Abdelfattah Abdelmaksoud Abdelkarim Ali <br/><br/>
Thermal hydraulic modeling of loss of flow transient without SCRAM in a typical MTR reactor /  
 نموذج رياضى لدراسه الاداء الهيدروحرارى لمفاعلات اختبار المواد عند تعرضها لحادثه فقدان السريان  دون اطفاء المفاعل  
Abdelfattah Abdelmaksoud Abdelkarim Ali ; Supervised Hany A.S.E. Khater , Salah El-Din ELMorshedy 
 - Cairo :   Abdelfattah Abdelmaksoud Abdelkarim Ali ,   2014 
 - 106 P. :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering 
<br/><br/> An accident analysis of the unprotected LOFA in a typical MTR reactor is conducted. The  flow rate is considered to decay exponentially with time constant of 25 s according to  experimental records. The new reduced flow G/Go= 0.2, 0.4, 0.6, 0.8, and complete pump  failure flow level were modeled. The flow instability ratio for the case of complete pump  failure is less than one, hence, inception of flow instability is predicted. In contrast, in cases  of G/G = 0.2, 0.4, 0.6, and 0.8 the flow instability ratio is more than one and consequently no exceed of design limits in term of thermal hydraulic instability and DNB is observed thus, stability is maintained throughout the transient and a new equilibrium state is ultimately established. However the clad corrosion resistance and water chemistry will exceed the design limit 
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<br/><br/><label>Subjects--Index Terms: </label>CFD and PARET MTR reactor Unprotected LOFA