scholarly journals PERFORMANCE ANALYSIS AND EFFICIENCY IMPROVEMENT OF BOILERA REVIEW

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
Satyam Purseth ◽  
Jayprakash Dansena ◽  
Mukesh Shyamkant Desai
Keyword(s):  
Power Plant ◽  
Energy Demand ◽  
Review Paper ◽  
Thermal Power ◽  
High Energy ◽  
Heat Energy ◽  
Chemical Energy ◽  
Efficiency Improvement ◽  
Boiler Efficiency ◽  
Different Types

The main objective of this paper is to find out the boiler efficiency calculation and method to improvement. The thermal industry is known as a major source of conventional energy in India. In the thermal power plant where chemical energy of the coal is converted into electricity. It is most demanding industry now days because of high energy demand. Boiler is the most important part for plant. Running the plant with maximum result we need high boiler efficiency. Calculating boiler efficiency as one of the most important types of performance measurement in any power plant. For calculation of Boiler efficiency basically we use Direct and Indirect method. It is a measure of how effectively chemical energy in fuel is converted into heat energy in steam going to the turbine. Finding boiler efficiency from this method from this method use for boiler efficiency, the data is collected from different department in plant like, Boiler Efficiency Department. Many researchers are find out the boiler efficiency of different plant and carried out their research for improvement of boiler efficiency. This review paper helpful to calculate the boiler efficiency and find out the different types of losses occurs in boiler. We also find that boiler efficiency is always somehow increase by implementing this method and useful for further research.

Field Conversion of a Low-Firing Frame 7B Gas Turbine Power Plant to Ultra-Low Emission Combustion

2015 ◽  
Author(s):  
Nicolas Demougeot ◽  
Jeffrey A. Benoit
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Energy Demand ◽  
Water Injection ◽  
Cost Benefit ◽  
High Energy ◽  
Nox Emissions ◽  
Environmental Controls ◽  
Low Emission ◽  
Technical Discussion

The search for power plant sustainability options continues as regulating agencies exert more stringent industrial gas turbine emission requirements on operators. Purchasing power for resale, de-commissioning current capabilities altogether and repowering by replacing or converting existing equipment to comply with emissions standards are economic-driven options contemplated by many mature gas turbine operators. NRG’s Gilbert power plant based in Milford, NJ began commercial operation in 1974 and is fitted with four (4) natural gas fired GE’s 7B gas turbine generators with two each exhausting to HRSG’s feeding one (1) steam turbine generator. The gas turbine units, originally configured with diffusion flame combustion systems with water injection, were each emitting 35 ppm NOx with the New Jersey High Energy Demand Day (HEED) regulatory mandate to reduce NOx emissions to sub 10 ppm by May 1st, 2015. Studies were conducted by the operator to evaluate the economic viability & installation of environmental controls to reduce NOx emissions. It was determined that installation of post-combustion environmental controls at the facility was both cost prohibitive and technically challenging, and would require a fundamental reconfiguration of the facility. Based on this economic analysis, the ultra-low emission combustion system conversion package was selected as the best cost-benefit solution. This technical paper will focus on the ultra low emissions technology and key features employed to achieve these low emissions, a description of the design challenges and solution to those, a summary of the customer considerations in down selecting options and an overview of the conversion scope. Finally, a technical discussion of the low emissions operational flexibility will be provided including performance results of the converted units.

scholarly journals Soot Blowing Optimization for Frequency in Economizers to Improve Boiler Performance in Coal-Fired Power Plant

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2901 ◽  
Author(s):  
Shi ◽  
Li ◽  
Wen ◽  
Cui ◽  
Pang ◽  
...  
Keyword(s):  
Power Plant ◽  
Optimization Model ◽  
Heated Surface ◽  
Thermal Power ◽  
Measurement Data ◽  
Heating Surface ◽  
Distributed Control System ◽  
Safe Operation ◽  
Measuring Point ◽  
Boiler Efficiency

Because of the present ineffective method of soot blowing on a boiler’s heating surface in a coal-fired power plant, and to improve the economic benefit of the boiler in the power plant, weigh the improvement of boiler efficiency and steam loss brought by soot blowing, and ensure the safe operation of the unit, an optimization model of soot blowing on the boiler’s heating surface is established. Taking the economizer of the 300 MW coal-fired power plant unit as the research object, the measurement data and basic thermodynamic calculation data of the Distributed Control System (DCS) of the thermal power plant are used to calculate the fouling rate of the heated surface in real time. By analyzing the multi-group fouling rate under the same working conditions, the incremental distribution of the same measuring point at different times is obtained, and the expectation is obtained according to the distribution curve. The state of heating of the heated surface at a time in the future is predicted by the known initial cleaning state. By analyzing the trend of the fouling rate and combining the soot blowing optimization model, a set of soot blowing optimization strategies are proposed. The method proposed in this manuscript can be applied to the guidance of boiler soot blowing operation.

Selection of Sensors for Heliostat of Concentrated Solar Thermal Tower Power Plant

2021 ◽  
Vol 12 (1) ◽  
pp. 41
Author(s):  
Kamran Mahboob ◽  
Qasim Awais ◽  
Awais Khan ◽  
Tabish Fawad ◽  
Momen Rasool ◽  
...  
Keyword(s):  
Power Plant ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Tracking System ◽  
Solar Thermal ◽  
Solar Photovoltaic ◽  
System A ◽  
The World ◽  
Different Types ◽  
Selection Of

As the energy demand of the world is rising, more and more efforts are being made to harness different forms of energy available. Current pollution due to fossil fuels has directed the world to shift to cleaner renewable energies, such as solar. Photovoltaic, as well as concentrated solar technologies, are developed to harness solar energy. The concentrated solar tower power plant is an emerging technology and is under development having vast areas of improvement. The efficiency of the concentrated solar tower power plant depends upon the accuracy of the tracking system of the heliostats placed all around the central tower of the plant. A closed-loop tracking system a feedback method is a need. In addition, to check the accuracy of the system, a calibration system is required. This system uses different types of sensors. In this study, an effort is made to enlist different types of sensors available and their use in the tracking system of the solar thermal tower power plant. In addition, different sensors are suggested that are best suited for calibration and correction purposes.

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