Different reactor conditions

Ebook "Fluidized-bed reactors: Processes and operating conditions" focuses on the design and operation of fluidized beds in many different industrial processes, emphasizing the rationale for choosing fluidized beds for each particular process. The book starts with a brief history of fluidization from its inception in the 1940’s. The authors present both the fluid dynamics of gas-solid fluidized beds and the extensive experimental studies of operating systems and they set them in the context of operating processes that use fluid-bed reactors.

214p tudohanhtau1006 29-03-2024 3 1   Download

This paper presents an investigation of appropriate irradiation conditions for MoO3 wire with porous structure in Dalat Nuclear Research Reactor. Theoretical calculation of irradiation time was obtained based on neutron flux distribution at different channels and locations.

7p vicedric 08-02-2023 6 4   Download

This paper presents a model development of the Dalat Nuclear Research Reactor (DNRR) loaded with low enriched uranium (LEU) fuel using the Serpent 2 Monte Carlo code. The purpose is to prepare the DNRR Serpent 2 model for performing fuel burnup calculations of the DNRR as well as for generating multi-group neutron cross sections to be further used in the kinetics calculations of the DNRR with a 3D reactor kinetics code.

9p trinhthamhodang1218 14-03-2021 5 1   Download

In this paper, we present a numerical analysis of the effect of different heat transfer correlations on the prediction of the cladding wall temperature in a supercritical water reactor at nominal operating conditions. The neutronics process with temperature feedback effects, the heat transfer in the fuel rod, and the thermal-hydraulics in the core were simulated with a three-pass core design.

11p christabelhuynh 30-05-2020 19 1   Download

The present investigation was carried out in Renewable Energy Laboratory of the Department of Renewable and Bio Energy Engineering, College of Agriculture Engineering & Technology, CCS Haryana Agriculture University, Hisar. Biogas production was recorded for 70 days (ten weeks) in batch type digestion. Anaerobic digestion of fresh cattle dung (CD) and paddy straw (PS) in different ratio was carried out under batch system. Paddy straw was mixed with cattle dung in different percentage 5%, 7%, 15%, 22.5% and one control. Methane content in all the reactors varied between 60-62%.

8p trinhthamhodang3 12-02-2020 26 0   Download

In the current investigation, the anti-biofilm potential of Argemone mexicana and Calotropis gigantea against 11 clinical isolates viz Escherichia coli, Pseudomonas aeruginosa, Enterococcus, Enterobacter aerogenes, Klebsiella pneumoniae, Staphylococcus aureus, Proteus vulgaris, Proteus mirabilis, Citrobacter, Serratia marcescens and Staphylococcus epidermidis were tested. The phytochemicals extracted in different solvents were analysed for their antibiofilm ability.

10p nguaconbaynhay1 04-12-2019 32 1   Download

A phase one design of a new free energy nano reactor is presented. The design is based on a basically topological interpretation of the Casimir effect as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. In particular we view dark energy, Hawking negative energy, Unruh temperature and zero point vacuum energy as being different sides of the same multi-dimensional coin.

12p mentospurefresh 29-11-2019 30 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

In this study, the alkaline solutions (NaOH) with concentrations from 1M to 18M, red mud (RM) and silica fume (SF) were used as reactors in geopolymer reactions. RM contains 7.40% SiO2 and 13.65% Al2 O3 and SF has 94.50% SiO2 , but only the active oxides can participate in the geopolymer reactions. The activity of the oxides was investigated by determining the compressive strength of the samples under different curing conditions.

8p caygaocaolon1 13-11-2019 18 2   Download

In the PWR pressure water reactor (PWR), stainless steel is used in many important parts in both primary and secondary water circuits. There are not enough necessary condition to experiment in extremly conditons of nuclear reactor, such as high temperature, high pressure in radiation environment in Vietnam.

9p vineptune2711 04-11-2019 19 0   Download

The fatigue crack growth behavior of Type 347 (S347) and Type 347N (S347N) stainless steel was evaluated under the operating conditions of a pressurized water reactor (PWR). These two materials showed different fatigue crack growth rates (FCGRs) according to the changes in dissolved oxygen content and frequency. Under the simulated PWR conditions for normal operation, the FCGR of S347N was lower than that of S347 and insensitive to the changes in PWR water conditions.

8p minhxaminhyeu4 26-06-2019 11 1   Download

The purpose of this paper is to study the source term behavior after severe accidents by using a semikinetic model for simulation and calculation of in-containment activity. The reactor containment specification and the safety features of the containment under different accident conditions play a great role in evaluating the in-containment activity.

13p minhxaminhyeu3 12-06-2019 14 0   Download

This paper presents the drop performance test of the control rod assembly which is one of the main components strongly related to the safety of the prototype generation IV sodium-cooled fast reactor. To investigate the drop performance, a real-sized control rod assembly that was recently modified based on the drop analysis results was newly fabricated, and several free drop tests under different flow rate conditions were carried out.

8p minhxaminhyeu3 12-06-2019 22 0   Download

The present simulation results obtained using the two different outflow boundary conditions were discussed through a comparison with the predictions using a simple nonflashing model neglecting the effects of phase change. In addition, the applicability of each of the non-flashing water discharge and saturated water flashing models for the confirmatory assessments of new SG designs was examined.

11p minhxaminhyeu3 25-06-2019 16 0   Download