahn responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT wonpilbaek responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT kilnamoh responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule AT gyutaekim responseanalysisonelectricalpulsesunderseverenuclearaccidenttemperatureconditionsusinganabnormalsignalsimulationanalysismodule |