Performance characteristics of a 200-kW organic Rankine cycle system in a steel processing plant

Sung, Taehong; Yun, Eunkoo; Kim, Hyun Dong; Yoon, Sang Youl; Choi, Bum Seog; Kim, Kui-Soon; Kim, Jang-Mok; Jung, Yang Beom; Kim, Kyung Chun

doi:10.1016/j.apenergy.2016.09.018

Cited by 52 publications

(16 citation statements)

References 37 publications

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“…Study of waste heat recovery system is done in which waste thermal energy from flue gases is recovered using a mixture of nanoparticles and water in the heat exchangers and this energy is imparted to working fluid thus producing power. Continuous fluctuation in the flow rate of flue gases leads to the vacillating study of heat transfer between source fluid and working fluid.…”

Section: Application Example and Results Discussionmentioning

confidence: 99%

Comparative analysis of nanofluid‐based Organic Rankine Cycle through thermoeconomic optimization

Prajapati

Patel

2019

Heat Trans. Asian Res.

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The present work focused on the comparative analysis of organic Rankine cycle (ORC) operated with nanoparticles. The effect of CuO and Al2O 3 nanoparticles synthesized with water and circulated within heat exchangers are examined. Thermal efficiency and levelized energy cost (LEC) of the nanofluid based ORC are evaluated simultaneously in the present work. The optimization problem of ORC is formed and solved using heat transfer search algorithm. Operating parameters of the nanofluid based ORC such as pinch point temperature difference of heat exchangers, evaporation pressure, the mass flow rate of refrigerant, and concentration of nanoparticles are investigated in the optimization study. Further, the effect of turbine ratio, heat source temperature, and mass flow rate of heat source fluid on CuO and Al 2O 3 based ORC is explored and discussed. It was observed that a total variation of 35.2% was obtained at the cost of 3.5% variation in LEC between extreme design points. The maximum thermal efficiency of 19.3% and 19.32% can be obtained with CuO and Al 2O 3 with 2.616 and 2.62 $/kWh, respectively. Comparative results reveal that CuO based ORC shows dominance in terms of economic performance over Al 2O 3 based ORC for any given value of the thermal efficiency.

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Section: Application Example and Results Discussionmentioning

confidence: 99%

Comparative analysis of nanofluid‐based Organic Rankine Cycle through thermoeconomic optimization

Prajapati

Patel

2019

Heat Trans. Asian Res.

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“…For instance, Lin et al 16 assessed the utilization of an ORC in the steel industry to recover the medium grade WH of the factory flue gases at 200 C. The total annual electricity generation of the ORC was determined as 1130 MWh, which is more than the factory required electricity (1000 MWh/year). The design and construction of a 200 kW ORC with the organic fluid of 245fa was considered by Kim et al 17 for the application in a steel making plant. The output power and thermal efficiency of the system was reported as 12.9% and 235.7 kW, respectively.…”

Section: Orc Review Application Wfs and Industry Applicationsmentioning

confidence: 99%

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

Sadeghi

Askari

2020

Int J Energy Res

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SUMMARY In this article, the application of a hybrid phosphoric acid fuel cell and organic Rankine cycle (PAFC/ORC) system was thermo‐economically investigated for sulfuric acid production in Sarcheshmeh copper complex (SCC); the second largest copper deposit worldwide. The electricity that is produced by the system is consumed by electrolyzer to produce the hydrogen and sulfuric acid. Two scenarios were considered for applying the PAFC thermal energy as thermal source of the ORC to produce further power. The performance of the system was investigated considering various important parameters such as organic fluid type, PAFC current density (IPAFC), fuel & air consumption factors as well as the ORC turbine inlet pressure (Pi, ORC). The unit cost of sulfuric acid and the hybrid system simple payback period were obtained as 0.0215$/kg and 3.65 years, respectively.

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“…The maximum turbine efficiency, power and thermal efficiency were found to be 59.7%, 1.979 kW and 4.01% respectively with a heat source temperature less than 100°C. Sung et al [33] developed and tested a design of a 200 kW ORC for waste heat recovery application based on an RIT; R245fa was used as a working fluid with a temperature of 140°C. The experimental results exhibited that the ORC's thermal efficiency and power output were 9.6% and 177.4 kW respectively.…”

Section: Introductionmentioning

confidence: 99%

An innovative small-scale two-stage axial turbine for low-temperature organic Rankine cycle

Jubori

Al-Dadah

Mahmoud

2017

Energy Conversion and Management

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Performance characteristics of a 200-kW organic Rankine cycle system in a steel processing plant

Cited by 52 publications

References 37 publications

Comparative analysis of nanofluid‐based Organic Rankine Cycle through thermoeconomic optimization

Comparative analysis of nanofluid‐based Organic Rankine Cycle through thermoeconomic optimization

Performance and economic investigation of a combined phosphoric acid fuel cell/organic Rankine cycle/electrolyzer system for sulfuric acid production; Energy‐based organic fluid selection

An innovative small-scale two-stage axial turbine for low-temperature organic Rankine cycle

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