{'fraction_non_alphanumeric': 0.0184645286686103, 'fraction_numerical': 0.0, 'mean_word_length': 5.130952380952381, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
To estimate reliability of hydroaccumulator system of nuclear power plants and improve its design and reliability

There are around twenty branches in a Nuclear Power Plant that operate to maintain the plant and one of the most important branches of them is ‘Safety and Reliability’. Approximately forty percent of the investment is paid to ensure the safety and reliability of the plant. Goal of this research work is to estimate reliability of a mechanical system which is chosen as Hydroaccumulator System of VVER type reactor. Getting the reliability, we will be trying to improve the system and enhance its reliability. To do so, firstly, reliability is calculated from a ‘prototype reactor’s’ hot loop which is located at Obninsk Institute for Nuclear Power Engineering (INPE). Thus, calculations were done and its applications being known, then finally these formulas and experiences are being used to calculate and improve the Hydroaccumulator System’s design along with its reliability to increase the safety of the NPP.