Exergetic and thermoeconomic analyses of a coal-fired power plant

Uysal, Cüneyt; Kurt, Hüseyin; Kwak, Ho‐Young

doi:10.1016/j.ijthermalsci.2017.03.010

Cited by 64 publications

(41 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When the thermodynamic analysis was performed, Eqs. (13)(14)(15)(16)(17)(18)(19)(20)(21)(22) were used to calculate the prices of the various pieces of equipment in the system (PEC), the hourly initial investment costs (Z T k ) of these pieces of equipment, the levelized purchase prices of the pieces of equipment, and the hourly, levelized, initial investment cost streams were determined based on this levelized price. The results are provided in Table 3.…”

Section: Results Of the Exergoeconomic Analysismentioning

confidence: 99%

See 1 more Smart Citation

Exergoeconomic analysis of a geothermal organic Rankine cycle power plant using the SPECO method

Ergün

Özkaymak

Koc

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

In this study, exergy and exergoeconomic analyses were performed for a geothermal, Rankine cycle (Binary) power plant that generates 7.5 MW of power. The exergy analysis showed that the highest destruction of exergy, that is, about 3200 kW, occurred in the vaporizer. The losses were about 2670, 1700, 1035, 880, 421, 349, 306, and 33 kW in the turbine, recuperator, condenser, separator, organic fluid pump, production pump, preheater, and injection pump, respectively. The exergy efficiency of the system was calculated as 32.3% at the reference temperature of 25°C. The unit cost of the electricity produced in this plant is 7.96 $/Gj according to the exergoeconomic analysis that was made using the specific exergy cost (SPECO) method. It was determined that using low temperature sources is meaning significant. Thus, thermodynamic and thermoeconomic (exergoeconomic) analyses should be conducted in current plants to identify the inefficient equipment that is increasing costs. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 936–942, 2017

show abstract

Section: Results Of the Exergoeconomic Analysismentioning

confidence: 99%

“…The SPECO Method The SPECO method (specific exergy costing method) is calculated by the relationship between fuel and production definitions and appropriate costing equations for a given piece of equipment. Generally, this method consists of the following three steps [5,18]:…”

Section: Calculation Of the Capital Cost Of The Plant's Componentsmentioning

confidence: 99%

Exergoeconomic analysis of a geothermal organic Rankine cycle power plant using the SPECO method

Ergün

Özkaymak

Koc

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

show abstract

“…Exergetic improvement potential IP n of unit n was determined to analyze the exergetic efficiency that can be attainable in rate form (kW) and is calculated as shown in Equation

{IP}_{n} = ((), 1 - ψ_{n}) ([], {({Ex}_{in})}_{n} - {({Ex}_{out})}_{n})

…”

Section: Thermodynamic Assessmentmentioning

confidence: 98%

Performance analysis of a double calcium looping‐integrated biomass‐fired power plant: Exploring a carbon reduction opportunity

et al. 2019

View full text Add to dashboard Cite

Summary Integrating biomass energy generation with carbon capture will result in “carbon neutral” to “carbon negative” technology. Countries like India and China possess significant reserves of limestone. Calcium looping (CaL) technology can prove to be a promising option for carbon capture in these countries. The present work aims at improving the performance of CaL‐integrated biomass‐fired power plant (BFPP) by exploring different looping configurations. In this study, (i) standalone BFPP, (ii) conventional CaL (single stage), and (iii) double CaL‐integrated BFPP have been systematically evaluated. A comparative performance evaluation of these three plants in terms of energy, exergy and ecological assessment, has been carried out. A detailed parametric study and unit‐wise exergy analysis of the best configuration among the three are presented to identify the scope for further improvement in efficiency and energy savings.

show abstract

“…The cumulative exergy flow for any fluid stream can be expressed according to [38] and [39] with the following equation:…”

Section: Energy and Exergy Analysis Of Any Control Volumementioning

confidence: 99%

Energy and Exergy Analysis of the Condensate Pump During Internal Leakage from the Marine Steam Propulsion System

2018

View full text Add to dashboard Cite

An energy and exergy analysis of the condensate pump from the marine steam propulsion system during the condensate leakage between pump stages is presented in this paper. Measurements from the steam propulsion system during exploitation were necessary for collecting all the data for the condensate pump analysis. Due to condensate leakage inside the pump casing, the producer specified condensate pressures at the pump outlet could not be obtained during the exploitation. Low condensate pressure at the pump inlet and condensate temperature slightly above the atmospheric significantly influences the pump exergy analysis. Increase in pump load resulted in an increase of pump energy and exergy losses and efficiencies. In the observed load range during the leakage, pump energy losses are between 19.88 kW and 24.78 kW, while pump energy efficiencies are between 11.12 % and 41.54 %. Pump exergy losses are slightly higher, while exergy efficiencies are slightly lower when compared to energy losses and efficiencies. During normal operation, without leakage, the pump energy efficiencies are from 5 % to 20 % higher in comparison with pump operation when the leakage occurs.

show abstract

Exergetic and thermoeconomic analyses of a coal-fired power plant

Cited by 64 publications

References 27 publications

Exergoeconomic analysis of a geothermal organic Rankine cycle power plant using the SPECO method

Exergoeconomic analysis of a geothermal organic Rankine cycle power plant using the SPECO method

Performance analysis of a double calcium looping‐integrated biomass‐fired power plant: Exploring a carbon reduction opportunity

Energy and Exergy Analysis of the Condensate Pump During Internal Leakage from the Marine Steam Propulsion System

Contact Info

Product

Resources

About