scholarly journals Analysis of the possibility for operating a floating nuclear power plant in conjunction with a desalination plantAnalysis of the possibility for operating a floating nuclear power plant in conjunction with a desalination plant

2021 ◽  
Vol 2 (396) ◽  
pp. 149-158
Author(s):  
I. Chesnokova ◽  
◽  
S. Verbitsky ◽  
E. Stambrovskaya ◽  
◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power Unit ◽  
Nuclear Power ◽  
Optimal Choice ◽  
Point Of View ◽  
Thermal Methods ◽  
Desalination Plant ◽  
Nuclear Power Unit ◽  
The Persian Gulf

Object and purpose of research. The article discusses in comparison the methods of desalination of seawater and their energy features from the point of view of the feasibility of including a desalination plant in the complex with a floating nuclear power unit. Materials and methods. Based on the analysis of various literary sources, a review of the main methods of nuclear desalination is made. The IAEA DEEP program was used to compare different desalination technologies. Main results. Based on the results of simulating nuclear desalination in the IAEA DEEP program, using the example of the Persian Gulf, preliminary recommendations were drawn up on the use of desalination methods in the joint operation of a desalination plant with a floating nuclear power unit. Conclusion. The integrated complex allows for desalination by both membrane and thermal methods. For the optimal choice of technology, it is necessary to specify the area of deployment and the relative position of the floating nuclear power unit and the desalination plant, and further search for a compromise based on more accurate calculations.

Application of PSO in the Optimization of Nuclear Power Unit’s Heat Regenerative System

2014 ◽  
Vol 986-987 ◽  
pp. 698-701
Author(s):  
Wen Feng Fu ◽  
Fe Li ◽  
Lan Xin Zhou
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power Unit ◽  
Nuclear Power ◽  
System Optimization ◽  
Search Performance ◽  
Original Design ◽  
Regenerative Heat ◽  
Economic Framework ◽  
Nuclear Power Unit

Based on theoretical deduction, according to the characteristics of nuclear power unit, a universal heat economic framework for PWR nuclear power plant heat regenerative system was established. And on this basis, the cycle thermal efficiency was chosen as the optimization goal, the extraction steam pressures were chosen as optimization variables, a universal nuclear power unit regenerative system optimization model was established. A 900 MW nuclear power unit was taken for example, it’s the first time that AWPSO was applied to optimize the regenerative heat system of nuclear power unit. The result shows that the convergence ability and search performance of PSO are superior to other methods and the original design scheme. A new and convenient design is provided for PWR nuclear power plant heat regenerative system in this paper.

scholarly journals Estimation of the efficiency of combining a npp with a hydrogen facility under conditions of safe use of hydrogen in a steam turbine cycle

2021 ◽  
Vol 23 (2) ◽  
pp. 56-69
Author(s):  
R. Z. Aminov ◽  
A. N. Bairamov
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power Unit ◽  
Nuclear Power ◽  
Peak Power ◽  
Live Steam ◽  
Feed Water ◽  
Current Period ◽  
Additional Heating ◽  
The Future

