Control of CO2 emission through enhancing energy efficiency of auxiliary power equipment in thermal power plant

Abstract In this article, energy, exergy, and environmental (3E) analysis of a 400 MW thermal power plant is investigated. First, the components of the power plant are examined in terms of energy consumption, and subsequently the energy losses, exergy destruction, and exergetic efficiency are obtained. It is shown that the highest energy losses are in the closed feedwater heaters Nos. 1 and 5 and the boiler with amounts of 7.6 × 10 J/s and 6.5 × 107 J/s, respectively. The highest exergy destruction occurs in the boiler and amounts to 4.13 × 108 J/s. The highest exergetic efficiency is 0.98 and is associated with the closed feedwater heaters Nos. 4 and 8. It is observed that the exergetic efficiency and exergy destruction in the boiler are the primarily affected by changes in the environmental temperature. Furthermore, by increasing the main pressure in the turbine, the load on the power plant is increased, and increasing the condenser pressure reduces the load on the power plant. In an environmental analysis, the production of pollutants such as SO2 production and CO2 emission has been investigated.

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Predicting the Energy Efficiency of Thermal Power Plant

2020 3rd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET) ◽

10.1109/icomet48670.2020.9073874 ◽

2020 ◽

Author(s):

Ghulam Qadir ◽

Dr. Irfan Bhacho ◽

Dr. Naeem Ahmed Mahoto

Keyword(s):

Energy Efficiency ◽

Power Plant ◽

Thermal Power Plant ◽

Thermal Power

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

Proceedings of the higher educational institutions ENERGY SECTOR PROBLEMS ◽

10.30724/1998-9903-2021-23-5-46-55 ◽

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.

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Optimization of the Cold-End System of the 1000MW Ultra-Supercritical Units by VB

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.694-697.778 ◽

2013 ◽

Vol 694-697 ◽

pp. 778-781 ◽

Cited By ~ 2

Author(s):

Li Kun Zheng ◽

Chang Chen ◽

Dan Mei Xie ◽

Heng Liang Zhang

Keyword(s):

Power Plant ◽

Steam Turbine ◽

Thermal Power Plant ◽

Thermal Power ◽

Operating Mode ◽

Direct Impact ◽

Unit Operation ◽

Analysis Method ◽

Optimization Analysis ◽

Auxiliary Power

The cold-end system of steam turbine is an important auxiliary system in thermal power plant, its operating mode has a direct impact on the output of the unit and auxiliary power. This paper uses an optimization analysis method to calculate the cold-end system of a 1000MW ultra-supercritical(USC) unit, and establishes a cold-end optimization system by using VB6.0 for a domestic ultra-supercritical unit, which provides an online guide for the operator by calculating the condenser. The results show that this system can provide some guidance for unit operation.

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