TY - EJOU AU - Alshukri, Mohammed J. AU - Al-Khateeb, Amjed AU - Alsayah, Ahmed Mohsin AU - Eidan, Adel A. AU - Mahood, Hameed B. TI - Enhancing Evaporative Cooler Efficiency through Magnetized Water and Heat Exchanger Optimization T2 - Energy Engineering PY - 2025 VL - 122 IS - 4 SN - 1546-0118 AB - This research presents a new method to boost the efficiency of evaporative coolers by integrating magnetized water and a heat exchanger. Magnetized water, known for its high evaporation rate and reduced surface tension, offers a promising way to enhance air cooler performance. Additionally, the advanced heat exchanger both improves air cooling capacity and controls humidity levels. Aloni 100 L, a locally manufactured evaporative cooling system, and tap water were used in experiments. Tap water was magnetized using recycled magnets extracted from computer hard drives. Twenty-six magnets meticulously arranged within rectangular grooves, each with a minimum strength of 0.5 to 1 T, were used to magnetize tap water. Our experiments show a significant rise in cooling efficiency, with magnetized water increasing from 70.62% to 91.43%. In a similar vein, adding the heat exchanger leads to a significant improvement, raising the cooling efficiency from 69.44% to 93.96%. Furthermore, the combined use of magnetized water and a heat exchanger results in exceptional performance, increasing cooling efficiencies by 29.5% and 35.3% compared to using only magnetized water or only a heat exchanger, respectively. This study also explores the largely untapped potential of magnetized water, providing valuable insights into its effects on water properties and its broader applications in various fields. These findings represent a significant advancement in air cooling technology and pave the way for more energy-efficient and sustainable solutions. KW - Evaporative cooling; magnetized water; heat exchanger; air cooler; subtropical weather DO - 10.32604/ee.2025.060613