Heat transfer—a review of 1994 literature

“…Numerous studies related to the heat transfer through melting or solidification has been published in the last decade. A detailed review about latent energy storage system is provided by Eckert et al (1997), by Zalba et al (2003), by Saito (2002) and by Din-cer and Rosen (2002). Saito explained the concept of the cold thermal energy storage and defined their types.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of thermal energy storage with a finned tube

Erek

İlken

Acar

2005

Int. J. Energy Res.

156

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SUMMARYA latent heat thermal energy storage system using a phase change material (PCM) is an efficient way of storing or releasing a large amount of heat during melting or solidification. It has been determined that the shell-and-tube type heat exchanger is the most promising device as a latent heat system that requires high efficiency for a minimum volume. In this type of heat exchanger, the PCM fills the annular shell space around the finned tube while the heat transfer fluid flows within the tube.One of the methods used for increasing the rate of energy storage is to increase the heat transfer surface area by employing finned surfaces. In this study, energy storage by phase change around a radially finned tube is investigated numerically and experimentally. The solution of the system consists of the solving governing equations for the heat transfer fluid (HTF), pipe wall and phase change material. Numerical simulations are performed to investigate the effect of several fin parameters (fin spacing and fin diameter) and flow parameter (Re number and inlet temperature of HTF) and compare with experimental results. The effect of each variable on energy storage and amount of solidification are presented graphically.

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“…A number of studies have been conducted to analyze the thermal behavior of latent heat storage systems. Some detailed reviews and technical details about latent energy storage system have been provided elsewhere [1][2][3][4]. Many researchers suggest that the shell-andtube type heat exchanger is the most promising device as a latent heat storage system that requires high efficiency for a minimum volume.…”

Section: Introductionmentioning

confidence: 99%

A New Approach to Energy and Exergy Analyses of Latent Heat Storage Unit

Erek

Dinçer

2009

Heat Transfer Engineering

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In this article, a new approach for energy and exergy efficiencies and effectiveness of latent heat storage systems is developed and applied to a shell-and-tube type latent heat storage system for its charging process. First, a numerical model is introduced to study the heat transfer and thermodynamic parameters and aspects (shell radius and pipe length, Reynolds number, inlet temperature of heat transfer fluid [HTF], etc.), and solved through the governing equations for HTF, pipe wall, and phase change material. Second, some extensive parametric studies are conducted to investigate how the solidification fronts, stored heat, heat transfer rates, entropy generation number, and both energy and exergy efficiencies change with time, particularly in the dimensionless form as the Fourier number. Third, both energetic and exergetic effectiveness concepts are newly developed and applied to a latent heat storage system. The results show that energy and exergy efficiency and effectiveness concepts appear to be significant tools for assessment and optimization of the thermal energy storage systems.

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Heat transfer—a review of 1994 literature

Cited by 18 publications

References 1,532 publications

An approach to entropy analysis of a latent heat storage module

An approach to entropy analysis of a latent heat storage module

Experimental and numerical investigation of thermal energy storage with a finned tube

A New Approach to Energy and Exergy Analyses of Latent Heat Storage Unit

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