Enhancing the efficacy of humidifier-dehumidifier desalination in humid regions through the use of an absorption refrigeration cycle (an economic and experimental investigation)
Abdullaev S. Abdullaeva B.S. Opakhai S. Alzubaidi L.H.
May 2024Elsevier B.V.
International Journal of Thermofluids
2024#22
This experimental study investigates the performance of a novel humidifier-dehumidifier (HDH) desalination system integrated with a vapor absorption refrigerator (VAR) and photovoltaic (PV) panels for humid regions. The effects of air mass flow rate (m˙a) and inlet air temperature on key performance indicators were evaluated. Increasing m˙afrom 0.0039 kg/s to 0.0071 kg/s led to a 73 % increase in freshwater output, a 35 % increase in Coefficient of Performance (COP), a 100 % increase in Gain of Output Ratio (GOR), and a 75 % increase in Recovery Ratio (RR), but a 20 % decrease in dehumidifier efficiency. The maximum freshwater production rate of 870 g/h and a GOR of 1.4 were obtained at m˙a= 0.0071 kg/s and inlet air temperature of 50 °C, representing a 117 % increase compared to the lowest temperature and flow rate tested. The cost of freshwater for solar and electric operation modes was 0.075 and 0.094 USD/kg, respectively. The systems novelty lies in the integration of HDH desalination with a VAR and PV system, enabling continuous freshwater production even under cloudy or nighttime conditions. The findings demonstrate the potential of the proposed system for sustainable freshwater production in humid areas.
Desalination system , Humid regions , Humidifier-dehumidifier , Hybrid heater , Photovoltaic panel , Vapor absorption refrigerator
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Faculty of Chemical Engineering, New Uzbekistan University, Tashkent, Uzbekistan
Department of Science and Innovation, Tashkent State Pedagogical University named after Nizami, Tashkent, Uzbekistan
Department of Mathematics and Information Technologies, Faculty of Mathematics and Physics, Vice-Rector for Scientific Affairs, Tashkent State Pedagogical University, Tashkent, Uzbekistan
Faculty of Physics and Technical science, L.N. Gumilyov Eurasian National University, Astana, 010000, Kazakhstan
College of technical engineering, the Islamic University, Najaf, Iraq
College of technical engineering, the Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
College of technical engineering, the Islamic University of Babylon, Babylon, Iraq
Faculty of Chemical Engineering
Department of Science and Innovation
Department of Mathematics and Information Technologies
Faculty of Physics and Technical science
College of technical engineering
College of technical engineering
College of technical engineering
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