Performance prediction of a new solar-driven electrochemical refrigerator

Zhao, Qin; Zhang, Houcheng; Hu, Ziyang; Hou, Shujin; Guo, Juncheng

doi:10.1016/j.applthermaleng.2020.115589

Cited by 12 publications

(9 citation statements)

References 49 publications

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“…Some assumptions are made here for simplifying model formulation: The consumption for hydrogen and air is according to the HT‐PEMFC current density 37 ; All heat transfer in the triple‐cycle system obeys the Newton's law 38 ; The cold or hot side temperature of the TEG are roughly equivalent to the environment or FC operating temperature 39 ; CO poisoning on Pt catalysts is neglected 40 ; The working temperature and pressure for the HT‐PEMFC remain unchanged 41 ; The potential exergy and kinetic exergy of reactants and products are neglected 42 ; The TEG is externally reversible, that is, the hot or cold side temperature for the TEG equals its hot or cold junction temperature 20 ; The charge current for the TRER equals to the discharge current 35 ; The triple‐cycle system operates in steady state 43 …”

Section: System Descriptionmentioning

confidence: 99%

“…Considering the heat flows during charging and discharging steps, internal resistance, and heat losses of the regenerator, the heat rates rejected and absorbed by the TRER are, respectively, calculated as. 35…”

Section: Thermally Regenerative Electrochemical Refrigeratormentioning

confidence: 99%

“…Based on Equations () and (), the electric power from the TEG into the TRER is given by Reference 35.

P_{in} goodbreak= Q_{H 2} goodbreak- Q_{C 2} goodbreak= m ([], β ((), T_{0} goodbreak- T_{C}) I_{2} goodbreak+ 2 {I_{2}}^{2} R_{in}) .

…”

Section: System Descriptionmentioning

confidence: 99%

“…A photovoltaic (PV)‐TRER hybrid system was proposed in Reference [34], which showed that the coefficient of performance and refrigerating capacity for the proposed system were decreased with the hot reservoir temperature and increased with the cold reservoir temperature. Zhao et al 35 proposed an advanced dye‐sensitized solar cell (DSSC)–TRER hybrid system for cooling. They found that the maximum coefficient of performance and refrigerating rate density for the system were, respectively, 0.8 and 800.47 W m −2 .…”

Section: Introductionmentioning

confidence: 99%

“…8. The charge current for the TRER equals to the discharge current 35 ; 9. The triple-cycle system operates in steady state.…”

mentioning

confidence: 99%

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A novel triple‐cycle system based on high‐temperature proton exchange membrane fuel cell, thermoelectric generator, and thermally regenerative electrochemical refrigerator for power and cooling cogeneration

Guo

Zhang

Guo

et al. 2022

Intl J of Energy Research

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Summary To effectively utilize the exhaust heat of high‐temperature proton exchange membrane fuel cells (HT‐PEMFCs) for cooling, a novel triple‐cycle system model mainly including a HT‐PEMFC, thermoelectric generator (TEG), and thermally regenerative electrochemical refrigerator (TRER) is theoretically formulated. The TEG activated by the HT‐PEMFC exhaust heat is used to drive the TRER for cooling. Considering irreversible losses in the HT‐PEMFC, TEG, and TRER and among these subsystems, mathematical formulas of the energetic and exergetic performance indexes are obtained. Calculation results show that compared with a sole HT‐PEMFC system, the equivalent power density, energetic efficiency, and exergetic efficiency for the triple‐cycle system increase by 16.0%, 12.6%, and 12.7%, respectively. The exergy destruction rate density reduces by 1.0%. Finally, sensitivity analysis of seven key parameters is conducted. This study can provide a valuable guide for the design of actual triple‐cycle systems based on HT‐PEMFCs for power and cooling cogeneration.

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Section: System Descriptionmentioning

confidence: 99%

Section: Thermally Regenerative Electrochemical Refrigeratormentioning

confidence: 99%

“…Based on Equations () and (), the electric power from the TEG into the TRER is given by Reference 35.

P_{in} goodbreak= Q_{H 2} goodbreak- Q_{C 2} goodbreak= m ([], β ((), T_{0} goodbreak- T_{C}) I_{2} goodbreak+ 2 {I_{2}}^{2} R_{in}) .

…”

Section: System Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…8. The charge current for the TRER equals to the discharge current 35 ; 9. The triple-cycle system operates in steady state.…”

mentioning

confidence: 99%

See 3 more Smart Citations

A novel triple‐cycle system based on high‐temperature proton exchange membrane fuel cell, thermoelectric generator, and thermally regenerative electrochemical refrigerator for power and cooling cogeneration

Guo

Zhang

Guo

et al. 2022

Intl J of Energy Research

Self Cite

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Performance investigation of a system hybridizing dye‐sensitized solar cell with thermoelectric devices for power and cooling

Huang

Chen

2022

Intl J of Energy Research

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Summary To realize the broad energy utilization, a novel combined system mainly consisting of a dye‐sensitized solar cell (DSSC), a thermoelectric generator (TEG), and a thermoelectric cooler (TEC) is proposed. The heat released by the DSSC is partially utilized for TEG to generate electricity, thereby driving the TEC for cooling. Considering diverse irreversible losses of the system, the power density, energy efficiency, and exergy efficiency of the coupled system are discussed concretely. In the TEG‐TEC current working range, when the power density or efficiency increase rate of the integrated model reaches a maximum, the corresponding power density, energy efficiency, and exergy efficiency are 38.439 W m−2, 13.21%, and 28.34%, respectively, which are 4.42%, 4.43%, and 4.38% higher than those of the DSSC alone. Comprehensive sensitivity analyses are performed for figuring out how the proposed system performance changes with the variation of main operating conductions as well as design parameters of DSSC and TEG‐TEC. Finally, owing to the Thomson effect in TEG‐TEC, the conclusions got here indicate that energy efficiency and power density about this combined model are reduced by 33.28% and 33.22%. Derived conclusions reveal that the established system is appropriate, which may supply new insights into the majorization of such a functional coupled system.

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Modeling and performance/sensitivity analysis of a thermally regenerative electrochemical refrigerator powered by thermoelectric generator

2023

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Performance prediction of a new solar-driven electrochemical refrigerator

Cited by 12 publications

References 49 publications

A novel triple‐cycle system based on high‐temperature proton exchange membrane fuel cell, thermoelectric generator, and thermally regenerative electrochemical refrigerator for power and cooling cogeneration

A novel triple‐cycle system based on high‐temperature proton exchange membrane fuel cell, thermoelectric generator, and thermally regenerative electrochemical refrigerator for power and cooling cogeneration

Performance investigation of a system hybridizing dye‐sensitized solar cell with thermoelectric devices for power and cooling

Modeling and performance/sensitivity analysis of a thermally regenerative electrochemical refrigerator powered by thermoelectric generator

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