Heat transfer inside cooling system based on phase change material with alumina nanoparticles

Bondareva, Nadezhda S.; Buonomo, Bernardo; Manca, Oronzio; Sheremet, Mikhail A.

doi:10.1016/j.applthermaleng.2018.09.002

Cited by 108 publications

(18 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although PCMs are capable of storing/releasing a tremendous amount of energy on phase change, they are inherently very weak in terms of heat transfer. Thus, many researchers have tried to enhance the heat transfer characteristics of PCM by using fins [13]- [15] or porous media [16]- [18]. There are also number of studies that have utilized nanoparticles to enhance the heat transfer and phase change of PCMs [19]- [23].…”

Section: Takedownmentioning

confidence: 99%

Natural convective flow and heat transfer of Nano-Encapsulated Phase Change Materials (NEPCMs) in a cavity

Ghalambaz

Chamkha

Wen

2019

International Journal of Heat and Mass Transfer

290

View full text Add to dashboard Cite

show abstract

Section: Takedownmentioning

confidence: 99%

Natural convective flow and heat transfer of Nano-Encapsulated Phase Change Materials (NEPCMs) in a cavity

Ghalambaz

Chamkha

Wen

2019

International Journal of Heat and Mass Transfer

290

View full text Add to dashboard Cite

show abstract

“…Except for to integrated fins, researchers also tried to add nanoparticles to PCMs (Nano-PCMs) to increase their thermal conductivity [143][144][145][146], including some studies targeting on cooling efficiency of PV modules. Siahkamari et al [147] have proposed a novel PCM with CuO nanoparticles to enhance the cooling efficiency of PV modules.…”

Section: Mixed Nanoparticlesmentioning

confidence: 99%

A Review on Recent Development of Cooling Technologies for Photovoltaic Modules

et al. 2020

View full text Add to dashboard Cite

When converting solar energy to electricity, a big proportion of energy is not converted for electricity but for heating PV cells, resulting in increased cell temperature and reduced electrical efficiency. Many cooling technologies have been developed and used for PV modules to lower cell temperature and boost electric energy yield. However, little crucial review work was proposed to comment cooling technologies for PV modules. Therefore, this paper has provided a thorough review of the up-to-date development of existing cooling technologies for PV modules and given appropriate comments, comparisons and discussions. According to the ways or principles of cooling, existing cooling technologies have been classified as fluid medium cooling (air cooling, water cooling and nanofluids cooling), optimizing structural configuration cooling and phase change materials cooling.Potential influential factors and sub-methods were collected from the review work, and their contributions and impact have been discussed to guide future studies. Although most cooling technologies reviewed in this paper are matured, there are still problems need to be solved, such as the choice of cooling fluid and its usability for specific regions, the fouling accumulation and cleaning of enhanced heat exchangers with complex structures, the balance between cooling cost and net efficiency of PV modules, the cooling of circulating water in tropical areas and the freezing of circulating water in cold areas. To be advocated, due to efficient heat transfer and spectral filter characters, nanofluids can promote the effective matching of solar energy at both spectral and spatial scales to achieve orderly energy utilization.

show abstract

“…The primary defect of PCMs is their low conduction heat transfer coefficient, which increases the melting time and reduces the efficiency of the energy storage system. Accordingly, performance enhancement methods such as using different types of fins [6], using metal foams in PCMs [7], coil inserts [8] and using nanoparticles with high thermal conductivity [9][10][11] are developed to improve the efficiency of the thermal energy storage systems.…”

Section: Introductionmentioning

confidence: 99%

Improving the melting performance of PCM thermal energy storage with novel stepped fins

Nakhchi

Esfahani

2020

Journal of Energy Storage

110

View full text Add to dashboard Cite

Numerical investigation on latent heat thermal energy storage (LHTES) systems with phase change materials (PCMs) vertically heated from one side with novel stepped fins is presented.Transient numerical simulation by using the enthalpy-porosity method is performed to investigate the heat transfer rate and melting behaviors, while the natural convection is considered. To improve the PCM melting process, different upward and downward stepped fins with the step ratios (b/c) of 0.66, 1, 1.5, 2.33 and 4 are employed. The melt fraction and temperature contours by consideration the natural convection effects are presented. The results show that at the beginning of the melting process, the fins in the downward direction with b/c=0.66 improve the PCM melting rate than the other cases, as the part of the heat is well transferred to the bottom of container along the fins and heat is trapped between the heated wall and the fins. The results show that the melting process in all of the tested stepped fins is faster than the conventional horizontal fins. The results show that by using downward stepped fins (b/c=0.4) instead of conventional horizontal fins, the melting process could be enhanced up to 56.3% at t=800sec and 65.5% at t=3600sec.

show abstract

Heat transfer inside cooling system based on phase change material with alumina nanoparticles

Cited by 108 publications

References 28 publications

Natural convective flow and heat transfer of Nano-Encapsulated Phase Change Materials (NEPCMs) in a cavity

Natural convective flow and heat transfer of Nano-Encapsulated Phase Change Materials (NEPCMs) in a cavity

A Review on Recent Development of Cooling Technologies for Photovoltaic Modules

Improving the melting performance of PCM thermal energy storage with novel stepped fins

Contact Info

Product

Resources

About