Thermal design and performance analysis of a Peltier-based portable beverage cooling device
Kangbo, Sun (2026)
Kandidaatintyö
2026
School of Energy Systems, Energiatekniikka
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2026050136982
https://urn.fi/URN:NBN:fi-fe2026050136982
Tiivistelmä
This thesis focuses on the design and analysis of a thermoelectric beverage cooler intended for localized cooling at room temperature.
The thesis first introduces the basic principles of thermoelectric cooling and analyzes the heat transfer mechanisms related to beverage cooling. Based on the above theoretical foundation, a cylindrical desktop thermoelectric beverage cooler structure scheme is proposed.
For the preliminary performance estimation, the beverage was approximated as a liquid with thermal properties similar to those of water. The effective inner diameter of the inner container was set to 95 mm, and the effective liquid height was set to 150 mm. Based on the theoretical estimation, when the initial beverage temperature was 25 °C and the cooling duration was 1200 s, the average beverage temperature was estimated to decrease to approximately 22 °C. Under this condition, the average cooling capacity of the system was approximately 11.1 W. When the thermoelectric module was assumed to operate at 6 V and 3.0 A and the fan power was taken as 1.2 W, the average coefficient of performance was preliminarily estimated to be approximately 0.58.
The preliminary analysis indicates that the proposed thermoelectric beverage cooler has the potential to provide a limited cooling effect for a single beverage container under room-temperature conditions.
The thesis first introduces the basic principles of thermoelectric cooling and analyzes the heat transfer mechanisms related to beverage cooling. Based on the above theoretical foundation, a cylindrical desktop thermoelectric beverage cooler structure scheme is proposed.
For the preliminary performance estimation, the beverage was approximated as a liquid with thermal properties similar to those of water. The effective inner diameter of the inner container was set to 95 mm, and the effective liquid height was set to 150 mm. Based on the theoretical estimation, when the initial beverage temperature was 25 °C and the cooling duration was 1200 s, the average beverage temperature was estimated to decrease to approximately 22 °C. Under this condition, the average cooling capacity of the system was approximately 11.1 W. When the thermoelectric module was assumed to operate at 6 V and 3.0 A and the fan power was taken as 1.2 W, the average coefficient of performance was preliminarily estimated to be approximately 0.58.
The preliminary analysis indicates that the proposed thermoelectric beverage cooler has the potential to provide a limited cooling effect for a single beverage container under room-temperature conditions.