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March 28, 2023Case Studies in Thermal EngineeringOpen Access

Competitive study of a geothermal heat pump equipped with an intermediate economizer for various ORC working fluids

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Authors

ZSZhao SongHebei Medical University AAAzher M. AbedUniversity of Babylon ADAhmed Farouk DeifallaFuture University in Egypt

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Implication

Simulation study evaluates exergoenvironmental metrics of economizer-assisted geothermal heat pumps across five refrigerants, highlighting operational parameters that minimize ecological impacts.

Key Points

Assess the exergoenvironmental performance of a ground-source heat pump equipped with an intermediate economizer across five different organic Rankine cycle working fluids.
Simulated the thermodynamic cycle in Engineering Equation Solver (EES) software across varying cycle pressures, evaporator superheating, and condenser subcooling.
Evaluated five refrigerants: R134a, R12, R152a, R1234yf, and R1234ze(E).
Calculated exergoenvironmental indicators including exergoenvironmental factor, exergy stability factor, environmental damage effectiveness factor, and exergoenvironmental impact improvement factor.
Operating pressures, evaporator outlet superheating, and condenser outlet subcooling significantly altered system exergy stability and environmental damage indices.
Comparative assessment revealed distinct variations in environmental impact factors among the candidate working fluids, distinguishing low-impact alternatives from traditional refrigerants.

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Song et al. (2023) studied this question.

synapsesocial.com/papers/6a806b5f03a7c7d587cae24e https://doi.org/10.1016/j.csite.2023.102954

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Implication

Simulation study evaluates exergoenvironmental metrics of economizer-assisted geothermal heat pumps across five refrigerants, highlighting operational parameters that minimize ecological impacts.

Competitive study of a geothermal heat pump equipped with an intermediate economizer for various ORC working fluids

Discussion

Member takes

Implication

Key Points

Cite This Study

Competitive study of a geothermal heat pump equipped with an intermediate economizer for various ORC working fluids

Discussion

Member takes

Implication

Key Points

Cite This Study

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