Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit
In this paper, a humidification and dehumidification (HDH) desalination system is developed using an evaporative pad and thermoelectric cooling (TEC) units to condense water vapor to increase water production with minimum energy consumption. In contrast to typical HDH systems, which are based on nat...
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Elsevier
2025-09-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25009311 |
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| author | Ali M. Ashour Saif Ali Kadhim Moafaq K.S. Al-Ghezi Issa Omle Ravishankar Sathyamurthy |
| author_facet | Ali M. Ashour Saif Ali Kadhim Moafaq K.S. Al-Ghezi Issa Omle Ravishankar Sathyamurthy |
| author_sort | Ali M. Ashour |
| collection | DOAJ |
| description | In this paper, a humidification and dehumidification (HDH) desalination system is developed using an evaporative pad and thermoelectric cooling (TEC) units to condense water vapor to increase water production with minimum energy consumption. In contrast to typical HDH systems, which are based on natural heat sources or external condensers, the intended approach forms a thermally coupled setup where air humidification is improved by the evaporative pad, whilst the TEC modules provide localized condensation through preserving a cold sink surface simultaneously. The investigation was concentrated on the major operating conditions, such as air velocity (0.5–5 m/s), input voltage of the TEC (5–16 V), and seasonal environmental conditions, to assess the performance of the system as per water productivity, coefficient of performance (COP), gain output ratio (GOR), recovery ratio (RR), and effectiveness. The optimum performance is at 9 V and air velocity of 0.5–1.0 m/s, where equilibrium between electrical consumption and cooling capacity is established. The system produced daily fresh water anywhere between 1400 mL/day when it was hot and dry and 1800 mL/day when it was cooler and more humid. The maximum indicated GOR was 1.374, and the maximum COP of approximately 0.78 under optimal conditions was observed. The daily performance was the best in the morning and evening, when lower temperatures and higher humidities enhanced efficiency of condensation. The research gives us clues to improve the performance of the HDH system under optimized operating conditions. |
| format | Article |
| id | doaj-art-cfe02cb88d3d4f859b5ac344eb0f5522 |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-cfe02cb88d3d4f859b5ac344eb0f55222025-08-20T02:36:34ZengElsevierCase Studies in Thermal Engineering2214-157X2025-09-017310667110.1016/j.csite.2025.106671Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unitAli M. Ashour0Saif Ali Kadhim1Moafaq K.S. Al-Ghezi2Issa Omle3Ravishankar Sathyamurthy4College of Mechanical Engineering, University of Technology- Iraq, Baghdad, IraqCollege of Mechanical Engineering, University of Technology- Iraq, Baghdad, IraqCollege of Mechanical Engineering, University of Technology- Iraq, Baghdad, IraqInstitute of Physics and Electrical Engineering, University of Miskolc, Miskolc, Hungary; Corresponding author.Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, 31621, Dhahran, Saudi Arabia; IRC Sustainable Energy Systems (IRC-SES), King Fahd University of Petroleum & Minerals, 31261, Dhahran, Saudi ArabiaIn this paper, a humidification and dehumidification (HDH) desalination system is developed using an evaporative pad and thermoelectric cooling (TEC) units to condense water vapor to increase water production with minimum energy consumption. In contrast to typical HDH systems, which are based on natural heat sources or external condensers, the intended approach forms a thermally coupled setup where air humidification is improved by the evaporative pad, whilst the TEC modules provide localized condensation through preserving a cold sink surface simultaneously. The investigation was concentrated on the major operating conditions, such as air velocity (0.5–5 m/s), input voltage of the TEC (5–16 V), and seasonal environmental conditions, to assess the performance of the system as per water productivity, coefficient of performance (COP), gain output ratio (GOR), recovery ratio (RR), and effectiveness. The optimum performance is at 9 V and air velocity of 0.5–1.0 m/s, where equilibrium between electrical consumption and cooling capacity is established. The system produced daily fresh water anywhere between 1400 mL/day when it was hot and dry and 1800 mL/day when it was cooler and more humid. The maximum indicated GOR was 1.374, and the maximum COP of approximately 0.78 under optimal conditions was observed. The daily performance was the best in the morning and evening, when lower temperatures and higher humidities enhanced efficiency of condensation. The research gives us clues to improve the performance of the HDH system under optimized operating conditions.http://www.sciencedirect.com/science/article/pii/S2214157X25009311Humidification–Dehumidification (HDH)Thermoelectric Cooling (TEC)Evaporation padDesalination performanceSpecific energy consumptionGain‐Output Ratio (GOR) |
| spellingShingle | Ali M. Ashour Saif Ali Kadhim Moafaq K.S. Al-Ghezi Issa Omle Ravishankar Sathyamurthy Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit Case Studies in Thermal Engineering Humidification–Dehumidification (HDH) Thermoelectric Cooling (TEC) Evaporation pad Desalination performance Specific energy consumption Gain‐Output Ratio (GOR) |
| title | Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| title_full | Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| title_fullStr | Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| title_full_unstemmed | Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| title_short | Performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| title_sort | performance analysis of a water desalination system using humidification and dehumidification techniques with thermoelectric cooling unit |
| topic | Humidification–Dehumidification (HDH) Thermoelectric Cooling (TEC) Evaporation pad Desalination performance Specific energy consumption Gain‐Output Ratio (GOR) |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25009311 |
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