Optimum design of dual pressure heat recovery steam generator using non-dimensional parameters based on thermodynamic and thermoeconomic approaches

Naemi, Sanaz; Saffar‐Avval, Majid; Kalhori, Sahand Behboodi; Mansoori, Z.

doi:10.1016/j.applthermaleng.2012.12.004

Cited by 43 publications

(12 citation statements)

References 16 publications

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“…The entire performance in a gas turbine system can be determined by putting forth the irreversibilities [37][38][39][40][41]. The whole performance of a system and its segments can be improved when the irreversibilities and the exergy destructions of the system are diminished [42,43]. Not only the destruction ratio but also the interplay of the segments in a system can give the researchers a better comprehension to evaluate the performance metrics in a gas turbine engine.…”

Section: Introductionmentioning

confidence: 99%

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

et al. 2020

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This study dealt with evaluating the (J85-GE-5H) military turbojet engine (TJE) in terms of exergetic and advanced exergetic analyses at Military (MIL) and Afterburner (AB) process modes by utilizing kerosene (JP-8) and hydrogen (H2) fuels. First, exergy and advanced exergy analyses of the engine were performed using JP-8 fuel as per actual engine operating conditions. These analyses of the turbojet engine using hydrogen fuel were also examined parametrically. The performance evaluation of the engine was lastly executed by comparing the obtained results for both fuels. Based on the parametric studies undertaken, the entire engine’s exergetic efficiency with JP-8 was reckoned 30.85% at the MIL process mode while it was calculated as 16.98% at the AB process mode. With the usage of H2, the efficiencies of the engine decreased to 28.62% and 15.33% for the above mentioned two modes, respectively. As the supreme exergy destructions occurred in the combustion chamber (CC) and afterburner exhaust duct (ABED) segments, the new technological developments should be considered to design more efficient engines. As a result, the engine worked less efficiently with hydrogen fuel due to the enhancement in exergy destructions. Conversely, the greenhouse gas (GHG) emission parameters lessened with the utilization of H2 fuel.

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Section: Introductionmentioning

confidence: 99%

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

et al. 2020

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“…Tesiste akışkan yataklı kazan (ısı), türbin termal ekserji ve buhar üretimi için aşağıdaki ekserji maliyet formülü kullanılmıştır [4,14]. …”

Section: Yöntem Ve Denklemler (Methods and Equations)unclassified

Şeker Fabri̇kalarindaki̇ Enerji̇ Santralleri̇ İçi̇n Termoekonomi̇k Anali̇z Yöntemi̇

Taner¹,

Sivrioğlu²

2014

Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖZETBu çalışma, şeker fabrikalarındaki buhar enerji güç santrallerine termoekonomik analiz yönteminin uygulanması üzerinedir. Örnek olarak Konya Çumra Şeker Fabrikası ele alınmış ve termoekonomik yöntem uygulanmıştır. Termoekonomik yöntem olarak eşitlik (ekserjik maliyet denge) yöntemi uygulanmıştır. Buhar enerji güç santralindeki ekserji hesaplamaları dikkate alınarak mevcut duruma göre senaryolar üretilmiştir. Bu çalışmadaki amaç; şeker fabrikalarında yoğun olarak kullanılan ve üretilen enerjiden en iyi şekilde faydalanıp fabrikanın karlılığını arttırmaktır. Bu çalışma ile buhar enerji güç santralindeki mevcut gücün arttırılması amaçlanarak, ekserji maliyetinin düşürülmesi hedeflenmiştir. Bu çalışmada, fabrikada mevcut buhar enerji güç santralinden 8 THERMOECONOMIC ANALYSIS FOR THE POWER PLANTS OF SUGAR FACTORIES ABSTRACTThis study focuses on the application of thermoeconomic analysis for the steam energy power plants of sugar factories. Konya Cumra Sugar Factory was considered as a sample sugar factory for which the thermoeconomic analysis was applied. The equality method (balance of the exergetic-costing method) was applied for thermoeconomic calculations. Exergy calculations of the steam energy power plant are considered to produce some scenarios compared to the current situation. The aim of this study is to increase the profit ratio of the sugar factory by achieving the most efficient usage of energy that is intensively used and produced within the factory. With this study we aimed to decrease the cost of exergy by increasing the present power of the steam energy power plant. In this study, some scenarios were considered with different powers compared to the present steam energy power plant of the factory. When 14 [MW] was selected for the steam energy power plant, we observed that the cost of the exergy decreased to 1.370 x10^-5 [€/kJ] according to the present of the steam energy power plant.

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“…In addition, HRSG key parameter design and optimization have elicited an increasing amount of attention in recent years. Thermodynamic and thermo-economic approaches have been applied to design the initial parameters [6]. To obtain the optimum values of design parameters, a thermo-economic modelling and optimization method has been adopted for dual-pressure HRSG [7].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic performance simulation and concise formulas for triple-pressure reheat HRSG of gas–steam combined cycle under off-design condition

Zhang

Zheng

Yang

et al. 2016

Energy Conversion and Management

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Optimum design of dual pressure heat recovery steam generator using non-dimensional parameters based on thermodynamic and thermoeconomic approaches

Cited by 43 publications

References 16 publications

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

Comparative Performance Metric Assessment of A Military Turbojet Engine Utilizing Hydrogen And Kerosene Fuels Through Advanced Exergy Analysis Method

Şeker Fabri̇kalarindaki̇ Enerji̇ Santralleri̇ İçi̇n Termoekonomi̇k Anali̇z Yöntemi̇

Thermodynamic performance simulation and concise formulas for triple-pressure reheat HRSG of gas–steam combined cycle under off-design condition

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