جرى في هذا البحث توصيف تغير خصائص استحراق حزمة الوقود للمفاعل 1150-PWR من أجل
قيم مختلفة للسموم المستحرقة في الحزمة (من حيث عدد قـضبان الوقـود المحتويـة علـى الـسموم
المستحرقة و النسبة الوزنية للماص في قضيب الوقود)، و قد جرى الاستدلال على تأثير كل مـن النـسبة
الوزنية للماص و عدد القضبان المحتوية على الماص في سلوك استحراق الحزمة، ثم اختيرت التركيبـة
المناسبة للوقود عند رفع التخصيب إلى %4.4 التي تمثلت باستخدام 18 قضيباً بوقود و مـاص (وقـود
بتخصيب %7.3 و ماص بنسبة وزنية %0.4 غير مخصب) و بقية القضبان تحتوي وقوداً مخصباً %4.4
فقط.
استخدم في هذا العمل الكود GETERA لإجراء حسابات الاستحراق للوقود، و قورنت النتائج ببعض
النتائج التجريبية لنماذج مشابهة.
This analysis deals with the evaluation of the fuel burnup behavior for PWR-1150
reactor assembly by modifying with changing both, the number of fuel rod which have
burnable absorber (BA) and the percent weight of BA in each rod. The achieved result
presented in this paper enables determine the suitable structure of reactor assembly
when fuel enrichment equal to 4.4%.
The GETERA 90 code was used to perform assembly burnup calculation. For
validation purposes they are compared with selected experimental data for similar
reactor.
References used
Pavlov, V. I., Sidorenko, V. D., Pozdnyakov, N. E. (1992). "Effectiveness Of Using Burnable Absorbers In A VVER-1000", Plenum Publishing Corporation, Vol. 73, No. 6, pp. 466-470
Duderstadt, J. J., Hamilton, L. J. (1976). "Nuclear Reactor Analysis", Department of Nuclear Engineering, The University of Michigan, DUD 621. 4832
Jiang, sh. (2009). "Nuclear Fuel Management Optimization Using Estimation of Distribution Algorithms", PhD Thesis, Imperial College London ,University of London, UK
In this study, a simulation of the MTR-22MW reactor and a study
of standard and mixed fuel combustion using the Codes GETERA
and MCNP5.
The Results of the simulation showed that the operation time of the
reactor in the case of standard fuel is 274 days and if the use of
mixed fuel is 135 days.
Most of the fish stocks in the world are threatened by overfishing
and/or degraded environmental conditions, stock assessment of
marine resources is therefore worldwide recognized as a major
matter. This study aims at highlighting the analytical models used
in the stocks assessment, which depend on the cohort analysis using
information on the length based method which used when only
length composition data for fishery.
A protection Method for the primary loops metals of nuclear power plant
from corrosion was investigated. Hydrogen molecules were added to the
primary circuit to eliminate oxygen molecules produced by radiolysis of coolant
at the reactor core. The
The research was carried out on the farm of Abi Jarash affiliated to the Faculty of Agriculture in Damascus during the 2012 agricultural season for the spring and fall seasons. The experiment was designed in a completely randomized sector method with the aim of evaluating the response of the two potato cultivars (Spunta and Daraga) to water stress.
Hydrocarbon burning nowadays has a great part of the required energy consumed in the world, mainly in the transport vehicle engines, which seems to be the main source in the future. This urges us develop the fuel burning in different internal combust