Exergoeconomic analysis of a fluidized-bed coal combustor (FBCC) steam power plant

Özdemir, Kadriye; Hepbaşlı, Arif; Eskin, Nurdil

doi:10.1016/j.applthermaleng.2010.03.020

Cited by 36 publications

(15 citation statements)

References 11 publications

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“…In evaluating the performance of a component, the relative significance of each part should be known. This is provided by an exergoeconomic factor and relative cost difference, defined by [42,43] …”

Section: Exergoeconomic Parametersmentioning

confidence: 99%

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Exergoeconomic (Thermoeconomic) Analysis and Performance Assessment of a Gas Engine–Driven Heat Pump Drying System Based on Experimental Data

2012

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Exergoeconomic analysis has been used as a powerful tool to study and optimize various types of energy-related systems. In this study, we use the specific exergy cost (SPECO) method to calculate exergy-related parameters and display cost flows for all streams and components in a gas engine-driven heat pump drying system based on the experimental data. We analyze and evaluate the performance of the drying system components and the drying process for three different medicinal and aromatic plants from an exergoeconomic point of view. We also investigate the effect of varying dead (reference) state temperatures on exergoeconomic performance parameters for the drying system components and drying process. Although the condenser and drying chamber of the gas enginedriven heat pump dryer were significantly affected by the ambient temperature, the gas engine was slightly influenced by the ambient temperature. At low ambient temperatures, the exergy rates increased and the most effective performance obtained from this dryer was at 0 C. The performance of the drying process also increased at low ambient temperatures. This study demonstrated that exergoeconomic analysis can provide more information than exergy analysis, and the results obtained from the exergoeconomic analysis provided cost-based information, suggesting potential locations for drying system improvement.

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Section: Exergoeconomic Parametersmentioning

confidence: 99%

“…[42] In order to calculate Z CI k , the hourly levelized cost method is used. The algorithm of this method composed of six steps.…”

Section: Exergoeconomic Aspectsmentioning

confidence: 99%

Exergoeconomic (Thermoeconomic) Analysis and Performance Assessment of a Gas Engine–Driven Heat Pump Drying System Based on Experimental Data

2012

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“…• All gases are ideal (Srinivas, Gupta, and Reddy 2009;Abuadala, Dincer, and Naterer 2010;Cohce, Dincer, and Rosen 2010;Ozdemir, Hepbasli, and Eskin 2010 Note:ṁ, T, p, andĖx denote respectively mass flow rate, temperature, pressure, and exergy rate.…”

Section: Assumptionsmentioning

confidence: 99%

Exergy Analysis of a Biomass Co-Firing Based Pulverized Coal Power Generation System

Mehmood

Reddy

Rosen

2014

International Journal of Green Energy

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Results are reported of an exergy analysis of a biomass co-firing-based power generation system. A simulation is performed for a typical pulverized coal-fired steam cycle system by considering four biomass fuels (chicken litter, refuse derived fuel, rice husk, and sawdust) and two coals (bituminous coal and lignite) to investigate the effect of biomass co-firing on the system performance. Inlet and outlet exergy flows, exergy losses, and exergy efficiencies of the boiler and the plant are determined for various fuel combinations and the two cases considered at different co-firing conditions. The results show that the exergy efficiencies of both the boiler and the overall plant decrease with increasing biomass content in the fuel blend. The greatest decrease in exergy efficiency occurs for sawdust blends, while exergy efficiency decreases the least for chicken litter blends at all co-firing ratios and for both cases considered. For case 1 (fixed fuel flow rate), the plant exergy efficiency decreases from 33.82% to 32.94% and 33.39%, respectively, for the blends of bituminous coal/sawdust and bituminous coal/chicken litter, and from 32.22% to 31.54% and 32.03%, respectively, for the blends of lignite/sawdust and lignite/chicken litter when co-firing ratio increases from 0% to 30%. For case 2 (fixed heat input to steam cycle), the plant exergy efficiency declines to 32.50%, 33.05%, 31.45%, and 31.97%, respectively, for the blends of bituminous coal/sawdust, bituminous coal/chicken litter, lignite/sawdust, and lignite/chicken litter when coal flow decreases to 0.7 kg/sec.

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“…Normally, in an economic analysis, the cost balance equation for a control volume i, can be stated as given below [21]:…”

Section: Thermoeconomic Analysismentioning

confidence: 99%

Exergy and exergoeconomic assessments of an electricity production system in a running wastewater treatment plant

Ozdil

Tantekin

2016

Renewable Energy

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a b s t r a c tThis study aims at presenting a detailed exergy and exergoeconomic analyses of a biogas engine powered electricity production system in a wastewater treatment plant located in Adana, Turkey. The overall system consists of a compressor, a turbine, a pump, four heat exchangers and a gas engine. The effect of the each system component on the exergy efficiency and exergoeconomic parameters is analyzed separately. The analysis indicates that major exergy destruction happens in the gas engine as 4055.31 kW, followed by the exhaust gas heat exchanger (EGHE) and lubrication oil heat exchanger (LOHE) as 99.86 kW and 92.64 kW, respectively. The second law efficiency of the compressor, turbine, pump, BGHE, LOHE, WHE, EGHE and gas engine are found as 76.50%, 78.43%, 6.49%, 13.40%, 11.56%, 60.44%, 67.36%, and 50.79%, respectively. The operating and maintenance costs, capital investment cost and total cost of the system are reckoned as 14.

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Exergoeconomic analysis of a fluidized-bed coal combustor (FBCC) steam power plant

Cited by 36 publications

References 11 publications

Exergoeconomic (Thermoeconomic) Analysis and Performance Assessment of a Gas Engine–Driven Heat Pump Drying System Based on Experimental Data

Exergoeconomic (Thermoeconomic) Analysis and Performance Assessment of a Gas Engine–Driven Heat Pump Drying System Based on Experimental Data

Exergy Analysis of a Biomass Co-Firing Based Pulverized Coal Power Generation System

Exergy and exergoeconomic assessments of an electricity production system in a running wastewater treatment plant

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