Abstract
In this study, performance analysis of air-to-water thermoelectric (TE) Peltier devices was performed for optimal evaluation of double TE cooling systems and for comparison with single-type TE cooling devices. In the experimental study, binary (two-stage) Peltier systems have been examined and the desired values were obtained to compare the obtained results in terms of several parameters. For the air-to-water cooling TE setup, the highest cooling rate was observed for the binary discrete system under laboratory conditions. In terms of performance, the single Peltier device showed the highest COP value. The COP of the single Peltier setup was recorded as approximately 25% higher compared to the binary discrete systems. It has been revealed that the COP value of the consecutive binary Peltier systems is the lowest and their performance is remarkably low. Analysis was conducted to predict the flow structure and temperature distribution inside the refrigerator using the CFD simulation method. Ansys Fluent program has been used in this study to simulate the problem and good agreement has been achieved.
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Abbreviations
- COP:
-
Coefficient of performance
- CFD:
-
Computational fluid dynamics
- C p :
-
Specific heat capacity (J kg−1 K−1)
- G k :
-
Generation of turbulent kinetic energy
- I :
-
Electric current (A)
- K :
-
Device thermal conductance (WK−1)
- m :
-
Mass (kg)
- \(\dot{m}\) :
-
Flow rate (kg s−1)
- P:
-
Pressure (Pa)
- \(\dot{Q}\) :
-
Heat transfer rate (W)
- \(Q\) :
-
Heat transfer (J)
- T :
-
Temperature (°C)
- TE:
-
Thermoelectric
- t :
-
Time (s)
- \(v\) :
-
Volume (m3)
- u :
-
Velocity (m s−1)
- V :
-
Voltage (V)
- \(W\) :
-
Power consumption (W)
- ZT m :
-
Figure of merit
- \(\alpha\) :
-
Seebeck coefficient (V K−1)
- ρ :
-
Density (kg m−1)
- \(\mu\) :
-
Dynamic viscosity (kg m−1 s−1)
- Pu:
-
Water pump
- fa:
-
Fan
- h:
-
Hot side
- c:
-
Cold side
- Pe:
-
Peltier
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Acknowledgements
This project was supported by Research Project Foundation of the Erzurum Technical University (BAP Project No. 2020/10). The authors of this research gratefully acknowledge the support of this study.
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Afshari, F., Ceviz, M.A., Manay, E. et al. Performance analysis of air-to-water binary thermoelectric Peltier cooling systems and determination of optimum arrangement. J Braz. Soc. Mech. Sci. Eng. 44, 424 (2022). https://doi.org/10.1007/s40430-022-03737-y
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DOI: https://doi.org/10.1007/s40430-022-03737-y