Using the Analytic Hierarchy Process (AHP) method for selection of phase change materials for solar energy storage applications

Amer, Ahmed E.; Rahmani, Khaled; Лебедев, В. А.

doi:10.1088/1742-6596/1614/1/012022

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…As regards selection methods, many of them require a subjective set of selection criteria. Thus, for instance, to apply the analytic hierarchy process for PCM selection, one needs to construct a selection matrix based on guesswork, that is, the relative importance of selection criteria is set by a human operator by assigning values from 0 to 9 and, in addition, taking into account even such parameters as the PCM price and availability on the market 14 .…”

Section: Selection Methods Based On the Rényi Entropymentioning

confidence: 99%

New library of phase-change materials with their selection by the Rényi entropy method

Kulish

Aslfattahi

Schmirler

et al. 2023

Sci Rep

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The secret to the successful and widespread deployment of solar energy for thermal applications is effective and affordable heat storage. The ability to provide a high energy storage density and the capacity to store heat at a constant temperature corresponding to the phase transition temperature of the heat storage material (phase-change material or PCM) make latent heat storage one of the most alluring methods of heat storage. Today, it can be challenging to obtain all the published data on PCM qualities, including relevant non-thermodynamic properties in addition to thermodynamic ones. The developed new PCM library contains various types of PCMs which possess broad range of operation temperatures. This new library consists of 500 substances along with nine associated properties such as phase change temperature, solidification temperature, maximum operation temperature, density, latent heat and specific heat capacity, thermal conductivity, cycleability and ignition temperature. Furthermore, a new PCM selection method, based on calculating the Rényi entropy for a given set of selection criteria, has been proposed. The newly developed selection method requires no subjective judgements. The idea of the method is inspired by earlier applications of fractal analysis methods in many areas of research.

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Section: Selection Methods Based On the Rényi Entropymentioning

confidence: 99%

New library of phase-change materials with their selection by the Rényi entropy method

Kulish

Aslfattahi

Schmirler

et al. 2023

Sci Rep

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“…Careful selection of the appropriate PCM is essential for the TESS. Analytic hierarchy process (AHP) procedure is used by several studies in the field of TESSs for selecting the appropriate PCM 21‐23 . The S‐T configuration is intensively studied in latent heat thermal energy storage (LHTES).…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of an accumulator unit using phase change material with a fixed volume of fins

2021

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Summary Melting rate enhancement inside an accumulator unit for a phase change material (PCM) has been numerically investigated in a shell‐and‐tube (S‐T) arrangement that incorporates the circular type of fins, considering a fixed total volume of fins. The number of fins was chosen as the design parameter. The heat transfer fluid (HTF) was chosen as water that flows through the selected accumulator unit during the process of melting. The computational fluid dynamics (CFD) technique has been utilized for the simulation of the accumulator using ANSYS FLUENT software by considering a two‐dimensional axisymmetric cylindrical accumulator in a vertical direction. During the melting process, two heat transfer mechanisms were considered, namely, conduction and convection. The HTF flow was 5 L/min with a flow temperature of 358 K for charging. The predicted complete melting time of the PCM decreased by 53.125%, 65.625%, 71.875%, and 71.875% for fins numbering 6, 18, 30, and 36, respectively, compared with the S‐T without fins where it took approximately 480 minutes to melt completely. The optimal fin parameters are recommended in this study as follows: number of fins N = 30, thickness t/d = 0.01858, interval d/L = 0.03227, and aspect ratio t/h = 0.015. These recommended values maximize the thermal performance of the selected accumulator unit. The effects of changing the flow rate of the heat transfer fluid and its inlet temperature have been found to be significant on the PCM melting rate. The total melting time of the PCM is found to be reduced by about 57% when the inlet flow temperature is increased from 343 to 358 K. Moreover, the total melting time reduces by about 70.5% with an increase in the heat transfer fluid mass flow rate from 0.15 to 5 L/min. Furthermore, increasing the HTF flow rate from 0.15 to 5 L/min leads to a reduction of about 61.1% in the predicted total time that is required for solidification. The temperature differences for low flow rates are greater than those for high flow rates. The novelty of this study is in investigating the performance at a fixed total volume of fins.

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Selection of a phase change material for energy storage by multi-criteria decision method regarding the thermal comfort in a vehicle

Nicolalde

Cabrera

Martínez-Gómez

et al. 2022

Journal of Energy Storage

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Using the Analytic Hierarchy Process (AHP) method for selection of phase change materials for solar energy storage applications

Cited by 4 publications

References 15 publications

New library of phase-change materials with their selection by the Rényi entropy method

New library of phase-change materials with their selection by the Rényi entropy method

Thermal performance of an accumulator unit using phase change material with a fixed volume of fins

Selection of a phase change material for energy storage by multi-criteria decision method regarding the thermal comfort in a vehicle

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