| dc.description.abstract | This thesis presents the design and development of a compact, energy-efficient thermoelectric
refrigeration system as a sustainable alternative to conventional vapor compression technology.
The system utilizes a TEC-12706 Peltier module as the primary cooling element, with an
Arduino Uno microcontroller enabling automated control for precise operation. A DS18B20
digital temperature sensor provides accurate real-time monitoring, while a relay module
regulates the switching of the Peltier device to maintain the desired setpoint, and a digital
display allows direct observation of the chamber temperature. To enhance performance,
aluminum heat sinks and DC fans are integrated on both sides of the Peltier module to improve
heat transfer and sustain the required thermal gradient. The entire unit is powered by a 12V DC
SMPS, ensuring stable operation. Experimental tests within an insulated chamber demonstrate
effective temperature reduction and maintenance, making the system suitable for applications
such as portable mini-refrigerators, medical sample storage, and vaccine transport. By
combining microcontroller-based automation with solid-state thermoelectric cooling, this work
highlights the potential of eco-friendly, compact, and energy-efficient refrigeration systems for
portable and versatile applications. | en_US |
