Middle term immersion corrosion tests on metal-salt hydrate pairs used for latent heat storage in the 32 to 36°C temperature range

Cabeza, Luisa F.; Illa, Josep; Roca, J.; Badía, F.; Mehling, Harald; Hiebler, Stefan; Ziegler, Felix

doi:10.1002/1521-4176(200110)52:10<748::aid-maco748>3.0.co;2-s

Cited by 61 publications

(34 citation statements)

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“…This corrosion problem is practically no real threat in processes under near vacuum conditions (limited air or oxygen in an adsorber [35]). Corrosion tests have shown that CaCl 2 $6H 2 O can be used as molten salt in metal container of brass and copper [28]. Stainless steel and aluminium are recommended with caution (in case of steel pitting) and for short term applications.…”

Section: Corrosionmentioning

confidence: 99%

“…-A relatively higher thermal conductivity, whether in solid or liquid state, compared to other materials of the same kind [26,27]. -A better thermal [1,16] and chemical stability [15] than other salt hydrates -A less corrosiveness than other salt hydrates [16,28] -A high latent heat of fusion (hexahydrate) [15] -A small volume change during phase transition [15] -Non-toxicity [29] -In sorption processes, it can be paired with different refrigerants (water, ammonia, methylamine, methanol, ethanol: see Fig. 1) [30], allowing various applications at various operation conditions -Low or moderate temperature operating range [31] However, this material exhibits some undesirable behaviour:…”

Section: Introductionmentioning

confidence: 99%

“…The pH of melted CaCl 2 $6H 2 O has been reported to be 6 [28]. Corrosion data of the calcium chloride aqueous solution for some materials can be found in Table 4.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the stainless steel 304 is resistant to calcium chloride aqueous solution when the mass fraction is at about 10 wt% and when the mass fraction is about 28 wt%, the corrosion is about 0.003 mm year À1 at 79 C [40]. Further corrosion data on CaCl 2 $6H 2 O have been reported by Cabeza et al [28]. The study indicates that CaCl 2 $6H 2 O can be used in a metal container of brass and copper for long term service.…”

Section: Introductionmentioning

confidence: 99%

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A review on the use of calcium chloride in applied thermal engineering

N’Tsoukpoe¹,

Rammelberg²,

Fopah-Lele³

et al. 2015

Applied Thermal Engineering

113

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Section: Corrosionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The pH of melted CaCl 2 $6H 2 O has been reported to be 6 [28]. Corrosion data of the calcium chloride aqueous solution for some materials can be found in Table 4.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A review on the use of calcium chloride in applied thermal engineering

N’Tsoukpoe¹,

Rammelberg²,

Fopah-Lele³

et al. 2015

Applied Thermal Engineering

113

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“…The main problems with salt hydrates are their lower thermal stability [101,102], chemical instability [95], corrosion to metals [102,103], incongruent melting [101] and sub-cooling below the solidification temperature [103]. The incongruence can be solved by mechanical stirring [104], using excess water to prevent forming a supersaturated solution from melted crystals [105] and modification of their chemical composition [106,107].…”

Section: Salt Hydratesmentioning

confidence: 99%

Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics

2016

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Phase change materials (PCMs) have been identified as potential candidates for building energy optimization by increasing the thermal mass of buildings. The increased thermal mass results in a drop in the cooling/heating loads, thus decreasing the energy demand in buildings. However, direct incorporation of PCMs into building elements undermines their structural performance, thereby posing a challenge for building integrity. In order to retain/improve building structural performance, as well as improving energy performance, micro-encapsulated PCMs are integrated into building materials. The integration of microencapsulation PCMs into building materials solves the PCM leakage problem and assures a good bond with building materials to achieve better structural performance. The aim of this article is to identify the optimum micro-encapsulation methods and materials for improving the energy, structural and safety performance of buildings. The article reviews the characteristics of micro-encapsulated PCMs relevant to building integration, focusing on safety rating, structural implications, and energy performance. The article uncovers the optimum combinations of the shell (encapsulant) and core (PCM) materials along with encapsulation methods by evaluating their merits and demerits.

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PCMStorage

Cabeza

Fernández

Barreneche

et al. 2015

Handbook of Clean Energy Systems

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Since the nineteenth century, a systematic study of heat storage systems through latent heat using phase‐change materials ( PCM s) has been carried out. This article contains the most important and useful information about PCMs, system design and its applications, and advances that PCMs have undertaken today. The information related to the classification of PCM s and what properties must have a material to be considered as a PCM are presented. Owing to the loss by evaporation and to prevent leakage of PCM s, it is necessary to encapsulate it; therefore, a review of the methods of encapsulation is done, emphasizing microencapsulation: chemical, physicochemical and physicomechanical processes, and shape‐stabilized methods. PCM storage systems can be applied to use of latent heat for thermal protection or inertia or to store a big amount of energy in a small temperature range. In this article, depending on the application and the energy and power needs of PCM storage systems, the requirements, design, and methodologies are reviewed. Many applications of PCMs can be found. In this work, a detailed review of various applications such as electronic devices, food and medicine protection, clothing, buildings, and PCM s in concentrated solar power plants and in greenhouses is presented. In addition, implementation of latent heat energy storage in waste heat recovery systems and transportation of energy are mentioned. Few papers with economic evaluation of systems integrating PCM s are reviewed.

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Middle term immersion corrosion tests on metal-salt hydrate pairs used for latent heat storage in the 32 to 36°C temperature range

Cited by 61 publications

References 1 publication

A review on the use of calcium chloride in applied thermal engineering

A review on the use of calcium chloride in applied thermal engineering

Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics

PCMStorage

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