Non-Destructive Determination of Reactor Fuel Element Burnup by Measurement of Fission Neutrons

Determination ofresearch reactor fuel burnup

Modelling of Fission Gas Behaviour in High Burnup Nuclear Fuel

The safe and economic operation of nuclear power plants (NPPs) requires that the behaviour and performance of the fuel can be calculated reliably over its expected lifetime. This requires highly developed codes that treat the nuclear fuel in a general manner and which take into account the large number of in uences on fuel behaviour, e.g. thermal, mechanical, chemical, etc. Although many mature...

Recovery and Restructuring induced by Fission Energy Ions in High Burnup Nuclear Fuel

In light water commercial reactors, extensive change of grain structure was found at high burnup ceramic fuels. The mechanism is driven by bombardment of fission energy fragments and studies were conducted by combining accelerator based experiments and computer science. Specimen of CeO2 was used as simulation material of fuel ceramics. With swift heavy ion (Xe) irradiation on CeO2, with 210 MeV...

Determination of the Transuranic Elements Inventory in High Burnup Pwr Spent Fuel Samples by Alpha Spectrometry

Determination of transuranic elements such as U, Pu, Np, Am and Cm in spent nuclear fuels is of importance for a fuel characterization, evaluation of a burnup credit, and burnup determination of spent nuclear fuels. Additionally, the exact amount of the actinide elements, as the major elements of a source term, of the spent nuclear fuels is also used for a code verification that predicts the am...

بوزدایی از ‏‎fuel oil deodorization of fuel oil‎‏

مطالعات و بررسی های انجام گرفته نشان می دهد ترکیبات بودار موجود در ‏‎fuel oil‎‏ عمدتا ترکیبات سولفوردار سخت مثل تیوفن، دی متیل بنزوتیوفن و ... بوده و روشهای بوزدایی همچون استخراج با حلالهای اسیدی و بازی ، رقیق کاری با گازولین ، ماسکینگ با بوتیل استات نتایج چندان مطلوبی در بوزدایی از آن نشان نمی دهند.همچنین روش جذب سطحی برای بوزدایی ‏‎fuel oil‎‏ تنها با استفاده از جاذب هایی همچون بنتونیت و توفیت...