Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO
In order to determine the capacity of the cold neutron source refrigerator of HANARO, the nuclear heating rate at CN vertical hole is measured by using the heat-flow calorimetric method and confirmed by the calculation. The heating rate measurement device of HANARO was composed of a calorimeter sens...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | EPJ Web of Conferences |
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| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2020/01/epjconf_animma2019_04004.pdf |
| _version_ | 1818725815084384256 |
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| author | Myong-Seop Kim Byung-Gun Park |
| author_facet | Myong-Seop Kim Byung-Gun Park |
| author_sort | Myong-Seop Kim |
| collection | DOAJ |
| description | In order to determine the capacity of the cold neutron source refrigerator of HANARO, the nuclear heating rate at CN vertical hole is measured by using the heat-flow calorimetric method and confirmed by the calculation. The heating rate measurement device of HANARO was composed of a calorimeter sensor, an air containing aluminum sleeve for fitting the sensor to the CN hole, aluminum weight and a lead wire assembly. The calorimeter sensor consists of a cylindrical Al sample and container, two thermocouples and the electric heater for the calibration of the calorimeter. The sample is separated by an air gap from the Al container surrounded by an air containing Al sleeve. After installation of the calorimeter at a measurement position of HANARO, the heat transfer inside the calorimeter was simulated by the electric heating for the sample. The nuclear heating rates at the CN hole were determined at three reactor powers of 1, 4 and 8 MW by using the calibration curve and the temperature measurements at each reactor power. The measured nuclear heating rate per unit mass of Al sample at 8 MW reactor power is 0.143 W/g and it is equivalent to the 0.494 W/g at 30 MW. The nuclear heating rate was calculated by using the MCNP code. The calculation model for the whole facility including the reactor core and the reflector tank were established. In the calculation procedure, the heat generations by various radiations were evaluated with considering the prompt, delayed and activation effects. The measured heating rate was reasonably well supported by the calculation using the cold neutron facility design code. It will be very useful for the moderator cell of cold neutron source of HANARO. |
| first_indexed | 2024-12-17T21:48:18Z |
| format | Article |
| id | doaj.art-23e203982986482f9d3657260d7823ad |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T21:48:18Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-23e203982986482f9d3657260d7823ad2022-12-21T21:31:24ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012250400410.1051/epjconf/202022504004epjconf_animma2019_04004Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANAROMyong-Seop KimByung-Gun ParkIn order to determine the capacity of the cold neutron source refrigerator of HANARO, the nuclear heating rate at CN vertical hole is measured by using the heat-flow calorimetric method and confirmed by the calculation. The heating rate measurement device of HANARO was composed of a calorimeter sensor, an air containing aluminum sleeve for fitting the sensor to the CN hole, aluminum weight and a lead wire assembly. The calorimeter sensor consists of a cylindrical Al sample and container, two thermocouples and the electric heater for the calibration of the calorimeter. The sample is separated by an air gap from the Al container surrounded by an air containing Al sleeve. After installation of the calorimeter at a measurement position of HANARO, the heat transfer inside the calorimeter was simulated by the electric heating for the sample. The nuclear heating rates at the CN hole were determined at three reactor powers of 1, 4 and 8 MW by using the calibration curve and the temperature measurements at each reactor power. The measured nuclear heating rate per unit mass of Al sample at 8 MW reactor power is 0.143 W/g and it is equivalent to the 0.494 W/g at 30 MW. The nuclear heating rate was calculated by using the MCNP code. The calculation model for the whole facility including the reactor core and the reflector tank were established. In the calculation procedure, the heat generations by various radiations were evaluated with considering the prompt, delayed and activation effects. The measured heating rate was reasonably well supported by the calculation using the cold neutron facility design code. It will be very useful for the moderator cell of cold neutron source of HANARO.https://www.epj-conferences.org/articles/epjconf/pdf/2020/01/epjconf_animma2019_04004.pdfcalculation of heat generation in research reactorcalorimetercold neutron source refrigeratorhanaronuclear heating rate |
| spellingShingle | Myong-Seop Kim Byung-Gun Park Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO EPJ Web of Conferences calculation of heat generation in research reactor calorimeter cold neutron source refrigerator hanaro nuclear heating rate |
| title | Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO |
| title_full | Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO |
| title_fullStr | Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO |
| title_full_unstemmed | Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO |
| title_short | Confirmation of Nuclear Heating Rate for Installation of Cold Neutron Source at HANARO |
| title_sort | confirmation of nuclear heating rate for installation of cold neutron source at hanaro |
| topic | calculation of heat generation in research reactor calorimeter cold neutron source refrigerator hanaro nuclear heating rate |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2020/01/epjconf_animma2019_04004.pdf |
| work_keys_str_mv | AT myongseopkim confirmationofnuclearheatingrateforinstallationofcoldneutronsourceathanaro AT byunggunpark confirmationofnuclearheatingrateforinstallationofcoldneutronsourceathanaro |