scholarly journals Study of bathymetry in determining Nuclear Power Plant Site in Gosong Beach Waters, West Kalimantan

2021 ◽  
Vol 944 (1) ◽  
pp. 012051
Author(s):  
H Susiati ◽  
T A Ryanto ◽  
H Suntoko ◽  
Risko ◽  
Muhardi ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power ◽  
West Kalimantan ◽  
Single Beam ◽  
Average Value ◽  
Water Conditions ◽  
Plant Site ◽  
Tidal Data ◽  
Slope Class

Abstract Gosong Beach waters are located in Bengkayang Regency West Kalimantan, where the water conditions are influenced by the South China Sea. This study aimed to determine the shape of the bottom morphology profile (bathymetry). The bottom morphology of the water was used as initial data to determine the location of nuclear sites in the study area. Bathymetry measurements were conducted using a single beam echosounder corrected by tidal data to determine the chart datum value, then used to correct sea depth for accuracy. The measurement of tidal data was conducted for 15 days in March 2021 with an interval of 1 hour. The results showed that the type of tidal obtained was mixed tide mixed with the double daily slope with Formzhal (F) value 0.77. The depth of the waters at the study site ranges from 0.9 to 8.45 meters. The average value of the coastal slope shows that spatially there are variations in the slope class with the percentage value ranging from 0.13 to 2.29% which is included in the classification of flat coastal slopes.

scholarly journals INVESTIGATION OF RELATIONSHIP BETWEEN PINE (PINUS SYLVESTRIS L.) BIOMASS AND 137CS SPECIFIC ACTIVITY IN WOOD

2006 ◽  
Vol 14 (3) ◽  
pp. 135-140 ◽  
Author(s):  
Donatas Butkus ◽  
Ingrida Pliopaitė Bataitienė
Keyword(s):  
Power Plant ◽  
Pinus Sylvestris ◽  
Nuclear Power ◽  
Specific Activity ◽  
Chernobyl Nuclear Power Plant ◽  
Biomass Growth ◽  
Annual Rings ◽  
Global Pollution ◽  
Nuclear Explosions ◽  
Average Value

The paper analyses relationship between pine (Pinus sylvestris L.) biomass and the specific activity of an artificial radio‐isotope 137Cs in wood. The specific activity of 137Cs was measured in the segments of pine (Pinus sylvestris L.) annual rings. The biomass of segments and the density of wood were estimated experimentally. It is determined that relationship between pine (Pinus sylvestris L.) biomass and pine age is not linear. In the variation of biomass are time when biomass grows slowly (25–55 pine age or 1959–1990 m. period). The specific activity of 137Cs in pine annual rings depends on the rapidity of biomass growth. The specific activity of 137Cs varied from 0,3 ± 0,1 to 13,4 ± 2,7 Bq/kg when the biomass grew rapidly and its average value was 4,3±1,1 Bq/kg. When the biomass grew slowly, the specific activity of 137Cs varied from 1,8 ± 0,7 to 20,6 ± 5,3 Bq/kg, and its average value was 9,6 ± 2,6 Bq/kg. Global pollution after nuclear explosions, pollution after the Chernobyl Nuclear Power Plant accident and uptake of 137Cs from roots had an influence on the specific activity of 137Cs in pine annual rings.

scholarly journals Modeling on 137Cs Radioactive Dispersion in Gosong Coast as The Candidate Location for Nuclear Power Plant

2021 ◽  
Vol 24 (3) ◽  
pp. 291-301
Author(s):  
Akhmad Tri Prasetyo ◽  
Muslim Muslim ◽  
Heny Suseno
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radioactive Waste ◽  
Nuclear Power ◽  
Marine Pollution ◽  
Ocean Currents ◽  
Ocean Current ◽  
West Kalimantan ◽  
Spring Period ◽  
Candidate Location

The study of radioactive dispersion in the ocean should be conducted to prepare the construction of nuclear power plant (NPP) in Gosong Coast, West Kalimantan. This study estimated the distribution of 137Cs radioactive from various scenarios of radioactive waste dumping if nuclear emergency is occurred during NPP’s operation. These scenarios were distinguished based on their volume discharges of radioactive waste into the ocean, included 10 m3 (Scenario I), 50 m3 (Scenario II), and 100 m3 (Scenario III).  Model dispersions were constructed for 15 days by Delft3D-Flow module. The simulation showed that ocean current directions were not significantly different among spring and neap tide, instead the ocean current during the spring period dominantly increased rather than neap period. Ocean currents at Gosong Coast flowed parallel to the shoreline towards Singkawang Coastal Area during ebb tide. Meanwhile, during flood tide, ocean currents at Gosong Coast flowed offshore through Burung Archipelagic. The dispersed model showed the distribution of 137Cs radioactive for 15 days reaching to coastal areas of Burung Archipelagic, Singkawang, and Southern Sambas Coast. Each scenario of the disposal system did not influence the marine pollution of the West Kalimantan Sea.

scholarly journals V　Characteristics of Air Dose Rate Distribution in the Environment around the Fukushima Nuclear Power Plant site

RADIOISOTOPES ◽  
2015 ◽  
Vol 64 (9) ◽  
pp. 589-607
Author(s):  
Satoshi MIKAMI ◽  
Norihiro MATSUDA ◽  
Masaki ANDOH ◽  
Sakae KINASE ◽  
Mitsuaki KITANO ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Dose Rate ◽  
Nuclear Power ◽  
Rate Distribution ◽  
Plant Site

scholarly journals Probabilistic seismic hazard assessment for a new-build nuclear power plant site in the UK

2018 ◽  
Vol 17 (1) ◽  
pp. 1-36 ◽  
Author(s):  
Iain J. Tromans ◽  
Guillermo Aldama-Bustos ◽  
John Douglas ◽  
Angeliki Lessi-Cheimariou ◽  
Simon Hunt ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Seismic Hazard ◽  
Hazard Assessment ◽  
Nuclear Power ◽  
Seismic Hazard Assessment ◽  
Probabilistic Seismic Hazard Assessment ◽  
Probabilistic Seismic Hazard ◽  
Plant Site ◽  
The Uk

Research on Electric and I&C Equipment Safety Function Classification of Nuclear Power Plant

2021 ◽  
Author(s):  
Wang Yuqi ◽  
Sun Qian
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Function Analysis ◽  
System Component ◽  
Design Work ◽  
Equipment Safety ◽  
Safety Function

Abstract Classification of System, Component and Structure (SSC) is the base as well as high level demand of nuclear power plant. Equipment classification including electric and Instrument and Control (I&C) equipment is the precondition of correct design regulation and standard. Safety function classification is key pass of electric and I&C equipment classification. This paper researches the method of nuclear power plant electric and I&C equipment safety function classification. Firstly from view of function, it explains the importance of function classification. Then function analysis and classification of equipment is implemented by design order. Lastly from view of accident analysis, function classification is validated, and a complete approach of function classification is formed. The purpose of this paper is the NPP electric and I&C equipment safety function classification as an example, to study and summarize the method of the electric and I&C equipment safety function classification, and to provide the basis for specific items design work according to design requirements. At the same time, a practical method is provided for other similar NPP electric and I&C equipment classification work. The electric and I&C equipment function classification of nuclear power plant satisfy the basic principles requirement of relative nuclear power rules and codes. It provides an important basis of equipment classification for next nuclear power plants.

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