Piqua nuclear power plant
| Piqua nuclear power plant | ||
|---|---|---|
 |
||
| location | ||
|
||
| Coordinates | 40 ° 7 '56 " N , 84 ° 14' 5" W | |
| Country: | United States | |
| Data | ||
| Owner: | United States Atomic Energy Commission | |
| Operator: | City of Piqua Government | |
| Project start: | not exactly known | |
| Commercial operation: | 1963 | |
| Shutdown: | 1966 | |
|
Decommissioned reactors (gross): |
1 (12 MW) | |
| Energy fed in since commissioning: | 0 GWh | |
| Was standing: | September 13, 2008 | |
| The data source of the respective entries can be found in the documentation . | ||
The Piqua nuclear power plant ( English Piqua Nuclear Power Facility or Piqua Nuclear Generating Station , abbreviation PNPF ) is located near Piqua , Ohio in the United States on the banks of the Great Miami River about 55 kilometers (34 miles) north of Dayton .
reactor
The reactor in Piqua is an "OMRE". It had a net output of 12 MWe , a gross output of 12 MWe and a thermal output of 45.5 MW. It was an organically cooled and moderated reactor that was operated as a demonstration project between 1963 and 1966 by the United States Atomic Energy Commission . The reactor was shut down due to problems with the organic moderator / coolant .
history
Construction of the reactor began on January 1, 1960. On July 1, 1963, the reactor was first synchronized with the power grid, and on November 1, 1963, it went into commercial operation. It was one of the first municipal owned and operated nuclear power plants in the world and the first in the United States. On January 1, 1966, the reactor was shut down. The facility was owned by the United States Atomic Energy Commission and operated under contract by the City of Piqua. In 1966, the Atomic Energy Commission terminated the contract with the City of Piqua to operate and maintain the facility. The Piqua nuclear power plant was shut down and dismantled between 1967 and 1969. At this point, the reactor fuel coolant and most of the radioactive materials were removed from the facility. The reactor pressure vessel and the spaces between the vessel and the cavity liner were then filled with dry quartz sand.
The only current activities in the facility are the annual monitoring and controls by the Environmental Management program . The environmental management activities in the plant are currently planned until the end of 2018. It is expected that the plant will be handed over to the city of Piqua. The reactor pressure vessel and other radioactive parts of the reactor complex remain in place. Safety measures have been taken to avert danger. The decommissioning activities were carried out by staff from the city of Piqua. In February 1969, the city of Piqua dismantled the reactor and converted the building for use as office and storage facilities. The fuel and control rods as well as the radioactive and contaminated pipelines were taken to a national warehouse. The organic coolant was burned. Contaminated piping and equipment inside the reactor building were removed or decontaminated and the above-ground parts of the building became a warehouse. The reactor pressure vessel was filled with sand and all feedthroughs into the reactor complex were plugged. The safety lock of the reactor building was filled and paved. The underground complex was then sealed with a waterproof barrier. This prevented unauthorized access or leakage of radioactivity. The reactor pressure vessel was sealed in the containment. The total radioactivity sealed in the facility was 260,000 curies. Analyzes have predicted that radioactivity will no longer be dangerous in 120 years. There is currently no proven contamination outside the containment structure in the nuclear power plant. Smaller amounts of activity products are scattered in the thermal protection device that surrounds the reactor vessel. The results of the annual monitoring and maintenance activities currently show that there is no detectable release from the decommissioned facility into the environment.
The facility was leased to the city of Piqua for use as offices and equipment storage. An investigation into the facility was launched in December 1991 to document its radiological condition. The data showed that the measured activity levels are essentially the same as those in the natural environment. The only exception was that a low level of radioactive contamination was detected in a drain at 56.5 meters, but radiation exposure in this area was also typical of the natural background. The nuclear power plant was acquired by the US government and then leased to the city of Piqua.
Only two technicians are required to spend two days per year in the facility.
Data of the reactor blocks
The Piqua nuclear power plant had one block :
| Reactor block | Reactor type | net power |
gross power |
start of building | Network synchronization |
Commercialization of essential operation |
switching off processing |
|---|---|---|---|---|---|---|---|
| Piqua | OMRE | 12 MW | 12 MW | 01/01/1960 | 07/01/1963 | 11/01/1963 | 01/01/1966 |
Individual evidence
- ↑ PNPF (English)
- ↑ a b c EnergyStorm - Annual monitoring and surveillance report for Piqua Nuclear Power Facility, Piqua, Ohio ( Memento of the original from January 7, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (English)
- ↑ a b c d e Piqua - Nukeworker ( Memento of the original dated December 9, 2004 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (English)
- ↑ a b c d e f DOE Environmental Management (EM) - Piqua Nuclear Power Facility (English)
- ↑ a b c d NationMaster - Encyclopedia: Piqua Nuclear Generating Station ( Memento of the original from January 19, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (English)
- ↑ a b c Power Reactor Information System of the IAEA : "United States of America: Nuclear Power Reactors - Alphabetic" (English)
- ↑ a b c d e f http://www.osti.gov/scitech/biblio/4131637
- ↑ Community Site - Facts from Piqua (English)
- ↑ History of Piqua Ohio ( Memento of the original from December 16, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (English)
