Influence of the relative humidity and temperature on atmospheric water harvesting using the Arduino controlled Peltier cell

Mosqueira-Moreno K.; Sánchez-Vilela G.; Yalle-Teran Y.; Vásquez-Ramírez L. · Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology (2025) · DOI: 10.18687/laccei2025.1.1.1325

Resumen

Atmospheric water uptake is influenced by relative humidity and temperature, key factors in the performance of a prototype designed and assembled with temperature and humidity sensors and a condensation system based on the Peltier cell controlled by Arduino. To evaluate its efficiency, 50 experimental tests were carried out at the Abra “El Gavilán”, located at 3155 masl, Cajamarca - Peru. The results showed that water generation is directly influenced by relative humidity, reaching its maximum performance in environments with values higher than 95%, while moderate temperatures favor the condensation process. Likewise, it was shown that the operation time and the number of Peltier cells used play a key role in the amount of water collected, suggesting that the system can be optimized and scaled to improve its efficiency. Statistical analysis confirmed a positive correlation between relative humidity and water production, supporting the viability of this technology in regions with high humidity.

Instituciones: Universidad Nacional de Cajamarca