Exergy analysis and evolutionary optimization of boiler blowdown heat recovery in steam power plants

Vandani, Amin Mohammadi Khoshkar; Bidi, Mokhtar; Ahmadi, Fatemeh

doi:10.1016/j.enconman.2015.09.018

Cited by 66 publications

(17 citation statements)

References 21 publications

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“…In a steam power plant, both exergy and energy were analyzed . Vandani, Bidi, and Ahmadi . Gonca investigated irreversible single reheat Rankine cycle and the double reheat Rankine cycle and analyzed cycles based on thermal and exergy efficiencies, exergetic performance criterion, net specific work and exergy destruction .…”

Section: Three‐e Analyses Of Power Plantsmentioning

confidence: 99%

“…101,102 Vandani, Bidi, and Ahmadi. 103 Gonca investigated irreversible single reheat Rankine cycle and the double reheat Rankine cycle and analyzed cycles based on thermal and exergy efficiencies, exergetic performance criterion, net specific work and exergy destruction. 104 In another research, the performance of several coal-fired power plants were analyzed and compared by applying energy and exergy approaches, which facilitate designing process and assessment of inefficiencies.…”

Section: Literaturementioning

confidence: 99%

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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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Section: Three‐e Analyses Of Power Plantsmentioning

confidence: 99%

Section: Literaturementioning

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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“…Nikula et al [39] proposed a data-driven model to estimate and monitor the thermal performance of the boiler in order to achieve a higher efficiency boiler with a reduction in emission pollutants. Vandani et al [40] used a genetic algorithm and partial swarm optimization techniques to improve the exergetic efficiency of boiler blowdown. It was stated that outlet pressure and outlet temperature of the boiler played a significant role in improving the exergy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Efficiency Optimization of Steam Boilers by Employing Neural Networks and Response-Surface Method (RSM)

et al. 2019

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Boiler efficiency is called to some extent of total thermal energy which can be recovered from the fuel. Boiler efficiency losses are due to four major factors: Dry gas flux, the latent heat of steam in the flue gas, the combustion loss or the loss of unburned fuel, and radiation and convection losses. In this research, the thermal behavior of boilers in gas refinery facilities is studied and their efficiency and their losses are calculated. The main part of this research is comprised of analyzing the effect of various parameters on efficiency such as excess air, fuel moisture, air humidity, fuel and air temperature, the temperature of combustion gases, and thermal value of the fuel. Based on the obtained results, it is possible to analyze and make recommendations for optimizing boilers in the gas refinery complex using response-surface method (RSM).

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“…To overcome such problems, steam reheating was introduced after high pressure turbine exhaust, which leads to decrease of the moisture content at low-pressure turbine exhaust. The effect of reheat pressure on cycle efficiency was investigated [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Steam Power Plant: A Case Study

Al-Taha

Osman

2018

MATEC Web Conf.

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In this work, the evaluated performance of thermal station is mechanically studied by determining the performance parameters for generative unit, which it is given the calculation model by doing heat balance for each one of its principal parts. A comparison is done between the particle results, which are obtained from the station and the theoretical results which its calculated from the basic first law thermodynamics, The different working loads (40%, 70%, 100%) of its completes load have been considered in order to determine the optimum working circumstances, in addition to demonstrate the effect of some working and environmental circumstances on unit performance.

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Exergy analysis and evolutionary optimization of boiler blowdown heat recovery in steam power plants

Cited by 66 publications

References 21 publications

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

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

Modeling and Efficiency Optimization of Steam Boilers by Employing Neural Networks and Response-Surface Method (RSM)

Performance Analysis of a Steam Power Plant: A Case Study

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