Corrosive effects of salt hydrate phase change materials used with aluminium and copper

Farrell, Anthony J.; Norton, Brian; Kennedy, David

doi:10.1016/j.jmatprotec.2005.04.058

Cited by 96 publications

(34 citation statements)

References 5 publications

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“…Solar stills suffer from low efficiencies due to loss of heat of condensation to the surroundings from the glass cover. In order to improve the productivity, it is planned to incorporate partial thermal energy storage (Farell et al, 2006;.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Heat Transfer of Triangular Pyramid Solar Still Using Phase Change Material as Storage Material

Sathyamurthy¹,

Nagarajan²,

Kennady³

et al. 2014

Frontiers in Heat and Mass Transfer

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This paper presents the method of improvement of enhancing the performance of triangular pyramid solar still with and without latent heat energy storage. For comparing the productivity of solar still with and without LHTESS a solar still is designed, fabricated. Experiments are conducted in hot and humid climate of Chennai, India. Paraffin wax is used as LHTESS due to its feasible general and economic properties. The hourly productivity is slightly higher in case of solar still without LHTESS during sunny days. There is an increase of about 35% in production of fresh water with LHTESS than that of solar still without LHTESS. Also it was found that during the off shine period the fresh water produced from the still is higher.

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Section: Introductionmentioning

confidence: 99%

Enhancing the Heat Transfer of Triangular Pyramid Solar Still Using Phase Change Material as Storage Material

Sathyamurthy¹,

Nagarajan²,

Kennady³

et al. 2014

Frontiers in Heat and Mass Transfer

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“…The anodic polarization of aluminum in 1.0 M HNO 3 solution is described by dissolution of aluminum metal. The mechanism for the dissolution of aluminum in nitric acid was reported by Foley and Nguyen [7] (3) (4) (5) (6) The controlling step in the metal dissolution is the complexation reaction between the hydrated cation and the anion which shown in Eq. (6).…”

Section: Coppermentioning

confidence: 99%

“…Farrell [7] evaluated the potential galvanic coupling of Cu and Al in contact with several PCMs. This choice of these materials was due to the usual combination of both in heat exchangers.…”

Section: Introductionmentioning

confidence: 99%

Galvanic corrosion of aluminum alloy (Al2024) and copper in 1.0M hydrochloric acid solution

Musa

Mohamad

Al-Amiery

et al. 2012

Korean J. Chem. Eng.

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The corrosion behaviors of aluminum alloy (Al2024) and copper in 1.0 M nitric acid solution at different temperatures were investigated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods. The galvanic behavior of coupled metals was also studied using zero resistance ammetry (ZRA) method. The effect of temperature was explained by application of Arrhenius and transition state theory equations. Thermodynamic parameters of activation energy (E a ), enthalpy of activation (∆H) and entropy of activation (∆S) were calculated and discussed. Results showed that the values of E and ∆H of Al2024 are lower than copper. This indicates that the corrosion reaction for aluminum alloy need lower energy to occur compared to copper. ZRA result shows that aluminum is the sacrificial anode when coupled with copper in 1.0 M nitric acid solution.

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“…Only occasionally have higher energy density latent or chemical energy storage systems been used: certain types of both the systems are unproven as to the resilience of their energy storage properties after many phase change or chemical reaction cycles, respectively. The use of phase change materials requires careful selection of materials to avoid rapid corrosion [24]. For processes that continue during the night or during periods of insufficient insolation, providing auxiliary heating has been frequently found to be more viable economically than providing sufficient energy storage that would enable solar fractions close to unity to be achieved.…”

Section: Operational Limitsmentioning

confidence: 99%

Industrial and Agricultural Applications of Solar Heat

Norton¹

2012

Comprehensive Renewable Energy

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Corrosive effects of salt hydrate phase change materials used with aluminium and copper

Cited by 96 publications

References 5 publications

Enhancing the Heat Transfer of Triangular Pyramid Solar Still Using Phase Change Material as Storage Material

Enhancing the Heat Transfer of Triangular Pyramid Solar Still Using Phase Change Material as Storage Material

Galvanic corrosion of aluminum alloy (Al2024) and copper in 1.0M hydrochloric acid solution

Industrial and Agricultural Applications of Solar Heat

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