Experimental Investigation of Solar Desalination System Using Evacuated Tube Collector

Kedar, Shridhar; Kumaravel, Arul Raj; Bewoor, Anand K.

doi:10.18280/ijht.370220

Cited by 15 publications

(6 citation statements)

References 12 publications

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“…Indeed, technological and social development urges scientific researchers to diversify the freshwater resources in order to fit with the population growth. Although the abundance of water on the earth is about 97% salty, freshwater represents only 3% of the total resources [1]. Today, due to industrial development, agricultural intensification, improvement of living conditions, and massive population growth, there is a rising demand for freshwater [2,3].…”

Section: Introductionmentioning

confidence: 99%

The Shading Effect on Photovoltaic Generator (GPV) Based on Reverse Osmosis (RO) Desalination System in Algeria

Boukahil¹,

Charrouf²,

Abdeddaim³

et al. 2022

EJEE

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This paper investigates the performances analysis of PV-RO desalination system under uniform and non-uniform irradiance conditions. The main objective is the application of Extremum Seeking Control (ESC) to the GPV side in order to overcome the generated power and water quantity losses to improve the performance of the whole system. The technical design of the developed system is based on an existing RO desalination unit beside that real climatic data taken from a local mast are involved in this study. The modeling of the whole system and the control techniques adopted in this study are fully formulated. The whole system is modeled and controlled using MATLAB/Simulink. Different scenarios (healthy and shaded) based on real climatic data have been used to carry out the results. The ESC used shows its effectiveness to extract maximum power under shaded conditions for all the proposed scenarios. Compared with conventional controllers, this technique can offer extra power surrounding 685W in several cases. Furthermore, the shading conditions can affect widely freshwater production whose losses are estimated at around 82.91% for critical scenarios. The findings results are very significant for industrialists working in this field.

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Section: Introductionmentioning

confidence: 99%

The Shading Effect on Photovoltaic Generator (GPV) Based on Reverse Osmosis (RO) Desalination System in Algeria

Boukahil¹,

Charrouf²,

Abdeddaim³

et al. 2022

EJEE

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“…Extensive research has focused on the thermal transport of conventional (water-in-glass) evacuated tubes (CET) and has gained much significant attention in recent years (Alben and Hardcastle, 1981; Chopra et al , 2021; Kedar et al , 2019; Li et al , 2020; Singla et al , 2022; Zhao et al , 2016). Morrison et al investigated the influence of solar input, tank temperature and tube aspect ratio on the circulation flow rate of the CET through experiments and numerical simulations.…”

Section: Introductionmentioning

confidence: 99%

Thermal and hydrodynamic performance of an improved passive solar water heater equipped with asymmetric U-type evacuated tubes

Fan

Sun

Wan

et al. 2022

HFF

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Purpose To modify a conventional evacuated tube, an improved asymmetric U-type evacuated tube (AUET) is proposed. This study aims to investigate the thermal and hydrodynamic performances of a modified tube and determine the optimal structural form. Design/methodology/approach Based on the variation of fluid proprieties with temperature, the formulated numerical model was validated and then deployed to investigate the natural circulation in the evacuated tubes. A dimensionless number was proposed to quantify the stratification effect. The influence of the degree of asymmetry of U-type evacuated tubes on the flow patterns, mass flow rate, temperature distribution, thermal stratification and energy conversion efficiency was studied. Findings When the degree of asymmetry is large, a higher velocity and better thermal stratification are achieved, thereby avoiding stagnant water at the bottom of the tubes simultaneously. Compared with the conventional evacuated tube, the improved evacuated tube exhibited a higher thermal efficiency. Originality/value The originally proposed AUET was proven to have better performance in avoiding stagnant water, reducing fluid mixing and improving the heat transfer efficiency.

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“…Mayur patel and krunal patel [7] mainly studies critical review of evacuated tube collector whereas Dabra et al [8] were experimentally investigated effect of tilt angle on the performance of evacuated tube solar air collector. Tilt angle indicated that no positive effect on the thermosyphon phenomenon inside the evacuated tubes whereas Kedar et al [9] mainly studies thermal analysis of an evacuated tube collector in solar desalination system. Author mainly focus on single effect boiling method for ground water solar desalination system.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling and Analysis of Hybrid Solar Desalination System Using Evacuated Tube Collector (ETC) and Compound Parabolic Concentrator (CPC)

Kedar¹,

Murali²,

Bewoor³

2021

MMEP

Self Cite

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Solar desalination system is one of the technologies which converts hard water to soft water which even is useful for drinking purpose. This paper reports the mathematical modelling of hard water desalination using hybrid (ETC + CPC) solar desalination system. This model considers various parameters such as intensity of solar radiation, atmospheric temperature, wind speed, material for compound parabolic concentrator, flow rate, concentration ratio and gives idea for system performance in terms of soft water production. Experiments were conducted at Pune City which is located in western region of India and accordingly environmental parameter are considered accordingly. It is observed that average percentage error values calculated using this proposed model to quantity soft water in comparison with actual experimental results are in the range of 3% to 5%. Hence, it is concluded that numerically calculated quantity of soft water per bottle has good agreement with analytical calculation with developed thermal model. It is evident that developed model predicts the behaviour of the actual system.

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Experimental Investigation of Solar Desalination System Using Evacuated Tube Collector

Cited by 15 publications

References 12 publications

The Shading Effect on Photovoltaic Generator (GPV) Based on Reverse Osmosis (RO) Desalination System in Algeria

The Shading Effect on Photovoltaic Generator (GPV) Based on Reverse Osmosis (RO) Desalination System in Algeria

Thermal and hydrodynamic performance of an improved passive solar water heater equipped with asymmetric U-type evacuated tubes

Mathematical Modelling and Analysis of Hybrid Solar Desalination System Using Evacuated Tube Collector (ETC) and Compound Parabolic Concentrator (CPC)

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