article · Results in Engineering
Meeting the global demand for freshwater requires sustainable water resources, and humidification-dehumidification technology provides an effective method for water purification. The process operates by transferring water vapour from saline water into a carrier air stream to yield purified water. Ongoing engineering investigations have focused on enhancing this cycle through multiple technical configurations. Significant improvements include using bubbles inside evaporators and condensers, introducing ultrasonic and nozzle-based fogging methods, and incorporating different packing materials within the systems. Evaluating these system variants involves comparing critical performance factors, specifically water productivity rates, the gained output ratio, and overall operational and system costs.
Freshwater shortages present an urgent global challenge. Understanding the mechanisms and technological upgrades that make thermal desalination methods like humidification-dehumidification more efficient helps engineers and policymakers identify cost-effective ways to purify saline water for communities facing water stress.
The findings inform desalination system designers and engineering firms seeking to improve thermal water treatment equipment. The abstract reviews technological enhancements such as fogging nozzles and novel packing materials, alongside comparative metrics on productivity and cost, representing comparative engineering analysis that supports technology selection rather than presenting a near-market prototype.
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The development of sustainable water resources is an issue of great interest globally. To meet the demand for freshwater, Humidification-Dehumidification (HDH) technology has been successfully used. The effectiveness of this strategy has been improved by the implementation of numerous research investigations. To get purified water, the HDH system involves getting vapor content from the saline into a carrier air stream. HDH cycle is discussed in various forms in this paper, along with a thorough overview of important recent technological developments. Utilizing bubbles in evaporators and condensers of HDH, fogging techniques (ultrasonic and nozzles), and various packing materials are also discussed. A detailed comparison of the HDH performance factors such as the productivity, gained output ratio, and costs has been conducted.
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DOI: 10.1016/j.rineng.2024.102180
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