scholarly journals How students of primary school understand large scale energy systems: The case of thermal power plant

2021 ◽  
Vol 11 (1) ◽  
pp. 129
Author(s):  
Niki Sissamperi ◽  
Dimitris Koliopoulos
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Teaching And Learning ◽  
Large Scale ◽  
Elementary Science ◽  
Science Curriculum ◽  
Thermal Power ◽  
Energy Systems ◽  
Constructivist Teaching ◽  
The Impact

The aim of this study is to investigate the impact of a constructivist teaching intervention on 6th grade students' cognitive progress on large-scale Energy Generation Systems (EGS), specifically on a Thermal Power Plant (TPP). This intervention was designed according to the constructivist approach for teaching and learning science, and it can be described as an autonomous teaching module appropriate for an elementary science curriculum. With the application of this intervention in real classroom settings, the majority of students were able to construct sufficient technological and scientific knowledge in order to describe and explain the operation of a TPP in qualitative energy terms, as our research data ascertained.

scholarly journals CONSTRUCTION OF THE LARGE-SCALE JETTY AT MAIZURU THERMAL POWER PLANT

2002 ◽  
Vol 18 ◽  
pp. 641-646
Author(s):  
Masashi TERADA ◽  
Toshiaki NAKAMURA ◽  
Yasushi OOMASA ◽  
Keiichi OOMURA ◽  
Nobuhiro AKISATO
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Large Scale ◽  
Thermal Power

Assessing the impact of primary measures for NOx reduction on the thermal power plant steam boiler

2015 ◽  
Vol 78 ◽  
pp. 397-409 ◽  
Author(s):  
Goran Stupar ◽  
Dragan Tucaković ◽  
Titoslav Živanović ◽  
Srdjan Belošević
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Nox Reduction ◽  
Steam Boiler ◽  
The Impact

scholarly journals Development of methodology and measures to ensure the reliability of energy systems equipment

2022 ◽  
Vol 23 (5) ◽  
pp. 46-55
Author(s):  
M. M. Sultanov
Keyword(s):  
Experimental Data ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Energy Systems ◽  
Design Calculation ◽  
Power Equipment ◽  
Experimental Data Processing ◽  
Control Actions ◽  
Plant Power

THE PURPOSE: The article presents the results of the development of a methodology for the design calculation of reliability and changes in the level of reliability of energy systems, taking into account the influence of control actions based on statistical methods of collection, analysis and models of experimental data processing.METHODS: The system analysis and generalization of experimental data on technological failures of the main equipment of thermal power plants were used in the calculation assessment.RESULTS: The objective function of controlling the reliability parameters of the thermal power plant power equipment is proposed. The approbation of the presented objective control function was performed, which showed the adequacy of the results obtained to assess the reliability of the main nodes and elements of the TPP power equipment.CONCLUSION: The results of the conducted studies show that when determining reliability indicators, it is necessary to take into account the actual technical condition of individual elements and resource-determining functional units of thermal power plant power equipment. The results obtained can be used to develop a methodology for evaluating control actions for calculating the output control parameters and a mathematical model for changing the output characteristics of TPP steam turbines in terms of heat and electric energy generation, as well as at the stage of developing design documentation for the creation of structural elements and practical recommendations in order to extend the service life of power equipment generating systems based on digital technologies.

scholarly journals Comparison of sperm parameters and testis histological structure in lake frog (Pelophylax ridibundus) from areas with different level of anthropogenic pollution

2021 ◽  
pp. 10-13
Author(s):  
Iryna Sluchyk ◽  
Bohdan Grytsulyak ◽  
Oksana Glodan ◽  
Iryna Ivasiuk ◽  
Alexandra Khallo
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Sperm Concentration ◽  
Anthropogenic Pollution ◽  
Sperm Parameters ◽  
Seminiferous Tubules ◽  
Histological Structure ◽  
Pelophylax Ridibundus ◽  
The Impact

The aim. The aim of the work was to study the indicators of spermatogenesis in the lake frog, Pelophylax ridibundus (Pallas, 1771), in the zone of the influence of emissions from the Burshtyn Thermal Power Plant (TPP). Materials and methods. Urinal sperm and testes samples were taken from male frogs under conditions of anthropogenic pollution (Burshtyn industrial area). Such parameters as sperm concentration in ejaculate, the number of live spermatozoa, total amount of actively mobile forms, and percentage of spermatozoa with progressive motion were determined by calculations in the hemocytometer. Testis samples were processed for routine histological method. The diameter of seminiferous tubules and histological abnormalities were studied. Results. Studies have revealed that near the Burshtyn TPP industrial site, the sperm concentration in the sperm sample and the total number of motile spermatozoa of the lake frogs significantly decreased. The number of dead spermatozoa increases. Amphibians from polluted sites had histological abnormalities in testes such as dilation of the seminiferous tubules with sparse sperm. At the same time, the diameter of the seminiferous tubules in the animals from polluted site significantly decreased. Conclusions. The impact of the emissions from the Burshtyn thermal power plant has an expressive reprotoxic effect that is manifested by depressive changes in testes tissue and gametes. The reproductive system of the lake frog is quite sensitive to environmental pollution. Sperm parameters and histological changes in testes are informative biomarkers and can be used for bioindication of technogenically transformed territories

scholarly journals An Optimization Model for Tramp Ship Scheduling considering Time Window and Seaport Operation Delay Factors

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Ang Yang ◽  
Yu Cao ◽  
Kang Chen ◽  
Qingcheng Zeng ◽  
Zigen Chen
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Large Scale ◽  
Time Window ◽  
Programming Model ◽  
Thermal Power ◽  
Scale Model ◽  
Mixed Integer ◽  
Ship Scheduling ◽  
Operation Cost

The quantity of electrical coal transported through the tramp shipping network is increasing due to the high demands. This trend has increased the scheduling difficulty combined with the underdevelopment of the private thermal power plant port. The high coal consumption and low port storage capacity requires the scheduling of the tramp ship to be on a strict time window to ensure the continuous operation of the thermal power plant. The low port unloading capacity often leads to the port congestion and delay of the unloading operation. This paper develops a mixed-integer-programming model for the optimization of the tramp ship scheduling to reduce the total operation cost, including the transportation cost and the unloading waiting cost, and the branch-and-price algorithm is adopted to solve this large-scale model. The model and algorithm are tested with historical operation data from the thermal power plant in the southern coastal areas of China. The optimized scheme significantly reduces the total operation cost by reducing the unloading waiting time and the number of active vessels in certain periods. The results also demonstrate the algorithm improvement in the aspects of the optimization quality and efficiency comparing with the heuristic solution.

New Technologies

Energy ◽  
2012 ◽  
Author(s):  
José Goldemberg
Keyword(s):  
Power Plant ◽  
Thermal Energy ◽  
Thermal Power Plant ◽  
New Technologies ◽  
Waste Heat ◽  
Thermal Power ◽  
Energy Systems ◽  
Combined Heat And Power ◽  
Simultaneous Production ◽  
Burning Coal

What is cogeneration? Cogeneration or CHP (combined heat and power) devices allow the simultaneous production of electric and thermal energy in energy systems. They typically recover and use waste heat from a thermal power plant burning coal. These systems are widely used in Eastern...

Sign in / Sign up

Export Citation Format

Share Document