Thermal performance of a greenhouse with a phase change material north wall

Berroug, F.; Lakhal, El Khadir; Omari, Mohamed El; Faraji, Mohammad; Qarnia, Hamid El

doi:10.1016/j.enbuild.2011.07.020

Cited by 225 publications

(63 citation statements)

References 21 publications

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“…-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%

“…-Subsequently, calcium chloride is one of the cheapest [13,16,9] (0.3e0.4 USD kg À1 [16e20], 2 USD kg À1 [15]), even the cheapest commercially available salt hydrate, depending on the application. This aspect makes it very attractive for many applications in particular those which need large quantities such as thermal storage applications.…”

Section: Introductionmentioning

confidence: 99%

“…The interest for calcium chloride lies in the following nonexhaustive features and advantages, depending on the application: -Easy availability [13] because large quantities are produced as by-product of industrial processes [14,15]. -Subsequently, calcium chloride is one of the cheapest [13,16,9] (0.3e0.4 USD kg À1 [16e20], 2 USD kg À1 [15]), even the cheapest commercially available salt hydrate, depending on the application.…”

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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

N’Tsoukpoe¹,

Rammelberg²,

Fopah-Lele³

et al. 2015

Applied Thermal Engineering

113

View full text Add to dashboard Cite

“…Salt hydrates have desirable characteristics of a higher density of 1640 kg/m 3 [90]; negligible (less than 1%) volume changes during phase change [91,92]; cheaper availability with an average cost of $0.13-0.20/kg for calcium chloride [93,94]; higher heat of fusion of up to 296 kJ/kg [95]; higher thermal conductivity of 0.6 W/m·K [96]; and favorable transition temperatures in the range of 25 • C-34 • C [97]. The salt hydrates are abundantly available [98] in large quantities as by-products of industrial processes [95,99] and as waste co-products in many chemical processes including the production of soda ash [100].…”

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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“…Zhang et al [8] presented the development of a thermally enhanced wall that reduces peak airconditioning demand in residential buildings. Berroug et al [9] analyzed the thermal performance of a north wall made with hydrate salt phase change material as a storage medium in east-west oriented greenhouse. A numerical study has been developed to investigate the impact of the PCM on greenhouse temperature.…”

Section: Introductionmentioning

confidence: 99%

Thermal Control Of Building Using Latent Heat Storage South Wall

Faraji¹,

Alami²,

Najam³

2014

J. Math. Computer Sci.

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The aim of the present work is to study the thermal performance of a composite wall used for heating management of building. The solar energy absorbed by the wall is stored in a phase change material (PCM). The advantage of using this heating strategy is that PCMs are able to melt and absorb a high amount of diurnal solar radiations and release it to the room during the night to provide passive nocturnal heating. A one-dimensional mathematical model was developed in order to analyze and optimize the proposed latent heat storage wall. Numerical investigations were conducted in order to examine the effects of the PCM position and the PCM material properties on the thermal behavior of the proposed wall. It was found that, when the PCM layer is closer to the inner face of the wall, thermal comfort conditions are considerably improved compared to a concrete wall without PCM. The good PCM choice is satisfied when the material melts completely before the sunset and re-solidifies completely before the sunrise. Phase change materials that have a better thermal conductivity lead to a significant reduction of the building energy consumption.

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Thermal performance of a greenhouse with a phase change material north wall

Cited by 225 publications

References 21 publications

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

Thermal Control Of Building Using Latent Heat Storage South Wall

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