Material testing reactors

The main purpose of this work is to test the system for both mechanical and analytical reliability. A systematic study has been carried out including measurements for timing parameters of the system and neutron flux at irradiation positions, and the application of this system to determining of Selenium in a number of biological reference materials for validation purpose.

8p trinhthamhodang1218 14-03-2021 12 2   Download

The design and testing of an irradiation rig using flux screen method for NTD-Si at the DNRR are necessary to have a better understanding and experience in NTD-Si application. The new irradiation rig using various screen materials (stainless steel, aluminum and light water) was designed, installed and tested in the core of DNRR.

8p trinhthamhodang1218 14-03-2021 9 1   Download

Research institutes and also industrial companies in Czech Republic are involved in High Temperature Gas Cooled Reactor (HTGR) program and activities related to the study of advanced materials and HTGR technologies. These activities are supported by EC (within international projects, e.g. FP7-ARCHER, ALLIANCE, GoFastR can be mentioned) and also by Technology Agency of Czech Republic.

7p christabelhuynh 30-05-2020 28 1   Download

In this paper, a traditional adjoint method is used to propagate ND uncertainty on reactivity and reactivity coefficients and estimate correlations between different states of the core. We show that neglecting those correlations induces a loss of information in the final uncertainty.

9p christabelhuynh 30-05-2020 8 0   Download

Mechanic solicitations induced by neutron and photon interactions have to be featured for components lifespan determination. TechnicAtome is in charge of both the design and building on behalf of CEA of the 100 MW Jules Horowitz Reactor (JHR). This modular Material Testing Reactor is under construction in southern France, with radioisotope production and material testing capabilities.

8p christabelhuynh 29-05-2020 9 0   Download

The aim of this paper is to describe how CESAR operates and how it can be used to help these facilities care for waste disposal, nuclear materials transport or basic safety cases. The test case will be based on the PHEBUS Facility located at CEA Cadarache.

10p christabelhuynh 29-05-2020 8 1   Download

This research investigates the synthesis of biogas from vegetable wastes through anaerobic digestion in batch reactors. The batch test was carried out for a period of 9 weeks, during which the volume of biogas produced from the reactor ad its methane content, was measured. A laboratory test with 2.5 L bio digester was operated in batch system for the study. The feed material for biogas was a mixture of vegetable wastes which include carrots, tomato, potato and cabbage. The biogas production of the period of the study decreased from a volume of 2015 ml to 235 ml in the ninth week.

6p trinhthamhodang1212 06-04-2020 11 1   Download

The potential of using anaerobic digestion for the treatment of poultry blood has been evaluated in batch assays at the laboratory scale and in a mesophilic semi-continuous reactor. The biodegradability test performed on residual poultry blood was carried out in spite of high inhibitory levels of acid intermediaries. The use of activated carbon as a way to prevent inhibitory conditions demonstrated the feasibility of attaining anaerobic digestion under extreme ammonium and acid conditions.

11p kequaidan1 16-11-2019 24 0   Download

To improve the accuracy and safety of irradiation tests in High flux Advanced Neutron Application ReactOr (HANARO), the nuclear energy deposition rate, which is called nuclear heating, was estimated for an irradiation capsule with an iridium sample in the irradiation hole in order. The gamma rays emitted from the radioisotopes (RIs) of the structural materials such as flow tubes of fuel assemblies and heavy water reflector tank were considered as radiation source.

7p minhxaminhyeu3 25-06-2019 28 1   Download

This book presents a comprehensive review of studies in nuclear reactors technology from authors across the globe.

350p cucdai_1 16-10-2012 89 15   Download