Performance investigation of a humidification and dehumidification desalination system using a simple bubble column dehumidifier

Authors

• Fifi N.M. Elwekeel, Helwan University, Faculty of Technology and Education, Cairo, EgyptFollow
• Mostafa. S . Faramawy, Helwan University, Faculty of Technology and Education, Cairo, Egypt
• Mahmoud Abdelmagied, Helwan University, Faculty of Technology and Education, Cairo, Egypt
• Wael I.A. Aly, Helwan University, Faculty of Technology and Education, Cairo, Egypt

Document Type

Original Study

Keywords

Humidification-Dehumidification (HDH); Water Desalination; Bubble driven HDH; Thermal performance

Abstract

The present research investigates a humidification-dehumidification desalination (HDH) system that includes a simple bubble column dehumidifier. The studies are carried out under a variety of operating settings, such as saltwater temperature (50 ^oC-70 ^oC), saltwater flow rate (50×10^-3-120×10^-3 kg/s), bubble column sparger hole sizes (0.7 mm-1 mm), and chilled water level (3.5 cm-4.5 cm). The results indicate that the maximum productivity is 0.209 kg/h and the average specific energy consumption is 18.2 kWh/l. At 4 cm chilled water level and 70°C saltwater temperature, the average GOR is 16.8% and 4.7% higher than at 3.5 cm and 4.5 cm, respectively. The average dehumidifier effectiveness is 77.17% at 4.5 cm of water. This system can yield Fresh water costs 1.5 LE per kg, yielding a profit of 12.93 LE and a two-year payback period. Productivity, GOR, and SEC correlations all show ±20% deviation.

How to Cite This Article

Elwekeel, Fifi N.M.; Faramawy, Mostafa. S .; Abdelmagied, Mahmoud; and Aly, Wael I.A. (2026) "Performance investigation of a humidification and dehumidification desalination system using a simple bubble column dehumidifier," Trends in advanced sciences and technology: Vol. 3, Article 13.
DOI: 10.62537/2974-444X.1062
Available at: https://tast.researchcommons.org/journal/vol3/iss1/13