Topology optimization for heat transfer enhancement in Latent Heat Thermal Energy Storage

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Topology optimization for heat transfer enhancement in Latent Heat Thermal Energy Storage. / Pizzolato, Alberto; Sharma, Ashesh; Maute, Kurt; Sciacovelli, Adriano; Verda, Vittorio.

In: International Journal of Heat and Mass Transfer, Vol. 113, 10.2017, p. 875-888.

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Pizzolato, Alberto ; Sharma, Ashesh ; Maute, Kurt ; Sciacovelli, Adriano ; Verda, Vittorio. / Topology optimization for heat transfer enhancement in Latent Heat Thermal Energy Storage. In: International Journal of Heat and Mass Transfer. 2017 ; Vol. 113. pp. 875-888.

Bibtex

@article{23860e02c0f84c3e80458adb3da40457,
title = "Topology optimization for heat transfer enhancement in Latent Heat Thermal Energy Storage",
abstract = "Performance of a Latent Heat Thermal Energy Storage depends strongly on the spatial layout of high conductive material and phase change material. Previous design studies have explored a limited design space and have rarely taken advantage of any formal optimization approach. This paper presents a topology optimization framework of a Thermal Energy Storage system involving phase change. We solve the Stefan problem for solidification with a fixed grid finite element method based on the apparent heat capacity technique, while the topology optimization problem is formulated using a density-based method. This approach allows to identify design trends that have been rarely investigated in the past. Firstly, we explore the inherent trade-off between discharged energy and required time for complete discharge. We obtain very different designs and highly varying performances at selected Pareto points. Secondly, by comparing results obtained in two and three dimensions we observe that 3D designs allow superior performances by presenting features that are not apparent in 2D. Thirdly, we propose a formulation of the design problem that yields a nearly constant thermal power output during the entire discharge process. If the maximum discharge time is sufficiently large, the optimized design presents fins that are disconnected from the internal tube.",
keywords = "Heat transfer enhancement, Phase change material, Thermal Energy Storage, Topology optimization",
author = "Alberto Pizzolato and Ashesh Sharma and Kurt Maute and Adriano Sciacovelli and Vittorio Verda",
year = "2017",
month = oct,
doi = "10.1016/j.ijheatmasstransfer.2017.05.098",
language = "English",
volume = "113",
pages = "875--888",
journal = "International Journal of Heat and Mass Transfer",
issn = "0017-9310",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Topology optimization for heat transfer enhancement in Latent Heat Thermal Energy Storage

AU - Pizzolato, Alberto

AU - Sharma, Ashesh

AU - Maute, Kurt

AU - Sciacovelli, Adriano

AU - Verda, Vittorio

PY - 2017/10

Y1 - 2017/10

N2 - Performance of a Latent Heat Thermal Energy Storage depends strongly on the spatial layout of high conductive material and phase change material. Previous design studies have explored a limited design space and have rarely taken advantage of any formal optimization approach. This paper presents a topology optimization framework of a Thermal Energy Storage system involving phase change. We solve the Stefan problem for solidification with a fixed grid finite element method based on the apparent heat capacity technique, while the topology optimization problem is formulated using a density-based method. This approach allows to identify design trends that have been rarely investigated in the past. Firstly, we explore the inherent trade-off between discharged energy and required time for complete discharge. We obtain very different designs and highly varying performances at selected Pareto points. Secondly, by comparing results obtained in two and three dimensions we observe that 3D designs allow superior performances by presenting features that are not apparent in 2D. Thirdly, we propose a formulation of the design problem that yields a nearly constant thermal power output during the entire discharge process. If the maximum discharge time is sufficiently large, the optimized design presents fins that are disconnected from the internal tube.

AB - Performance of a Latent Heat Thermal Energy Storage depends strongly on the spatial layout of high conductive material and phase change material. Previous design studies have explored a limited design space and have rarely taken advantage of any formal optimization approach. This paper presents a topology optimization framework of a Thermal Energy Storage system involving phase change. We solve the Stefan problem for solidification with a fixed grid finite element method based on the apparent heat capacity technique, while the topology optimization problem is formulated using a density-based method. This approach allows to identify design trends that have been rarely investigated in the past. Firstly, we explore the inherent trade-off between discharged energy and required time for complete discharge. We obtain very different designs and highly varying performances at selected Pareto points. Secondly, by comparing results obtained in two and three dimensions we observe that 3D designs allow superior performances by presenting features that are not apparent in 2D. Thirdly, we propose a formulation of the design problem that yields a nearly constant thermal power output during the entire discharge process. If the maximum discharge time is sufficiently large, the optimized design presents fins that are disconnected from the internal tube.

KW - Heat transfer enhancement

KW - Phase change material

KW - Thermal Energy Storage

KW - Topology optimization

UR - http://www.scopus.com/inward/record.url?scp=85020690935&partnerID=8YFLogxK

U2 - 10.1016/j.ijheatmasstransfer.2017.05.098

DO - 10.1016/j.ijheatmasstransfer.2017.05.098

M3 - Article

AN - SCOPUS:85020690935

VL - 113

SP - 875

EP - 888

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

ER -