Steps optimization and productivity enhancement in a nanofluid cascade solar still

Rashidi, Saman; Bovand, M.; Rahbar, Nader; Esfahani, Javad Abolfazli

doi:10.1016/j.renene.2017.11.048

Cited by 129 publications

(25 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, there is a good agreement between the experimental and numerical results. Rashidi et al [63] repeated this analysis for a cascade solar still. This revealed that, in general, the distance between evaporating and condensing surfaces (water and glass cover surfaces) decreases by using a cascade solar still.…”

Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 97%

“…Thus, the vapour transfers faster to condensing surface through using a cascade solar still. Rashidi et al [63] found that the productivity of solar still improves by about 22% when Al2O3 nanoparticle concentration increases in the range of 0 to 5%. Figure 14 shows that the liquid and vapour fractions inside the cascade solar still of Rashidi et al [63] during times for two values of nanoparticle concentration.…”

Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 99%

See 1 more Smart Citation

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Rashidi

Karimi

Mahian

et al. 2018

J Therm Anal Calorim

Self Cite

131

View full text Add to dashboard Cite

In recent years, nanofluids have been widely used to improve the performance of various energy systems due to their favourable thermo-physical and optical characteristics. In particular, solar distillation systems, as an affordable and reliable technique to provide freshwater, have benefited from nanofluid technology. This article performs a review of literature on the implementation of nanofluid technology in active and passive solar distillation systems. The progress made and the existing challenges are discussed and some conclusions and suggestions are made for future research. The review indicates that the daily productivities of solar distillation systems enhance by using nanofluid and increasing the volume fraction of nanoparticles. However, long-term operational stability and life cycle assessment remain critical issues. These factors should be considered for future research in this field.

show abstract

Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 97%

Section: Solar Still Enhanced Only With Nanoparticlementioning

confidence: 99%

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Rashidi

Karimi

Mahian

et al. 2018

J Therm Anal Calorim

Self Cite

131

View full text Add to dashboard Cite

show abstract

“…Rashidi et al used the volume of the fluid model to simulate the nanofluid flow and entropy generation in conventional solar still. Also, Rashidi et al carried out steps optimization as well as yield improvement in nanofluid‐based cascade solar still.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

et al. 2019

View full text Add to dashboard Cite

Summary This work aims at augmenting the amount of potable water using MgO and TiO2 in stepped solar still. Experiments were carried out for the climatic conditions of Chennai, India, with two different concentrations of nanofluids inside a stepped basin under three different cases. Results show that there is an improvement in yield of fresh water from stepped solar still by 33.18% and 41.05% using 0.1% and 0.2% volume concentration of TiO2 nanofluid, respectively, whereas the freshwater yield from stepped still with MgO nanofluids improved by 51.7% and 61.89%. Furthermore, the economic analysis revealed that the cost of potable water from the modified solar still reduced from 0.029 to 0.016 $/kg. Similarly, the useful annual energy, yearly cost per kilogram, and annual cost per kilowatt hour are significantly profitable with the use of MgO nanofluid in the stepped basin and found as 512.46 kWh, 0.025 $/kg, and 0.026 $/kWh, respectively. It is also found that the cost of potable water from the modified still significantly increases as the amount of fresh water produced is decreased with increased fabrication cost of the solar still.

show abstract

“…They pointed out that the use of inclined trays in the stepped solar still increased the freshwater productivity to 605 mL/m 2 . Rashidi et al have investigated the effect of nanofluid on the productivity of a stepped solar still numerically [22]. Also, they have optimised the geometry of steps.…”

mentioning

confidence: 99%

“…The abovementioned literature review showed that the effects of various design and operating parameters (i.e. air gap [13], mass flow rate [7,17], wick material [15], internal reflector [19], baffle [17,20], inclined tray [21], steps geometry optimisation [22] and nanofluid [5,6]) on the freshwater productivity of stepped cascade solar still have been investigated. However, the effect of PV/T collector connection to stepped cascade solar still to enhance freshwater productivity is not investigated.…”

mentioning

confidence: 99%

Energy analysis of a stepped cascade solar still connected to photovoltaic thermal collector

Hedayati-Mehdiabadi¹,

Baluchestan²,

Sarhaddi³

et al. 2017

Int. J. Automot. Mech. Eng.

View full text Add to dashboard Cite

In this paper, the performance evaluation of a stepped cascade solar still connected to photovoltaic thermal (PV/T) collector was carried out. The governing equations of problem was a set of initial value ordinary differential equations which were obtained by writing energy balance for the various components of solar still system (i.e. glass cover, brackish water, absorber plate, and PV/T collector). The numerical model of problem was solved by the 4th-order Runge-Kutta method under real climatic conditions sample. The validation of numerical model was carried out by the experimental data of previous literature. Parametric studies showed that the energy efficiency of stepped cascade solar still maximised in the desired brackish water flow of 0.03 kg/min and the PV/T collector area of 1.3 m 2 . The daily energy efficiency and accumulated freshwater were about 26% and 5.71 kg/(m 2 .day), respectively. An increase of about 20% was obtained in freshwater productivity by the connection of PV/T collector to the stepped cascade solar still. Also, PV/T collector, in addition to providing pumping power, can supply electrical power of about 0.918 kW/day for other uses. In order to produce freshwater during the night time, the usage of the phase change materials below the absorber plate was suggested.

show abstract

Steps optimization and productivity enhancement in a nanofluid cascade solar still

Cited by 129 publications

References 22 publications

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still

Energy analysis of a stepped cascade solar still connected to photovoltaic thermal collector

Contact Info

Product

Resources

About

Steps optimization and productivity enhancement in a nanofluid cascade solar still

Cited by 129 publications

References 22 publications

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

A concise review on the role of nanoparticles upon the productivity of solar desalination systems

Experimental investigation on the effect of MgO and TiO 2 nanoparticles in stepped solar still

Energy analysis of a stepped cascade solar still connected to photovoltaic thermal collector

Contact Info

Product

Resources

About

Experimental investigation on the effect of MgO and TiO ₂ nanoparticles in stepped solar still