Operation Analysis of Organic Rankine Cycle under Variable Conditions and Comparison confirmation of simulation calculation

Chen, Xiaoqing; Weiting, Jiang; Xianchang, Cao; Zhang, Liang; Chen, Chi; Chen, Zhiliang; Yang, Yi‐Qing; Pan, Weiguo

doi:10.1051/e3sconf/201913603031

Cited by 1 publication

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“…The coupled system is emulated in Aspen Plus. For the ORC, the property method is RKSOAVE . ELECNRTL is selected for the LiBr/H 2 O refrigeration cycle.…”

Section: Methodsmentioning

confidence: 99%

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Zhou

Liu

Ren

et al. 2022

ACS Sustainable Chem. Eng.

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Conventional and advanced exergy and exergoeconomic analyses are investigated on a coupled LiBr/H2O cycle/ORC system, which recovers low-grade residual heat to generate electricity. Exergy destruction rates, exergy destruction cost rates, and investment cost rates are calculated based on the exergy balance, cost balance, and auxiliary equations. The results indicate that 32.02% of the irreversibility rates, 37.66% of the irreversibility cost rates, and 25.83% of the investment cost rates can be eliminated. The ORC evaporator contributes to the highest irreversibility rate, and the LiBr absorber has the supreme investment cost rate. 83.17% of the exergy destruction rates are endogenous, which means that each component itself has a critical effect on system performance. In the advanced exergoeconomic analyses, 77.30% of the investment cost is generated by the components themselves. Except for LiBr pumps, other components reduce their exergy destruction cost rates preferentially. Optimizing methods to decrease the irreversibility of the system are also provided by this analysis.

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“…The coupled system is emulated in Aspen Plus. For the ORC, the property method is RKSOAVE . ELECNRTL is selected for the LiBr/H 2 O refrigeration cycle.…”

Section: Methodsmentioning

confidence: 99%

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Zhou

Liu

Ren

et al. 2022

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

Operation Analysis of Organic Rankine Cycle under Variable Conditions and Comparison confirmation of simulation calculation

Cited by 1 publication

References 16 publications

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

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Operation Analysis of Organic Rankine Cycle under Variable Conditions and Comparison confirmation of simulation calculation

Cited by 1 publication

References 16 publications

Comprehensive Assessment of a Coupled LiBr/H2O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Comprehensive Assessment of a Coupled LiBr/H2O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Contact Info

Product

Resources

About

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis

Comprehensive Assessment of a Coupled LiBr/H₂O Absorption Refrigeration/ORC System for Low-Grade Residual Heat Recovery Based on Advanced Exergy and Exergoeconomic Analysis