Salman, Ameer HayderJasim, Jasim AhmedAlwan Aljuboori, Mohammed KhudhairZaidan, Ayad Awad2024-05-182024-05-182024Salman, A. H., Jasim, J. A., Alwan Aljuboori, M. K., Zaidan, A. A. (2024). Efficiency analysis of a two-stage evaporative cooling system with sustainable water pad. International Journal of Heat and Technology, 42(2), 679-687. 10.18280/ijht.4202350392-8764https://hdl.handle.net/20.500.12939/4694The efficiency of evaporative media typically ranges from 80% to 90%. The most effective systems can reduce the temperature of dry air to 95% of the wet-bulb temperature, while the least effective systems can only accomplish 50%. The rate of evaporation efficiency experiences little decline over time. The climate in Iraq has a more extended period of summer in comparison to other nations. The ambient temperature during this season exceeds 50oC, making the evaporative cooling system appropriate for this region. The evaporative cooler in this study is created by incorporating multiple heat exchanger stages (water-air) to cool the input air indirectly and indirectly before cooling directly inside the traditional evaporative cooler. When compared to compression refrigeration systems, the multistage evaporative cooler helps to reduce energy use, environmental pollution, the effects of global warming, and manufacturing costs. The multistage evaporative cooler is appropriate for use in homes and sizable structures with high relative humidity and temperatures. The developed evaporative cooler's experimental findings demonstrated that the addition of a cooling stage to a conventional cooler reduces the out-dry bulb temperature by about 50% and the specific humidity by about 80%.eninfo:eu-repo/semantics/openAccessAir conditioningAir-air heat exchangerEnergy efficiencyEvaporative coolingIndirect evaporative coolingMulti-stage evaporativeArticle4226796872-s2.0-85192139254Q3WOS:001229840700030N/A