Thermal performance assessment of an evaporative condenser-based combined heat pump and humidification-dehumidification desalination system

Faegh, Meysam; Shafii, Mohammad Behshad

doi:10.1016/j.desal.2020.114733

Cited by 30 publications

(7 citation statements)

References 29 publications

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“…They discovered a maximum COP of about 6.13. Faegh and Shafii [ 49 ] investigated the use of this heat pump in humidification and dehumidification concepts and discovered a maximum gross output ratio of about 2.0 and an hourly productivity of about 1.08 kg. Lawal et al [ 50 ] discovered a maximum gross output ratio of 2.72, a recovery ratio of 2.56%, and a productivity of 9.23 kg h −1 .…”

Section: Heat‐pump‐assisted Solar Stillsmentioning

confidence: 99%

A Concise Review on Productivity and Economic Analysis of Auxiliary‐Component‐Assisted Solar Stills

Dhivagar¹

2021

Energy Tech

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The supply of potable water is insufficient to meet the needs of the growing population and daily life. Due to high salt concentrations, ocean water cannot be used directly. Furthermore, the water in rivers and lakes is contaminated with industrial wastes, making it unsafe to drink. A solar still is a simple device that uses solar energy to purify saline water via evaporation and condensation. Solar stills have undergone various modifications to improve the daily productivity. Herein, an attempt is made to categorize the various types of auxiliary components, such as biomass heat sources, gravel bed sensible heat storage, heat pipes, heat pumps, solar collectors, and ponds, assisting in solar stills to improve the daily productivity and energy efficiency. The review outcome shows that the improved daily productivity and energy efficiencies are about 231% and 65% higher than for conventional solar still. Furthermore, in economic analysis, the maximum annual productivity and cost per liter of distillate are about 5845.3 kg m−2 and 1.93 USD, respectively. The maximum payback period is estimated to be 23.9 years. The review also suggests the vision to identify the future scope for additional implementations.

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Section: Heat‐pump‐assisted Solar Stillsmentioning

confidence: 99%

A Concise Review on Productivity and Economic Analysis of Auxiliary‐Component‐Assisted Solar Stills

Dhivagar¹

2021

Energy Tech

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“…On the other hand, solar desalination as a sustainable, low-cost, and eco-friendly method of treating seawater is the most promising option for meeting the future energy needs of humanity. , The traditional direct solar distillation system has a low solar thermal conversion efficiency, which can only reach about 30–45% . With the development of technology, researchers have found that solar thermal steam conversion based on interface heating can achieve a higher energy conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Aluminum-Based Heterogeneous Surface for Efficient Solar Desalination and Fog Harvesting Processed by a Picosecond Laser

Liang,

Wang,

Chu

et al. 2023

ACS Appl. Mater. Interfaces

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Solar desalination and fog harvesting are two common ways to obtain fresh water, and both are promising methods to solve the water shortage problem. However, through either the fabrication of interfacial evaporators for solar desalination or the preparation of superwetting surfaces for fog harvesting, current methods suffer from long preparation times, high costs, and low efficiency. Herein, we report an efficient and simple method to process heterogeneous surfaces (HSs) on aluminum (Al) by picosecond laser processing combined with chemical treatment used for fog harvesting and seawater desalination. The as-prepared HS simultaneously consists of regular periodic stripe structures with superhydrophilicity and superhydrophobicity. The spacing of the superhydrophilic and superhydrophobic regions can be adjusted through the processing path. This surface has a 44% improvement in fog harvesting efficiency compared to a pristine Al sheet, which is 0.53 kg•m −2 •h −1 . Furthermore, it shows a high evaporation rate of 2.35 kg•m −2 •h −1 under one sun irradiation with an energy efficiency of 52.39%. Such functional surfaces can be applied to obtain fresh water resources in both coastal regions and arid areas, where water mist is relatively abundant, providing reference and guidance for fresh water collection, and being a promising way to solve the water shortage problem.

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“…Besides, Faegh and Shafii (2020) evaluated the performance of an HDD system combined with a heat pump employing an evaporative condenser. The performance was measured in terms of water production rate and GOR while operating parameters such as inlet air flow rate, compressor speed, and ambient wet-bulb temperature were varied.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Desalination of Salt Water Comprising Polypropylene Hollow Fibre Membranes

Elewa

Ramadan

El-Emam³

et al. 2023

Misr Journal of Agricultural Engineering

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The problem of desalination systems using advanced hollow fibre (HF) membranes were thoroughly investigated. Humidification air is cooled by heat transfer in the dehumidification chamber, which condenses the water vapour and produces high-quality, fresh drinking water. A mathematical approach was conducted, and a simulation programme (model) was developed for the system. The performance of the HF membranes was assessed using different mass flows of salt water and air to optimise the system's operating performance. An experimental setup was prepared to test the effect of changing the operating parameters on the produced fresh water's flux. The produced flux ranged from 2.36-10.6 kg h -1 m -2 at 40-70 o C, respectively. The comparisons between the simulation results and the experimental setup were in good agreement, and the water quality analysis showed that the obtained values were within the World Health Organization's drinking water guidelines.

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Thermal performance assessment of an evaporative condenser-based combined heat pump and humidification-dehumidification desalination system

Cited by 30 publications

References 29 publications

A Concise Review on Productivity and Economic Analysis of Auxiliary‐Component‐Assisted Solar Stills

A Concise Review on Productivity and Economic Analysis of Auxiliary‐Component‐Assisted Solar Stills

Aluminum-Based Heterogeneous Surface for Efficient Solar Desalination and Fog Harvesting Processed by a Picosecond Laser

Simulation of Desalination of Salt Water Comprising Polypropylene Hollow Fibre Membranes

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