Assessment of thermal performance of PCM in latent heat storage system for different applications

Abu‐Hamdeh, Nidal H.; Alnefaie, Khaled A.

doi:10.1016/j.solener.2018.11.035

Cited by 61 publications

(20 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to this concern, researchers are focusing on the utilization of renewable energy resources because of their sustainability and eco‐friendly nature. Among all the renewable energy resources, solar energy has received much attention in various applications, that is, water and space heating, power generation, solar desalination, solar drying, solar chimney and solar thermal storage applications . The major problem associated with solar energy is its intermittency .…”

Section: Introductionmentioning

confidence: 99%

“…Among all the renewable energy resources, solar energy has received much attention in various applications, that is, water and space heating, power generation, solar desalination, solar drying, solar chimney and solar thermal storage applications. [1][2][3][4] The major problem associated with solar energy is its intermittency. 5 Solar thermal systems generate energy when sunshine is available and there is no energy generation during non-sunshine periods.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal performance of sensible and latent heat thermal energy storage systems

Suresh

Saini

2020

Int J Energy Res

View full text Add to dashboard Cite

Summary The thermal energy storage is an essential subsystem for solar thermal energy systems. Few experimental studies are available to compare the performance of sensible and latent thermal energy storage systems for the same storage configurations. The comparison can provide guidance in selecting the storage system for particular solar thermal applications. The present work focuses on the experimental investigation of sensible and latent thermal storage systems with different mass flow rates. Concrete spheres and paraffin‐encapsulated metal capsules having a uniform diameter of 38 mm were taken as the packing elements and air as a heat transfer fluid for both the storage systems. The performance characteristics of both the storage systems have been evaluated in terms of charging time, instantaneous/cumulative energy absorption and energy storage under different flow rate conditions. Thermal mass, conductivity and flow rate has a substantial impact on temperature difference in the storage system. The charging time and energy storage capacity of the sensible thermal storage system was found to be lesser than the latent thermal storage system for all the flow rates. Based on the study, it is recommended that the latent thermal storage system is preferable for higher energy storage capacity, while for better charging and medium storage capacities sensible storage may be a good option.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal performance of sensible and latent heat thermal energy storage systems

Suresh

Saini

2020

Int J Energy Res

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…In engineering applications, it is necessary to utilize isothermal or near isothermal phase transition properties of phase change materials (PCMs); in solar energy heat utilization, industrial waste heat recovery, building energy conservation, electronic components cooling, and different PCMs are required to meet different requirements. [1][2][3][4][5] Waqas et al 6 reviewed the economic viability of PV-PCM systems and concluded that overall payback period of the PV-PCM system is 12 to 15 years, and the payback period can be reduced by enhancing the benefits by collecting the absorbed heat from PCM and utilizing it for further applications. In practical application, the following requirements are put forward for PCMs: phase change temperature within the practical operating range, high latent heat storage, stable chemical and thermodynamic properties, nontoxic, environmentally friendly, low-cost and easy to obtain, small volume change during phase change, no undercooling.…”

mentioning

confidence: 99%

Preparation and characterization of urea/ammonia bromide composite phase change material

Liu

Zhang

et al. 2020

Int J Energy Res

View full text Add to dashboard Cite

Summary In order to find phase change materials that can be better applied in the field of solar collectors, the phase change heat storage properties of urea (U) and ammonium bromide (AB) were studied. The eutectic ratio of UAB was found by the Edison method, and different additives were added to UAB by dipping and mixing. The structure and property of the composites were characterized by X‐ray powder diffraction (XRD), scanning electron microscope (SEM), differential scanning calorimetry (DSC), and TG/TGA, respectively. The results showed that the eutectic ratio of UAB was 6:3; it was weakly acidic after melting not layered. When 6‐wt% EG and 1‐wt% nanometer titanium dioxide (TiO2) were added, the thermal conductivity of the material increased by 3.62 times; the thermal diffusivity was increased by 6.77 times. When the mass fraction of EG is between 1% and 6%, the larger the mass fraction of EG, the greater the thermal conductivity of the material. After 1000 cycles, the composite material performance was stable; at the same time, the used materials can be used as fertilizers to solve the problem of material pollution, which indicated that the prepared UAB/TiO2/EG composite PCMs had great application prospect in the field of solar collectors.

show abstract

“…Due to these features, PCMs gained a lot of attention and are being used in several applications viz. waste heat recovery, thermal management of electronics, heating/cooling in buildings, cold storages, solar space and water heating, solar cooking, etc. PCMs can be broadly classified as organic, inorganic, and eutectics …”

Section: Introductionmentioning

confidence: 99%

An image processing algorithm to estimate the melt fraction and energy storage of a PCM enclosed in a spherical capsule

et al. 2019

View full text Add to dashboard Cite

Summary The experimental investigation of the melting behavior of a phase change material (PCM) inside a spherical container is reported. PCM considered for the study is lauric acid whose melting point is about 43°C. Unconstrained melting experiments are carried out at two different temperatures, ie, at 60°C and 80°C. The initial temperature of the PCM is taken as 30°C. To carry out a detailed analysis of the heat transfer, the transient variations in the melt fraction and amount of energy stored are derived. In order to estimate the liquid/solid volumes, a novel image processing technique is developed. In this approach, a circle‐fitting algorithm is employed to obtain the amount of PCM melted inside a spherical container. The total instantaneous amount of heat transport to the PCM is measured with an uncertainty of about 6.1%. The results obtained by the introduced circle‐fitting algorithm have been compared qualitatively and quantitatively with the solid modeling method. The present technique could capture the asymmetric behavior of the solid PCM. The experimental findings show that the rate of melt fraction is high at the beginning of the experiment due to a larger area of contact between the spherical container and solid PCM. Further, parametric analysis has been performed and reported in terms of Fourier, Stefan, and Grashof numbers.

show abstract

Assessment of thermal performance of PCM in latent heat storage system for different applications

Cited by 61 publications

References 27 publications

Thermal performance of sensible and latent heat thermal energy storage systems

Thermal performance of sensible and latent heat thermal energy storage systems

Preparation and characterization of urea/ammonia bromide composite phase change material

An image processing algorithm to estimate the melt fraction and energy storage of a PCM enclosed in a spherical capsule

Contact Info

Product

Resources

About