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Autore principale:	Ana Rosa Baliza
Natura:	Artículo científico
Lingua:	en
Pubblicazione:	Sociedade Brasileira de Proteção Radiológica - SBPR 2020
Soggetti:	Biología in ASME Code Angra 1 NPP License Renewal service inspection
Accesso online:	https://www.redalyc.org/articulo.oa?id=722280924010
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_version_	1866582471935524864
author	Ana Rosa Baliza
author_facet	Ana Rosa Baliza
contents	Angra 1 NPP in-service inspection and in-service testing programs for operating license and long-term operation Ana Rosa Baliza Youssef Morghi Amir Zacarias Mesquita Biología in ASME Code Angra 1 NPP License Renewal service inspection The in-service inspection program of the Angra 1 plant is updated every 10 years, according to applicable standards - designer (American Westinghouse project based on NRC requirements) and CNEN. NRC approves the use of ASME Section XI (In-service Inspection of Nuclear Power Plant Components). To provide this assurance for those components that are subject to the requirements of the ASME Boiler and Pressure Vessel Code presents as requirements a set of rules has been formulated to provide assurance that the functional requirements of the components are available when required. The rules have been arranged to provide appropriate levels of assurance according to the importance of the component in its relationship to plant safety. The classifications that are established during design and manufacturing have been adopted to provide the levels of importance for the components. Nuclear power plants (NPP) have operation license for 40 years. Angra 1 operation license will complete 40 years in 2024. But, according to international standard an NPP can renewal the license for more 20 years. Brazilian standard does not have requirements for license renewal. So, CNEN had prepared two technical notes for License Renewal and Long-term operation for NPP in Brazil - CNEN NTCGRC-007/18 and NT-CGRC-008/18. Angra 1 had already started the Renewal License and Long-term Operation project and ISI program will need to be on the Aging Management Program form, that require more robust trend analyzes, corrective and preventive actions and others attributes. The main purpose of this article is to show the ASME section XI subsections that are important for the License Renewal and Long-term Operation for Angra 1. 2020 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280924010 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3A Vol.8
format	Artículo científico
id	redalyc_722280924010
language	en
publishDate	2020
publisher	Sociedade Brasileira de Proteção Radiológica - SBPR
spellingShingle	Angra 1 NPP in-service inspection and in-service testing programs for operating license and long-term operation Ana Rosa Baliza Biología in ASME Code Angra 1 NPP License Renewal service inspection Angra 1 NPP in-service inspection and in-service testing programs for operating license and long-term operation Ana Rosa Baliza Youssef Morghi Amir Zacarias Mesquita Biología in ASME Code Angra 1 NPP License Renewal service inspection The in-service inspection program of the Angra 1 plant is updated every 10 years, according to applicable standards - designer (American Westinghouse project based on NRC requirements) and CNEN. NRC approves the use of ASME Section XI (In-service Inspection of Nuclear Power Plant Components). To provide this assurance for those components that are subject to the requirements of the ASME Boiler and Pressure Vessel Code presents as requirements a set of rules has been formulated to provide assurance that the functional requirements of the components are available when required. The rules have been arranged to provide appropriate levels of assurance according to the importance of the component in its relationship to plant safety. The classifications that are established during design and manufacturing have been adopted to provide the levels of importance for the components. Nuclear power plants (NPP) have operation license for 40 years. Angra 1 operation license will complete 40 years in 2024. But, according to international standard an NPP can renewal the license for more 20 years. Brazilian standard does not have requirements for license renewal. So, CNEN had prepared two technical notes for License Renewal and Long-term operation for NPP in Brazil - CNEN NTCGRC-007/18 and NT-CGRC-008/18. Angra 1 had already started the Renewal License and Long-term Operation project and ISI program will need to be on the Aging Management Program form, that require more robust trend analyzes, corrective and preventive actions and others attributes. The main purpose of this article is to show the ASME section XI subsections that are important for the License Renewal and Long-term Operation for Angra 1. 2020 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280924010 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3A Vol.8
title	Angra 1 NPP in-service inspection and in-service testing programs for operating license and long-term operation
topic	Biología in ASME Code Angra 1 NPP License Renewal service inspection
url	https://www.redalyc.org/articulo.oa?id=722280924010

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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Environment & details:

Environment & details: