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Dr. Mahboobe Mahdavi
Mechanical Engineering Department, Gannon University

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Research Keywords & Expertise

0 Solar Energy
0 porous media
0 Heat pipes
0 Computational Fluid Dynamics
0 Thermal energy storage systems

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Preprint content
Published: 16 July 2021
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ACS Style

Mahboobe Mahdavi; Amir Faghri. Transient Performance of Heat Pipes Using Nanofluids. 2021, 1 .

AMA Style

Mahboobe Mahdavi, Amir Faghri. Transient Performance of Heat Pipes Using Nanofluids. . 2021; ():1.

Chicago/Turabian Style

Mahboobe Mahdavi; Amir Faghri. 2021. "Transient Performance of Heat Pipes Using Nanofluids." , no. : 1.

Preprint content
Published: 16 July 2021
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ACS Style

Addison Hockins; Samantha Moretti; Mahboobe Mahdavi; Saeed Tiari. Experimental and Numerical Study of a Latent Heat Thermal Energy Storage Unit Enhanced by Fins. 2021, 1 .

AMA Style

Addison Hockins, Samantha Moretti, Mahboobe Mahdavi, Saeed Tiari. Experimental and Numerical Study of a Latent Heat Thermal Energy Storage Unit Enhanced by Fins. . 2021; ():1.

Chicago/Turabian Style

Addison Hockins; Samantha Moretti; Mahboobe Mahdavi; Saeed Tiari. 2021. "Experimental and Numerical Study of a Latent Heat Thermal Energy Storage Unit Enhanced by Fins." , no. : 1.

Journal article
Published: 02 March 2021 in Sustainability
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A conical shell-tube design with non-uniform fins was addressed for phase change latent heat thermal energy storage (LHTES). The shell was filled with nano-enhanced phase change material (NePCM). The cone aspect ratio of the shell and the fins aspect ratio were adopted as the geometrical design parameters. The type and volume fraction of the nanoparticles were other design parameters. The investigated nanoparticles were alumina, graphite oxide, silver, and copper. The finite element method was employed to solve the natural convection flow and phase change thermal energy equations in the LHTES unit. The Taguchi optimization method was utilized to maximize the melting rate in the unit. Two cases of ascending and descending conical shells were investigated. The outcomes showed that the shell-aspect ratio and fin aspect ratio were the most important design parameters, followed by the type and concentration of nanoparticles. Both ascending and descending designs could lead to the same melting rate at their optimum design. The optimum design of LHTES could improve the melting rate by up to 18.5%. The optimum design for ascending (descending) design was a plain tube (a cone aspect ratio of 1.17) filled by 4.5% alumina-Bio-PCM (1.5% copper-Bio-PCM).

ACS Style

Mohammad Ghalambaz; S.A.M. Mehryan; Mahboobeh Mahdavi; Obai Younis; Mohammad Alim. Evaluation of the Melting Performance in a Conical Latent Heat Thermal Unit Having Variable Length Fins. Sustainability 2021, 13, 2667 .

AMA Style

Mohammad Ghalambaz, S.A.M. Mehryan, Mahboobeh Mahdavi, Obai Younis, Mohammad Alim. Evaluation of the Melting Performance in a Conical Latent Heat Thermal Unit Having Variable Length Fins. Sustainability. 2021; 13 (5):2667.

Chicago/Turabian Style

Mohammad Ghalambaz; S.A.M. Mehryan; Mahboobeh Mahdavi; Obai Younis; Mohammad Alim. 2021. "Evaluation of the Melting Performance in a Conical Latent Heat Thermal Unit Having Variable Length Fins." Sustainability 13, no. 5: 2667.

Journal article
Published: 11 December 2019 in Journal of Energy Storage
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The thermal analysis of melting and solidification processes of Rubitherm 55 in a vertical shell and tube based latent heat thermal storage unit is presented in this study. To resolve the low heat transfer rate issue within the phase change material due to its low thermal conductivity, hybrid enhancement methods are considered. Heat pipes are placed horizontally to act as a bridge between the heat transfer fluid and the phase changed material stored in the shell. In addition, nanoparticles with high thermal conductivity are added to the phase change material. Aluminum oxide, silver, copper and copper oxide are the nanoparticles used for this study. The effects of various parameters, such as the heat pipes quantity, nanoparticles type, and concentration are studied on the overall performance of the system. It was concluded that embedding heat pipes significantly decreases the melting and solidification times. It was also shown that increasing the nanoparticles concentration decreases the melting or solidification time as well as the stored or released energy per unit of mass. However, the significance of the effect of type of nanoparticles was dependent upon the quantity of the heat pipes in the storage unit.

ACS Style

Mahboobe Mahdavi; Saeed Tiari; Vivek Pawar. A numerical study on the combined effect of dispersed nanoparticles and embedded heat pipes on melting and solidification of a shell and tube latent heat thermal energy storage system. Journal of Energy Storage 2019, 27, 101086 .

AMA Style

Mahboobe Mahdavi, Saeed Tiari, Vivek Pawar. A numerical study on the combined effect of dispersed nanoparticles and embedded heat pipes on melting and solidification of a shell and tube latent heat thermal energy storage system. Journal of Energy Storage. 2019; 27 ():101086.

Chicago/Turabian Style

Mahboobe Mahdavi; Saeed Tiari; Vivek Pawar. 2019. "A numerical study on the combined effect of dispersed nanoparticles and embedded heat pipes on melting and solidification of a shell and tube latent heat thermal energy storage system." Journal of Energy Storage 27, no. : 101086.