Characteristic equation of double slope passive solar still

Dev, Rahul; Singh, Harjit; Tiwari, G.N.

doi:10.1016/j.desal.2010.09.037

Cited by 40 publications

(10 citation statements)

References 14 publications

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“…(1, 2) it has been observed that energy, exergy efficiencies and embodied energy of single slope solar still remain higher in comparison to that of the double slope solar still. Dev and Tiwari [12,13] have found better performances at water depth 0.01 m and an inclination angle 30º for single slope passive solar still. They have also developed the characteristic equation of single and double slope passive solar still and suggested the sum of instantaneous gain and loss efficiencies (η=η i + η iL ) remain lower than maximum efficiency under ideal i.e.…”

Section: Resultsmentioning

confidence: 99%

“…Torchia-Núñez et al [11] have found that for same exergy input a basin, brine and passive solar still have exergy efficiencies of 12.9%, 6%, and 5% respectively. Dev and Tiwari [12,13] developed the characteristic equation for single and double slope passive solar stills. In ideal solar still, the instantaneous loss efficiency is minimum (for zero depth of water mass) as analyzed by Cooper [6].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Energy and Exergy Analysis of Various Passive Solar Distillation Systems

Singh¹,

Dev²,

Hasan³

et al. 2011

Linköping Electronic Conference Proceedings

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Abstract:In this communication, a comparative energy and exergy analysis of various conventional solar distillation systems has been presented. The study includes passive solar distillation systems such as single and double slope solar stills. In a single slope solar still category, three solar stills with inclination angles 15º, 30º and 45º and a 15º inclined single slope multi wick solar still have been considered. Whereas one double slope solar stills and one double slope multi wick solar still, both inclined at 15º with east-west orientation, have been considered in double slope solar still category. The embodied energy is an important factor which depends on locally available materials and their manufacturing technologies. Materials like concrete, wood, steel etc are considered to calculate the embodied energy for the solar still equivalent to the fibre reinforced plastic after deriving the formulae. It has been found that the energy, exergy and embodied energy of single slope solar still are found higher than that of double slope solar still. Those materials which have lower thermal conductivity and low embodied energy than that of FRP such as concrete, PVC, wood can replace the FRP to save the embodied energy for similar performance. The metals have high embodied energy hence these can not be considered in terms of embodied energy despite the use of insulation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative Energy and Exergy Analysis of Various Passive Solar Distillation Systems

Singh¹,

Dev²,

Hasan³

et al. 2011

Linköping Electronic Conference Proceedings

Self Cite

View full text Add to dashboard Cite

show abstract

“…Dev and Tiwari [11][12][13][14] shows the characteristic equation for single slope passive solar still, hybrid photovoltaic thermal (PVT) active solar still, double slope solar still and inverted absorber solar still at different water depths, inclinations and climatic conditions. Solar stills are very effective way of water desalination method.…”

Section: Introductionmentioning

confidence: 99%

Design, Development and Experimental Analysis of Single Slope and Double Slope Solar Still with Different Materials

2017

IJMTER

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Solar stills are simple water desalination units. The rapid growth in the water desalination methods using solar energy develops new designs of solar stills. In this work we develops two models of solar still and tested under fixed input water capacity. Single slope still made from fiber reinforced plastic (FRP) and double slope still made from stainless steel. The performance analysis of still consists of instantaneous efficiency, temperature at various locations, heat losses and distills water output. The obtained results made it possible to comparison between both still and defining the best one which is recommended for future use.

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“…Optimal values of the cover tilt angle and insulation thickness were found to be 23° and 0.1 m respectively in a study carried out in Oman [82]. Rahul et al (2011) derived the characteristic equation for a double slope passive solar still with nondimensional parameters such as instantaneous efficiency and tested the still in the climatic condition of Delhi. The result infers that linear characteristic curves are less accurate than non-linear characteristic curves [83].…”

mentioning

confidence: 99%

“…Rahul et al (2011) derived the characteristic equation for a double slope passive solar still with nondimensional parameters such as instantaneous efficiency and tested the still in the climatic condition of Delhi. The result infers that linear characteristic curves are less accurate than non-linear characteristic curves [83]. Hanane et al (2012) conducted experiments using a double-slope solar still for desalination of seawater by considering various operating parameters such as water and glass temperature.…”

mentioning

confidence: 99%

Solar stills: A comprehensive review of designs, performance and material advances

Rufuss

Iniyan

Suganthi

et al. 2016

Renewable and Sustainable Energy Reviews

186

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Characteristic equation of double slope passive solar still

Cited by 40 publications

References 14 publications

Comparative Energy and Exergy Analysis of Various Passive Solar Distillation Systems

Comparative Energy and Exergy Analysis of Various Passive Solar Distillation Systems

Design, Development and Experimental Analysis of Single Slope and Double Slope Solar Still with Different Materials

Solar stills: A comprehensive review of designs, performance and material advances

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