Comparative study of double-slope solar still, hemispherical solar still, and tubular solar still using Al2O3/water film cooling: a numerical study and CO2 mitigation analysis

Shoeibi, Shahin; Mirjalily, Seyed Ali Agha; Kargarsharifabad, Hadi; Panchal, Hitesh; Dhivagar, Ramasamy

doi:10.1007/s11356-022-20437-1

Cited by 30 publications

(8 citation statements)

References 64 publications

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“…Previous studies proved that solar stills are capable to separate a wide range of organic and inorganic impurities from pharmaceutical and chemical compounds to biological contaminations. Various approaches also applied to increase the efficiency of solar stills including using different solar collectors [19] , [20] , [21] , reflectors [15] , wick materials [22] , low-cost energy storage [23] , heat localized materials [24] thermoelectric [ 25 , 26 ], phase change materials (PCM) [27] , [28] , [29] , and nanoparticles [30] , [31] , [32] , [33] . Interestingly, nanoparticles in solar stills have been attracted huge attentions of researchers due to their antibacterial characteristics against pathogens [34] , [35] , [36] .…”

Section: Solar Water Treatmentmentioning

confidence: 99%

Solar desalination/purification (solar stills, humidification-dehumidification, solar disinfection) in high altitude during COVID19: Insights of gastrointestinal manifestations and systems’ mechanism

Parsa

Norozpour

Elsheikh

et al. 2023

Journal of Hazardous Materials Advances

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Section: Solar Water Treatmentmentioning

confidence: 99%

Solar desalination/purification (solar stills, humidification-dehumidification, solar disinfection) in high altitude during COVID19: Insights of gastrointestinal manifestations and systems’ mechanism

Parsa

Norozpour

Elsheikh

et al. 2023

Journal of Hazardous Materials Advances

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“…Authors are also evaluating the possibility of introducing a more accurate computational fluid dynamics study of thermal exchanges and ventilation effect on both tested brakes and rigs. For these future developments, an interesting contribution is represented by recent works of Shoeibi et al (2022aShoeibi et al ( , 2022b and Hoseinzadeh and Heyns (2020).…”

Section: Conclusion and Future Developmentsmentioning

confidence: 99%

Modeling, testing and validation of the vibrational behavior of a dynamometric test rig for railway braking systems

Pugi

Rosano

Viviani³

et al. 2023

WJE

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Purpose The purpose of this work is to optimize the monitoring of vibrations on dynamometric test rigs for railway brakes. This is a quite demanding application considering the continuous increase of performances of high-speed trains that involve higher testing specifications for brake pads and disks. Design/methodology/approach In this work, authors propose a mixed approach in which relatively simple finite element models are used to support the optimization of a diagnostic system that is used to monitor vibration levels and rotor-dynamical behavior of the machine. The model is calibrated with experimental data recorded on the same rig that must be identified and monitored. The whole process is optimized to not interfere with normal operations of the rig, using common inertial sensor and tools and are available as standard instrumentation for this kind of applications. So at the end all the calibration activities can be performed normally without interrupting the activities of the rig introducing additional costs due to system unavailability. Findings Proposed approach was able to identify in a very simple and fast way the vibrational behavior of the investigated rig, also giving precious information concerning the anisotropic behavior of supports and their damping. All these data are quite difficult to be found in technical literature because they are quite sensitive to assembly tolerances and to many other factors. Dynamometric test rigs are an important application widely diffused for both road and rail vehicles. Also proposed procedure can be easily extended and generalized to a wide value of machine with horizontal rotors. Originality/value Most of the studies in literature are referred to electrical motors or turbomachines operating with relatively slow transients and constant inertial properties. For investigated machines both these conditions are not verified, making the proposed application quite unusual and original with respect to current application. At the same time, there is a wide variety of special machines that are usually marginally covered by standard testing methodologies to which the proposed approach can be successfully extended.

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“…They are the hourly yield, efficiency, and CPL. The results of DQN are obtained using the widely used simulation approach for modeling the nanofluid-enhanced solar still available in [41][42][43]. Moreover, the outcome considered is the concentration of nanoparticles in the nanofluid.…”

Section: Optimization Using Dqnmentioning

confidence: 99%

Deep Q-Value Neural Network (DQN) Reinforcement Learning for the Techno-Economic Optimization of a Solar-Driven Nanofluid-Assisted Desalination Technology

Jafari

Hoseinzadeh

Sohani

2022

Water

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A solar-driven desalination system, featuring a single-slope solar still is studied here. For this design, Al2O3 nanofluid is utilized, and the condition achieving the highest efficiency and cost-effectiveness is found using a reinforcement learning called a deep Q-value neural network (DQN). The results of optimization are implemented for the built experimental setup. Experimental data obtained under the climatic conditions of Tehran, Iran, are employed to compare the enhancement potential of the optimized solar still system with nanofluid (OSTSWNF) with the solar still system with water (STSWWA). The hourly fluid temperatures in the basin as well as the hourly and cumulative freshwater production (HFWP and CFWP) are discussed. A number of other parameters, including daily water production and efficiency in addition to the cost per liter (CPL) of the resulting desalinated water, are also taken into account. The results reveal that annual water production increases from 1326.8 L to 1652.4 L, representing ~25% growth. Moreover, the annual average efficiency improves by ~32%, rising from 41.6% to 54.7%. A great economic enhancement is seen as well, with the CPL decreasing by ~8%, i.e., from USD 0.0258/L to USD 0.0237/L.

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Comparative study of double-slope solar still, hemispherical solar still, and tubular solar still using Al2O3/water film cooling: a numerical study and CO2 mitigation analysis

Cited by 30 publications

References 64 publications

Solar desalination/purification (solar stills, humidification-dehumidification, solar disinfection) in high altitude during COVID19: Insights of gastrointestinal manifestations and systems’ mechanism

Solar desalination/purification (solar stills, humidification-dehumidification, solar disinfection) in high altitude during COVID19: Insights of gastrointestinal manifestations and systems’ mechanism

Modeling, testing and validation of the vibrational behavior of a dynamometric test rig for railway braking systems

Deep Q-Value Neural Network (DQN) Reinforcement Learning for the Techno-Economic Optimization of a Solar-Driven Nanofluid-Assisted Desalination Technology

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