Heat transfer enhancement in water when used as PCM in thermal energy storage

Cabeza, Luisa F.; Mehling, Harald; Hiebler, Stefan; Ziegler, Felix

doi:10.1016/s1359-4311(02)00035-2

Cited by 253 publications

(83 citation statements)

References 14 publications

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“…Furthermore, the influence of circular fin quantity and diameter have been examined by Erek et al [25] with evenly distributed fins, which is the most common way of fin placement. Since the fin material is only relevant if highly conductive material is applied [26], fins can be the main costing of a thermal energy storage. Therefore, an increase of the number of fins is not economically viable in many cases.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Shell-and-Tube Type Latent Thermal Energy Storage Performance with Different Arrangements of Circular Fins

2017

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Latent thermal energy storage (LTS) systems are versatile due to their high-energy storage density within a small temperature range. In shell-and-tube type storage systems fins can be used in order to achieve enhanced charging and discharging power. Typically, circular fins are evenly distributed over the length of the heat exchanger pipe. However, it is yet to be proven that this allocation is the most suitable for every kind of system and application. Consequently, within this paper, a simulation model was developed in order to examine the effect of different fin distributions on the performance of shell-and-tube type latent thermal storage units at discharge. The model was set up in MATLAB Simulink R2015b (The MathWorks, Inc., Natick, MA, USA) based on the enthalpy method and validated by a reference model designed in ANSYS Fluent 15.0 (ANSYS, Inc., Canonsburg, PA, USA). The fin density of the heat exchanger pipe was increased towards the pipe outlet. This concentration of fins was implemented linearly, exponentially or suddenly with the total number of fins remaining constant during the variation of fin allocations. Results show that there is an influence of fin allocation on storage performance. However, the average storage performance at total discharge only increased by three percent with the best allocation compared to an equidistant arrangement.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Shell-and-Tube Type Latent Thermal Energy Storage Performance with Different Arrangements of Circular Fins

2017

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“…Different approaches have been proposed to overcome this problem: use of metal thin strips (Hoogendoorn and Bart, 1992), thin walled rings (Velraj et al 1999), porous metals (Weaver and Viskanta, 1986) porous graphite (Tayeb, 1996), metal foam matrix (Calmidi and Mahajan, 1999) and carbon fibers (Fukai et al 2000 and are among the common techniques used to enhance the effective thermal conductivity of PCMs. The presence of the nanoparticles in the PCM increases significantly the effective thermal conductivity of the fluid and consequently enhances the heat transfer characteristics (Cabeza et al , 2002;Mettawee, and Assassa, 2007;Khodadadi, and Hosseinizadeh, 2007;Zeng et al 2007;Pincemin et al, 2008;Kim and Drzal, 2009;Ho and Gao, 2009). …”

Section: Introductionmentioning

confidence: 99%

THERMAL PERFORMANCE ENHANCEMENT OF PARAFFIN WAX WITH AL2O3 AND CuO NANOPARTICLES – A NUMERICAL STUDY

Amirtham¹,

Sasmito²,

Mujumdar³

2012

Frontiers in Heat and Mass Transfer

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The heat transfer enhancement of paraffin wax, a cheap and widely used latent heat thermal energy storage material, using nanoparticles is investigated. The effects of nanoparticle volume fraction on both the melting and solidification rates of paraffin wax are analysed and compared for Al 2 O 3 and CuO nanoparticles. Present results show that dispersing nanoparticles in smaller volumetric fractions increase the heat transfer rate. The enhancement in thermal performance of paraffin wax is greater for Al 2 O 3 compared with that for CuO nanoparticles. .

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“…Cabeza concluded that the PCM-graphite composite results in better heat transfer efficiency when compared with other techniques like addition of stainless steel and copper pieces [68]. PCM-graphite composite requires only half of the charging time of the pure PCM [69].…”

Section: Required Characteristics Of Pcmmentioning

confidence: 99%

An Organic Composite Phase Change Material for Hot Food Storage, A Review

al.¹

2018

IJMPERD

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The paper reviews about the implementation of Latent Heat Storage System in the food storage techniques, due to its high-energy density and isothermal nature. It helps in sustaining the temperature of the hot food for a long time, thus preventing the pathogen growth. Adverse effects are faced by the children due to the pathogen growth in the food.Reasons for the cause of foodborne illness in the children were discussed. The characteristics of the phase change material (PCM) for the latent heat storage was described in detail. Finally, preparation and commercial feasibility of the PCM were studied and presented.

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Heat transfer enhancement in water when used as PCM in thermal energy storage

Cited by 253 publications

References 14 publications

Numerical Analysis of Shell-and-Tube Type Latent Thermal Energy Storage Performance with Different Arrangements of Circular Fins

Numerical Analysis of Shell-and-Tube Type Latent Thermal Energy Storage Performance with Different Arrangements of Circular Fins

THERMAL PERFORMANCE ENHANCEMENT OF PARAFFIN WAX WITH AL2O3 AND CuO NANOPARTICLES – A NUMERICAL STUDY

An Organic Composite Phase Change Material for Hot Food Storage, A Review

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