Thermal behaviour study of phase change material of a latent heat storage system

Saikrishnan, V.; Karthikeyan, A.

doi:10.1016/j.matpr.2016.04.170

Cited by 16 publications

(7 citation statements)

References 7 publications

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“…This also shows close agreement with variations in bulk density of bischofite, an industrial by-product studied by Ushak et al [24] to be used as a PCM. Saikrishnan et al [25] also have stated that bulk density is an essential characteristic of PCM and should be as high as possible for its use as a PCM. Samples analyzed were observed to have differences in densities on melting varying by nearly 20 to 40 kg/m 3 .…”

Section: Bulk Densitymentioning

confidence: 99%

“…The highest thermal conductivity was observed for PW 1 (0.19 W/ m 2 K), whereas minimum was observed for sample PW 3 , i.e., 0.06 W/m 2 K. Maximum thermal conductivity exhibited by PW 1 makes it suitable for the use in energy storage for solar applications. Saikrishnan et al [25] have also reported that material should possess high thermal conductivity to be good candidate for latent heat energy storage. Wood resin was rejected from DSC and T-history analysis presented in Table 8, since its latent heat value obtained shows irregular behavior and hence cannot be used for solar thermal storage applications.…”

Section: Thermal Conductivitymentioning

confidence: 99%

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Selection of phase change material for solar thermal storage application: a comparative study

Babar

Arora

Nema

2019

J Braz. Soc. Mech. Sci. Eng.

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The study of five paraffin waxes and wood resin was carried out to investigate their thermo-physical properties. The investigation aimed at selection of a phase change material (PCM), for its potential use as a thermal energy reservoir (TER) in a fabricated solar dryer. Differential scanning calorimeter was used to determine the melting point, solidification point, latent heat of fusion and solidification of these PCM. The T-history analysis was carried out to determine the effective thermal conductivity and specific heat in liquid and solid states. Bulk density of these PCMs was determined using standard pycnometer method. A comparative analysis was done for the selection, and PW 1 was selected among the paraffin waxes, while wood resin was rejected. The selected PCM was used in the flat plate collector of solar dryer to identify the thermal zones and to validate its capability as a TER. Maximum temperature achieved at outlet of flat plate collector was 50 °C. The temperature profile built in different zones was determined with and without using PCM. It was found that after 18:00 IST evening, the average flat plate collector chamber temperature with PCM PW 1 was found to be 23.5% higher than that without using PCM.

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Section: Bulk Densitymentioning

confidence: 99%

Section: Thermal Conductivitymentioning

confidence: 99%

Selection of phase change material for solar thermal storage application: a comparative study

Babar

Arora

Nema

2019

J Braz. Soc. Mech. Sci. Eng.

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“…Anuar Sharif et al [22] have reviewed the application of a PCM in domestic hot water systems in which the PCM is inserted at various positions in a solar flat plate collector below the tubes, covering half the perimeter of the tubes, while immersing the tubes in the PCM with and without reflectors. [23, 24 & 25] Abdul Jabbar N et al [26] have compared the thermal performance of a DHW (Domestic Hot Water) system with a PCM and the same with a conventional DHW system.…”

Section: Introductionmentioning

confidence: 99%

Harnessing and Storing Solar Thermal Energy Using Phase Change Material (Pcm) in a Small Flat Plate Collector

Gurupatham

Manikandan

Fahad

2020

Journal of Thermal Engineering

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Recently, the initiative to bring down the continuous increase in the level of greenhouse gas emissions has widely spread in many countries not only because of the stringent emission norms but also the rising fuel prices which have led to utilize renewable energy sources, more. When it comes to the different forms of renewable energy available, solar energy is considered to be the best option due to its abundant availability in nature. Still, there are a few hurdles to first get over when dealing with solar energy. For instance, the lack of effective technology has caused solar energy to be a costly endeavor and there are issues involved in the process of conversion of solar energy into useful forms of energy. Due to the recent developments in technology, the application of phase change materials (PCM) has become an attractive method to store solar energy. Among various sugar alcohols, Erythritol is the one which is higher in latent heat, more thermally stable, non-toxic, inexpensive, and easily available. In this paper, the phase change material, Erythritol (C4H8O4) is utilized to harness the solar energy and a novel method of transporting the solar energy from the location it was harnessed to a location where it can be utilized is also shown. The variation in the rate at which the solar energy is harnessed is also shown on five different days when the direct solar radiation was high and low on the location of experiment.

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“…This is mainly due to the reason that the latent heat‐based PCMs have a high energy density . Further, such TES systems can store the available/surplus energy as a combination of sensible and latent heat, and can be used later when needed . The establishment of any such energy storage system requires a detailed analysis of the associated physical phenomenon in the PCM.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] Further, such TES systems can store the available/surplus energy as a combination of sensible and latent heat, and can be used later when needed. 7,8 The establishment of any such energy storage system requires a detailed analysis of the associated physical phenomenon in the PCM. Hence, the motivation of the current work arose from the need of obtaining physical insights of PCM's phase change to effective design and develop the latent heat-based TES system.…”

Section: Introductionmentioning

confidence: 99%

Real‐time experimental study and numerical simulation of phase change material during the discharge stage: Thermo‐fluidic behavior, solidification morphology, and energy content

Soni

Kumar

et al. 2019

Energy Storage

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This article experimentally and numerically investigates solidification behavior of a phase change material during the discharge stage. Particle image velocimetry technique is used to measure the real‐time flow field. The visualization and measurement of solidification characteristics (solidifying interface, mushy zone, solidifying morphology—columnar, and equiaxed dendrites, etc.) are carried out using a high‐resolution camera. Transient temperature at strategic locations is measured using instrumented thermocouples. Experimental results observe multiple rotating vortices and thermal plumes due to Rayleigh‐Bénard convection currents. An interesting phenomenon of detachment of dendrite flakes from the developing mushy zone is observed, which provides several nucleation sites for the initiation of the solidification and leads to heat transfer enhancement. Numerical simulations are performed using a one‐domain continuum model. A comprehensive description of the local and the global scale behavior of solidified fraction, thermal field, and flow field is provided, and their role on energy discharge is established. The energy discharge rate from the system is quantitatively computed using thermal performance indicators, such as latent energy, total (sensible + latent) extracted specific energy, and specific power.

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Thermal behaviour study of phase change material of a latent heat storage system

Cited by 16 publications

References 7 publications

Selection of phase change material for solar thermal storage application: a comparative study

Selection of phase change material for solar thermal storage application: a comparative study

Harnessing and Storing Solar Thermal Energy Using Phase Change Material (Pcm) in a Small Flat Plate Collector

Real‐time experimental study and numerical simulation of phase change material during the discharge stage: Thermo‐fluidic behavior, solidification morphology, and energy content

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