نتایج جستجو برای: pwr

تعداد نتایج: 945  

Journal: :Journal of Landscape Ecology 2023

Abstract Fragmentation impacts disconnecting protected areas in Gunungkidul Regency, namely Bunder Forest Park (BFP) and the Paliyan Wildlife Reserve (PWR). This also decreases carrying capacity PWR, degrading Long-Tailed Macaque (LTM) habitat. Therefore, this research aims to analyze landscape structure between Protected areas, habitat suitability of LTM determine connectivity potential as an ...

2005
Davide Roverso

This paper presents techniques derived from empirical modelling methods and especially designed to tackle the recognition of dynamic transients with the aim of detecting and diagnosing faults and anomalies in equipment and processes. Applications and results are also presented, covering BWR and PWR plants and spanning from component level diagnostic applications to sub-system and plant level di...

Journal: :Open journal of energy efficiency 2023

This paper introduces the simulation, and controls using Simulink of MATLAB for PCTRAN (Personal Computer Transient Analysis) power control system (PWR) type pressurized water reactor PWR WESTINGHOUSE AP1000. The controller model produces mathematical description in nonlinear relation form which is an important popular program used at most universities education. described by a block diagram th...

2013
M. Aghaie T. Nazari A. Zolfaghari A. Minuchehr A. Shirani

This work addresses applications of the classical harmony search (HS), improved harmony search (IHS) and the harmony search with differential mutation based pith adjustment (HSDM) to PWR core reloading pattern optimization problems. Proper loading pattern of fuel assemblies (FAs) depends on both neutronic and thermal–hydraulic aspects; obtaining optimal arrangement of fuel assemblies, FA, in a ...

An accurate description of the fluid flow and heat transfer within a Pressurized Water Reactor (PWR), for the safety analysis and reactor performance is always desirable. In this paper a mathematical model of the fundamental physical phenomena which are associated to a typical PWR is presented. The mathematical model governs the fluid dynamics in the reactor. Using commercial software CFX, a co...

2006
Pablo E. Araya Gómez

Two-dimensional simulations of steady natural convection and radiation heat transfer for a 14x14 pressurized water reactor (PWR) spent nuclear fuel assembly within a square basket tube of a typical transport package were conducted using a commercial computational fluid dynamics package. The assembly is composed of 176 heat generating fuel rods and 5 larger guide tubes. The maximum cladding temp...

Journal: :Ciencia y tecnologia de buques 2021

The naval industry has integrated the generation of energy through nuclear processes, due to large amount that is produced in these for example, ship NS OTTO HAHN, which used a propulsion plant with generated by reactor pressurized water (PWR), operated under fission process. Also, other examples are military ships and icebreakers. In order know contribution this type plants, work carries out m...

ژورنال: :پژوهش های فلسفی کلامی 2008
اسداله فلاحی لطف اله نبوی

قضایا و قواعد منطق موجهات، در جهان های ممکن، معتبرند اما قضایای منطق ربط، در جهان های منطقی، و قواعد آن، در وضعیت ها اعتبار دارند. روبرت مایر، در سال 1974، به کمک ادات های صدق و کذب ویلهم آکرمان، نظامی در منطق ربط طراحی کرد که قضایا و قواعد آن، هر دو، در وضعیت ها معتبر بودند و به این وسیله، عدم تقارن موجود در منطق ربط میان قضایا و قواعد را از میان برد. در این مقاله، با معرفی نوع جدیدی از ادات ه...

2006
Francisco Joailton de Lima Claudio Garcia

This text presents a block diagram proposal of protection system for a PWR nuclear power plant. It describes the plant operation, as well as it defines what a protection system is. Some of the main inherent definitions to protection systems are shown and the system operation is explained in a global form. The block diagram proposed for the protection system can be used as a project foundation f...

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