Modern Coal-Fired Power Units for Ultra-Supercritical Steam Conditions (Review)

Сомова, Е. В.; Тугов, А. Н.; Тумановский, А. Г.

doi:10.1134/s0040601523020064

Cited by 10 publications

(2 citation statements)

References 7 publications

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“…Additionally, turbines and generators also contribute significantly to CO 2 emissions (4.05 × 10 -2 kg CO 2 eq/kWh). Within this unit, coal combustion generates steam to power the turbine and generator (Somova et al, 2023). The potential impact value for acid rain is 8.21 × 10 -3 kg SO 2 eq/ kWh, originating from boilers, turbines, and generators.…”

Section: Life Cycle Impact Assessment Resultsmentioning

confidence: 99%

Environmental Impact Analysis in 3x10 MW Coal Fired Power Plant Through Life Cycle Assessment

Triatmojo,

Hadinata,

Sari

2024

Ecol. Eng. Environ. Technol.

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The primary energy source in developing countries, including Indonesia, is fossil energy. Therefore, evaluating the environmental impact of coal-fired steam power plants is crucial, but limited. Comprehensive scientific analysis is required to develop appropriate alternative measures. This research aims to analyze the life cycle impact of the coal power plant at the gate, including the coal yard, coal crusher, boiler, turbine, and generator, with the functional unit of 1 kWh of electricity produced. This research provides clear recommendations for mitigating emissions from the main contributing units. The analysis reveals the highest impact in the climate change potential category (1.40 × 10 -1 kg CO 2 eq/kWh), while the smallest impact was recorded in the Eutrophication potential category (7.55 × 10 -4 kg PO 4 eq/kWh), with no impact on ozone depletion in the stratosphere. The operation of boiler and generator units (gate hotspots) are the main contributors to climate change impacts, including carbon dioxide (9.25 × 10 -2 kg CO 2 ), sulfur dioxide (8.21 × 10 -3 kg SO 2 ), and nitrogen dioxide (7.55 × 10 -4 kg PO 4 ). Alternative programs that may be implemented to reduce emissions include co-firing and installation of flue gas desulfurization and low NO x burner. The findings of this research provide guidance for developing a policy framework to promote more environmentally friendly coal power plants, thereby achieving greater energy sustainability.

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Section: Life Cycle Impact Assessment Resultsmentioning

confidence: 99%

Environmental Impact Analysis in 3x10 MW Coal Fired Power Plant Through Life Cycle Assessment

Triatmojo,

Hadinata,

Sari

2024

Ecol. Eng. Environ. Technol.

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“…An Ultra-Supercritical (USC) once-through type boiler has been widely used in the global thermal power plant industry for decades [9,14,15]. The USC boiler maintains the steam pressure and temperature above the critical point at a maximum of 30 MPa and 600 • C, respectively.…”

Section: Mw Ultra-supercritical Once-through Power Plantmentioning

confidence: 99%

Supplementary Control of Conventional Coordinated Control for 1000 MW Ultra-Supercritical Thermal Power Plant Using One-Step Ahead Control

Choi,

Moon

et al. 2023

Energies

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The intermittence of renewable energy sources increases the importance of the effective load-tracking ability of power plants. Coordinated control between boiler and turbine systems is the uppermost layer of a thermal power plant control to follow the load demand. In this paper, a supplementary controller is proposed based on the One-Step Ahead strategy for coordinated control of thermal power plants. After a plant model is developed offline from a step response test, the optimized control of the One-Step Ahead strategy is applied to the boiler feed-forward (BFF) signal to control the electric power output and the main steam pressure simultaneously. Simulation with a 1000 MW ultra-supercritical (USC) once-through type power plant is performed. The results show that the error of Mega-Watt Output (MWO) was reduced to 78~95%, and settling time was reduced to 64~79% from conventional coordinated control by adding the proposed supplementary controller.

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A review on energy efficiency techniques used in machining for combined generation units

Ocak,

Can

2024

Int J Interact Des Manuf

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Modern Coal-Fired Power Units for Ultra-Supercritical Steam Conditions (Review)

Cited by 10 publications

References 7 publications

Environmental Impact Analysis in 3x10 MW Coal Fired Power Plant Through Life Cycle Assessment

Environmental Impact Analysis in 3x10 MW Coal Fired Power Plant Through Life Cycle Assessment

Supplementary Control of Conventional Coordinated Control for 1000 MW Ultra-Supercritical Thermal Power Plant Using One-Step Ahead Control

A review on energy efficiency techniques used in machining for combined generation units

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