The Impact of Additives on the Main Properties of Phase Change Materials

Radomska, Ewelina; Mika, Łukasz; Sztekler, Karol

doi:10.3390/en13123064

Cited by 21 publications

(6 citation statements)

References 110 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It happens that authors of numerical models carry out validation for a given design, but use a different PCM. Knowing how different the thermophysical properties of PCM [111,112] are and how complex the problem of determining the thermophysical properties of PCM [113] is, special attention should be paid to this issue.…”

Section: Discussionmentioning

confidence: 99%

Thermal Energy Storage with PCMs in Shell-and-Tube Units: A Review

Cieśliński

Fabrykiewicz

2023

Energies

View full text Add to dashboard Cite

The paper presents a survey of the experimental and numerical studies of shell-and-tube systems in which phase change material (PCM) is used. Due to the multitude of design solutions for shell-and-tube systems, the emphasis is placed on double-tube (DT), triplex-tube (TT), and multi-tube (MT) units. Additionally, only single-pass systems are considered. Particular attention is paid to the method of heat transfer intensification. The analysis of the research results begins with the classification of each of the three mentioned systems. The systems are divided according to the angle of inclination, the method of heat transfer enhancement (HTE), the flow direction of heat transfer fluid (HTF), and the arrangement of tubes in the bundle. Moreover, the simplified schemes of the particular research cases are proposed. Then, the works on each of the mentioned systems, i.e., DT, TT, and MT, are discussed chronologically. Finally, in the corresponding tables, details of the discussed cases are presented, such as geometric dimensions, and the type of PCM or HTF used. A novelty in the present work is the precise classification of PCM TESUs as DT, TTH, and MTH. In the literature, there is a lot of discretion in this regard. Second, the methods of heat transfer intensification in the presented PCM TESUs are listed and discussed. Third, unified schemes of design solutions for the discussed PCM TESUs are proposed. The review shows that development directions for shell-and-tube TESUs include systems with high conductivity fins of different shapes, heights, and spacing, several PCMs, and modified shells.

show abstract

Section: Discussionmentioning

confidence: 99%

Thermal Energy Storage with PCMs in Shell-and-Tube Units: A Review

Cieśliński

Fabrykiewicz

2023

Energies

View full text Add to dashboard Cite

show abstract

“…To improve the heat transfer conditions, modified fluids with different types of additives are used to obtain required thermodynamic parameters [64][65][66][67]. Aggregation of Nanoparticles in nanofluids results blocking of micro channels, decrease the thermal conductivity of nanofluids.…”

Section: Enhancing the Stabilization Of Nanofluidsmentioning

confidence: 99%

Mono Nanofluids: Review on Current Status, Challenges and Future Prospects

C¹,

Ndaliman²,

Ezedimbu³

et al. 2021

IJRIAS

View full text Add to dashboard Cite

Advancement in the area of technology, industrial application demands effective, efficient and successful heat transfer application. Nanofluids are proven potential heat transfer fluids with heighten thermo physical properties and heat transfer performance. In this paper, a comprehensive review on the current status, applications and challenges associated with the use of nanofluids have been evaluated and presented in the study. Authors also critically examined and identified research gaps for further research directions. The comprehensive study and assessment are essential to be carried out to ensure maxima utilization of nanofluid as new and potential heat transfer fluid.

show abstract

“…D e = kλ β pw cos θ (16) where k = 0.89 and it is a shape factor. The X-ray diffraction method was also used in the [35] in order to assess the crystallographic structure and phase composition of nanoadditives.…”

Section: Nanoparticle Size Analysismentioning

confidence: 99%

Efficient Stabilization of Mono and Hybrid Nanofluids

Wciślik

2020

Energies

View full text Add to dashboard Cite

Currently; the transfer of new technologies makes it necessary to also control heat transfer in different industrial processes—both in practical and research—applications. Not so long ago water and ethylene glycol were the most frequently used media in heat transfer. However, due to their relatively low thermal conductivity, they cannot provide the fast and effective heat transfer necessary in modern equipment. To improve the heat transfer rate different additives to the base liquid are sought, e.g., nanoadditives that create mono and hybrid nanofluids with very high thermal conductivity. The number of scientific studies and publications concerning hybrid nanofluids is growing, although they still represent a small percentage of all papers on nanofluids (in 2013 it was only 0.6%, and in 2017—ca. 3%). The most important point of this paper is to discuss different ways of stabilizing nanofluids, which seems to be one of the most challenging tasks in nanofluid treatment. Other future challenges concerning mono and hybrid nanofluids are also thoroughly discussed. Moreover, a quality assessment of nanofluid preparation is also presented. Thermal conductivity models are specified as well and new representative mono and hybrid nanofluids are proposed.

show abstract

The Impact of Additives on the Main Properties of Phase Change Materials

Cited by 21 publications

References 110 publications

Thermal Energy Storage with PCMs in Shell-and-Tube Units: A Review

Thermal Energy Storage with PCMs in Shell-and-Tube Units: A Review

Mono Nanofluids: Review on Current Status, Challenges and Future Prospects

Efficient Stabilization of Mono and Hybrid Nanofluids

Contact Info

Product

Resources

About