Energy and Exergy Analysis of a 348.5 MW Steam Power Plant

Mitrović, Darko; Živković, Dragoljub; Laković, Mirjana

doi:10.1080/15567030903097012

Cited by 42 publications

(18 citation statements)

References 10 publications

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“…For the simulation of the power plant cold end operation, the simulation model developed by authors and described in [3,14,15] was applied. This model provided modular structure so that a plant model could be quickly adapted to represent various power plant configurations.…”

Section: The Thermodynamic Model Of Reference Of the Chosen Power Plantmentioning

confidence: 99%

Analysis of the evaporative towers cooling system of a coal-fired power plant

Laković

Banjac

2012

THERM SCI

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The paper presents a theoretical analysis of the cooling system of a 110 MW coal-fired power plant located in central Serbia, where eight evaporative towers cool down the plant. An updated research on the evaporative tower cooling system has been carried out to show the theoretical analysis of the tower heat and mass balance, taking into account the sensible and latent heat exchanged during the processes which occur inside these towers. Power plants which are using wet cooling towers for cooling condenser cooling water have higher design temperature of cooling water, thus the designed condensing pressure is higher compared to plants with a once-through cooling system. Daily and seasonal changes further deteriorate energy efficiency of these plants, so it can be concluded that these plants have up to 5% less efficiency compared to systems with once-through cooling. The whole analysis permitted to evaluate the optimal conditions, as far as the operation of the towers is concerned, and to suggest an improvement of the plant. Since plant energy efficiency improvement has become a quite common issue today, the evaluation of the cooling system operation was conducted under the hypothesis of an increase in the plant overall energy efficiency due to low cost improvement in cooling tower system

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Section: The Thermodynamic Model Of Reference Of the Chosen Power Plantmentioning

confidence: 99%

Analysis of the evaporative towers cooling system of a coal-fired power plant

Laković

Banjac

2012

THERM SCI

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“…The general definition of exergy efficiency for a control volume, system or a plant can be found in [76] and is expressed by the equation:…”

Section: General Equations For Energy and Exergy Analysesmentioning

confidence: 99%

Energy and Exergy Analyses of Forced Draft Fan for Marine Steam Propulsion System during Load Change

Mrzljak

Blecich

Anđelić

et al. 2019

JMSE

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A forced draft fan, used for the supply of combustion air into the steam generator of the conventional liquefied natural gas (LNG) carrier was analyzed from the aspect of energy and exergy. The power delivered from the induction motor to the fan was calculated using the manufacturer’s data. The most significant impact on the fan energy power losses is from the air temperature difference between the fan outlet and inlet. The fan energy power losses are inversely proportional to the fan energy efficiency, and the values are between 19.9% and 63.4%, for the entire range of observed steam system loads. The fan exergy destruction depends primarily on the driving power and on the air mass flow rate. At higher loads, an important influence on the fan exergy destruction is from the air pressure at the fan outlet. The exergy efficiency change of the analyzed fan, for the range of observed steam system loads, is directly proportional to the rate of change in the air mass flow, whereas the obtained values of exergy efficiency are between 5.10% and 53.93%. The impact of ambient temperature on the fan exergy destruction and exergy efficiency exhibits is different than in most other steam system components. A change in ambient temperature of 10 °C causes a change in the exergy efficiency of the forced draft fan less than 0.5% in the entire range of observed steam loads.

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“…Economic analysis Discoveries and achievements [199] 660 • • ○ Linking of artificial neural network and genetic algorithm was employed for optimizing power plant thermodynamically. [200] 348.5 • • ○ The highest amount of energy losses and exergy destruction occurred in condenser and boiler respectively.…”

Section: Exergy Analysismentioning

confidence: 99%

Thermodynamic and economic analysis of performance evaluation of all the thermal power plants: A review

Ahmadi

Nazari

Sadeghzadeh

et al. 2018

Energy Science & Engineering

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Surging in energy demand makes it necessary to improve performance of plant equipment and optimize operation of thermal power plants. Inasmuch as thermal power plants depend on fossil fuels, their optimization can be challenging due to the environmental issues which must be considered. Nowadays, the vast majority of power plants are designed based on energetic performance obtained from first law of thermodynamic. In some cases, energy balance of a system is not appropriate tool to diagnose malfunctions of the system. Exergy analysis is a powerful method for determining the losses existing in a system. Since exergy analysis can evaluate quality of the energy, it enables designers to make intricate thermodynamic systems operates more efficiently. These days, power plant optimization based on economic criteria is a critical problem because of their complex structure. In this study, a comprehensive analysis including energy, exergy, economic (3‐E) analyses, and their applications related to various thermal power plants are reviewed and scrutinized.

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Energy and Exergy Analysis of a 348.5 MW Steam Power Plant

Cited by 42 publications

References 10 publications

Analysis of the evaporative towers cooling system of a coal-fired power plant

Analysis of the evaporative towers cooling system of a coal-fired power plant

Energy and Exergy Analyses of Forced Draft Fan for Marine Steam Propulsion System during Load Change

Thermodynamic and economic analysis of performance evaluation of all the thermal power plants: A review

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