A non-parametric method for estimating enthalpy-temperature functions of shape-stabilized phase change materials

被引：19

作者：

del Barrio, Elena Palomo ^{[1
]}

Dauvergne, Jean-Luc ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, Lab TREFLE, TREFLE Site ENSAM,UMR 8508, F-33405 Talence, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2011年 / 54卷 / 5-6期

关键词：

PCM; Enthalpy-temperature functions; Inverse methods; THERMAL-ENERGY STORAGE; T-HISTORY METHOD; GRAPHITE MATERIALS; SOLID MATERIALS; CONDUCTIVITY; HEAT; DIFFUSIVITY; KNO3/NANO3; FUSION;

D O I：

10.1016/j.ijheatmasstransfer.2010.10.025

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A method for thermodynamic characterization of shape-stabilized phase change materials (PCM) based on one-single sample and one-single experiment has been proposed. The simplicity of the experimental device is comparable to that of the T-History method. However, instead of simple energy balances as in T-History method, a numerical heat transfer model is used to retrieve the whole set of parameters/functions characterizing the PCM from temperature measurements at one-single point within the PCM. An efficient inversion technique has been proposed for that. Its most striking feature is that it allows non-parametric identification of the enthalpy-temperature function in an easy way. Such a function is retrieved by solving a problem of nonhomogeneous heat source term estimation by inversion of a linear heat conduction model. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1268 / 1277

页数：10

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