Thermal analysis of solar desalination system using evacuated tube collector

Kedar, Shridhar; Raj, Kaiwalya; Bewoor, Anand K.

doi:10.1063/1.5079020

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…Kedar et al 59 conducted a thermal analysis of a solar desalination system integrated with evacuated tubes. The length of the tube was 1500 mm, outer and inner tube glass diameters were 65 and 47 mm respectively, and the thickness of the tube was 1.6 mm.…”

Section: Vacuum Technology In Evacuated Tubesmentioning

confidence: 99%

A review on solar desalination techniques using vacuum technology

Rahul¹,

Ramanathan²,

Dhivagar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The explosion of the population is alarming as the demand increases exponentially for resources. The freshwater resources are being exploited, and innovative and economical methods are analyzed experimentally to extract freshwater from various sources. Desalination performed using solar energy is an economical method to obtain fresh water from seawater and brackish water, which are available prolifically in nature. Since the phenomenon of desalination demands solar irradiation, which is an intermittent source of energy, distillation is not feasible in some places where the solar intensity is low. In the solar desalination, the saturation temperature of the saline water is very less at low saturation pressure thereby requiring large latent heat of evaporation. Hence, vacuum pressure could be the most appropriate choice to extract drinkable water in territories where the intensity of solar irradiation is poor. In order to this, the utilization of evacuated tube collectors and vacuum technology in the solar desalination unit has been considered for discussion as it is the most sought-after subject of interest in the current scenario. Methods for implementing the vacuum technology are also introduced with plenty of experimentations. Vacuum technology implemented in the evaporator of desalination system has been supplemented with nano-fluids and phase change materials to accelerate the evaporation process, increase efficiency, and obtain a greater productivity. In this review, the performance of the solar desalination unit under the vacuum effect were discussed in detail. Furthermore, in economic analysis, the cost effectiveness and cost per liter of distillate (CPL) were discussed to estimate the payback period. Finally, this review also suggests the vision to identify the future scope for additional implementations.

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Section: Vacuum Technology In Evacuated Tubesmentioning

confidence: 99%

A review on solar desalination techniques using vacuum technology

Rahul¹,

Ramanathan²,

Dhivagar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…They argued that multi stage evacuated solar desalination system is a viable option to meet the need of rural and urban communities whereas Siddiqui et al [11] studies experimentally and theoretically performance improvement solar desalination system by using solar air heater. Kedar et al [12] experimentally investigated solar desalination system using evacuated tube collector whereas Solar water heating using heat pipe with ETC was studied by Sakthivel et al [13] and analytical model was proposed.…”

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

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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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“…Bhambare et al [10] presented various desalination systems that are available in Oman. Kedar et al [11][12][13] mainly developed an evacuated tube collector and compound parabolic concentrator using a single-effect boiling method. The authors had done extensive experimental work for a hybrid solar desalination system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Reflecting Material on CPC to Improve the Performance of Hybrid Groundwater Solar Desalination System

Kedar

Bewoor²,

Murali

et al. 2021

International Journal of Photoenergy

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Water-energy nexus is a crucial and challenging concern that addressing it is noteworthy for the future of human beings. In addition, freshwater production is a highly energy-intensive procedure. Therefore, developing a suitable solution for this problem is of importance. In the present scenario, solar energy is one of the suitable options for desalination because solar energy is available at a low cost, is clean for the environment, and is widely available. Generally, solar collectors such as flat plate collectors (FPC) and evacuated tube collectors were experimented for desalination applications. This work presents an experimental investigation of a single-stage hybrid (ETC-CPC) groundwater solar desalination system. A compound parabolic concentrator (CPC) is placed below the evacuated tube collector (ETC) for collecting solar radiations to transfer heat to evacuated tubes which improves performance in the case of different weather conditions of Pune city in India. Experimental results show that the hybrid solar groundwater desalination system, by maintaining the optimum distance of 20 mm between ETC and CPC with Mylar as the reflecting material, could offer a drinking water production rate of up to 3.4 l/(m2h)/day. However, the proposed single-stage hybrid (ETC+CPC) groundwater solar desalination system with aluminum foil as a reflecting material could generate 1.9 liters of soft water per day. Further, the use of Mylar as a reflecting material could generate 3.5 liters of soft water per day.

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Thermal analysis of solar desalination system using evacuated tube collector

Cited by 5 publications

References 12 publications

A review on solar desalination techniques using vacuum technology

A review on solar desalination techniques using vacuum technology

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

Effect of Reflecting Material on CPC to Improve the Performance of Hybrid Groundwater Solar Desalination System

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