THE PURPOSE. System efficiency and competitiveness assess of a new scheme for combining a nuclear power plant with a hydrogen complex based on additional heating of feed water and superheating of live steam in front of the high-pressure cylinder of a steam turbine. METHODS. Basic laws of thermodynamics were applied when developing and substantiating a new scheme for combining a nuclear power plants (NPP) with a hydrogen facility; theoretical regularities were applied of heat engineering; basic regularity were applied of fatigue wear of power equipment and assessment of its working resourse; basic regularities were applied for the assessment of operating costs and net present value (NPV). RESULTS. A new scheme is presented of the combination of a nuclear power plant with a hydrogen facility and a description of its operating principle on the example of a two-circuit nuclear power plant with a VVER-1000 reactor and a C-1000-60 / 1500 turbine. The data are presented on an increase in the productivity of steam generators at nuclear power plants with additional heating of feed water in the range of 235-250 ° C from its nominal value of 230 ° C. The temperature was estimated of live steam superheat depending on the temperature of the additional heating of the feed water. The results are presented of the calculation of the generated peak power by the power unit and the efficiency of conversion of the night off-peak power of the NPP into peak power, as well as the efficiency of the power unit of the NPP depending on the temperature of additional heating of the feed water. Main regularities are given for taking into account the fatigue wear of the main equipment of the hydrogen facility, including the rotor of the NPP turbine in the conditions of the stress-cyclic operation. The results are presented of assessing the cost of peak electricity NPP in combination with a hydrogen facility in comparison with a pumped storage power plant (PSPP) both for the current period and for the future until 2035. CONCLUSION. Hydrogen facility efficiency and competitiveness depends significantly on the intensity of the use of the main equipment in the conditions of the intense-cyclic operation. The hydrogen facility will competitiveness noticeably increase in comparison with the PSPP in the future. Efficiency of the NPP power unit and NPV is highest when the feed water is heated to 235 ° C and superheating of live steam in front of the high-pressure cylinder of the C-1000-60/1500 turbine up to 470°C.The hydrogen facility competes with the PSPP with her specific capital investment at the level of 660 USD / kW, provided that the boosting capabilities of the turbine are used with live steam overheating at 300 ° C and additional heating of feed water to 235°C on the current period. The PSPP does not compete with the hydrogen facility both for the current period and in the future with her specific capital investment of $ 1,500 / kW and above.

Radiation Safety During the Construction of the «Sarcophagus» («Shelter» object) at the 4-th Unit of the Chernobyl Nuclear Power Plant in May-November 1986

ANRI ◽  
2021 ◽  
Vol 0 (4) ◽  
pp. 60-76
Author(s):  
Lev Belovodskiy ◽  
Aleksandr Panfilov
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power Unit ◽  
Nuclear Power ◽  
Radiation Safety ◽  
Chernobyl Nuclear Power Plant ◽  
Special Structure ◽  
Important Stage ◽  
Chernobyl Npp

This year marks the 35-th anniversary of the events related to the liquidation of the consequences of the accident at the Chernobyl nuclear power plant (Chernobyl NPP) and their most important stage - the closure of the destroyed 4-th power unit with a special structure, which was initially called the «Sarcophagus» (later the «Shelter» object). This article presents information about the period May-November 1986 in the aspect of radiation safety of the builders of this unique facility.

Corrosion at Nuclear Power Plant from Mössbauer Spectroscopy Point of View

2010 ◽  
Author(s):  
V. Slugeň ◽  
J. Lipka ◽  
J. Dekan ◽  
I. Tóth ◽  
I. Smieško ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Point Of View

Settlements of turbogenerator foundations in the first power unit of the Kura nuclear power plant

1982 ◽  
Vol 19 (3) ◽  
pp. 87-89
Author(s):  
V. I. Ryzhenkov ◽  
A. P. Dubyaga ◽  
V. N. Uvarkin ◽  
N. A. Ivanov
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Power Unit ◽  
Nuclear Power

Equipment Aging Management and Operational Lifetime Extension at the PAKS Nuclear Power Plant

2004 ◽  
Author(s):  
T. Katona ◽  
A. Ja´nosine´ Bi´ro´ ◽  
S. Ra´tkai ◽  
T. Pa´lfi ◽  
A. To´th
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Point Of View ◽  
Operational Lifetime ◽  
Periodic Safety ◽  
Main Components ◽  
License Renewal ◽  
Ageing Management ◽  
Lifetime Extension

The design life of the NPP PAKS VVER-440/213 Units is 30 years. The Paks Nuclear Power Plant strategy is to extend the operational lifetime of the plant and renew the operational license for 20 years over the designed and licensed lifetime. The feasibility of plant lifetime extension has been investigated. It has been found that a 20 years extension of operation is feasible from both technical and business point of view. The Licence Renewal regulation based mainly on USNRC approach taking into account the special features of the VVER-440/213 Units and the Periodic Safety Review (PSR) (every 10 years) requirements based on IAEA methods. At Paks NPP the systematic ageing management activities were started ten years ago. Basic results of plant assessment and aging management programs of the main components are discussed in the paper. Summary of the license renewal process and details of the main activities are reported.

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