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Saudi Journal of Engineering and Technology (SJEAT)
Volume-10 | Issue-03 | 52-59
Original Research Article
Development and Analysis of Atmospheric Water Harvesting Utilizing Peltier Module Thermoelectric Cooling
Muthuraman Subbiah, Majid Saleem Al Aamri, Mohammed Yousuf Al Bulushi, Muhanad Mohamed Al Hinai, Mohamed Fahim Al Maqdasi
Published : March 12, 2025
DOI : DOI: https://doi.org/10.36348/sjet.2025.v10i03.002
Abstract
This study examines the feasibility of utilizing atmospheric air as a clean water alternative to address water scarcity, considering Oman's normal humidity levels of 75% to 85%. The study utilizes a thermoelectric cooler (TEC 1-12706), augmented by a heatsink and fan on its hot side to improve heat dissipation. A copper cooling coil functions as both a heat absorber and a condenser for ambient air flowing through it. The coil, with a diameter of 7.9 mm and a length of 1000 mm, receives its cooling source from a water block affixed to the cold side of the cooler. Experiments were performed in three environmental conditions: laboratory, residential area, and coastal area, with variations in the airflow rate of the heatsink cooling fan. The data collection encompassed a humidity range of 72.27% to 83.01%. The findings indicated a clear association between the air mass flow rate of the heatsink cooling fan and the volume of water extractable from the air. During preliminary laboratory testing, a mass flow rate of 0.046 kg/s yielded 4.25 ml/hour, 0.069 kg/s resulted in 4.625 ml/hour, and 0.092 kg/s produced 5.5 ml/hour. Moreover, among the three environmental settings evaluated, a greater volume of water may be retrieved from coastal regions compared to labs and residential areas. In coastal regions, the air mass flow rate is 0.092 kg/s, with a potential water extraction of 7.75 ml/hour; in laboratory settings, it is 5.5 ml/hour, and in residential zones, it is 4.75 ml/hour. These encouraging results advocate additional research to enhance water extraction by optimizing the contact area between the air cooler and the coil surface, potentially providing a feasible solution for the scarcity of clean water.
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