1. Vaccine storage with a hybrid system integrating thermoelectric cooling and vapour compression refrigeration: An experimental study.
- Author
-
Ashour, Ali M., Salman, Ali D., and Salman, Ayad M.
- Subjects
- *
HYBRID systems , *THERMOELECTRIC cooling , *TEMPERATURE distribution , *LOW temperatures , *CONSUMPTION (Economics) - Abstract
Combining VCR and TEC technologies creates a hybrid system in this study. VCRs absorb heat from TEC as a supplementary system. TEC modules freeze vaccines at low temperatures, and a VCR evaporator cools them in the hybrid system. An experimental study of the hybrid system examines the total power consumed, cooling capacity, coefficient of performance (COP), and freezer compartment temperature distribution under different operational conditions, including TEC module voltage and freezer fan speed. The TEC module works best at 5.5 volts and the freezer fan speed at 12 volts, according to experiments. TEC's cold side is -42 °C, and its power consumption is 173.42 W. Power consumption for TEC modules is 119 W and VCR compressor is 48.4 W. The COP of the hybrid system is 1, while the individual COP values for VCR and TEC module are 1.95 and 0.19, respectively. An increase in the voltage of thermoelectric coolers (TECs) operating under conditions greater than the optimal 5.5 volts results in an increase in power consumption and a decrease in the coefficient of performance (COP). The results indicate that power consumption increases by 14.5% and 25.7% at 6.5 and 7.5 volts for the TEC module, respectively. Additionally, the COP of the hybrid system decreases by 25.2% and 65.45% when the TEC is operated at 6.5 and 7.5 volts, respectively. [ABSTRACT FROM AUTHOR] more...
- Published
- 2025
- Full Text
- View/download PDF