Experiments on a lab scale TES unit using eutectic metal alloy as PCM

被引：19

作者：

Blanco-Rodriguez, P. ^{[1
]}

Rodriguez-Aseguinolaza, J. ^{[1
]}

Gil, A. ^{[1
]}

Risueno, E. ^{[1
]}

D'Aguanno, B. ^{[1
]}

Lorono, I. ^{[2
]}

Martin, L. ^{[3
]}

机构：

[1] CIC Energigune, Minano 01510, Alava, Spain

[2] Univ Basque Country, Escuela Tecn Super Naut & Maquinas Navales, Dept Ciencias & Tecn Nav Maquinas & Construcc Nav, Portugalete 48920, Vizcaya, Spain

[3] Univ Basque Country, Escuela Tecn Super Ingn, Dept Maquinas Motores Term, Bilbao 48013, Vizcaya, Spain

来源：

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014 | 2015年 / 69卷

关键词：

Latent heat storage; phase change material; eutectic alloy; direct steam generation; concentrated solar power; PHASE-CHANGE MATERIALS; LATENT-HEAT STORAGE; MUSHY REGION;

D O I：

10.1016/j.egypro.2015.03.087

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The behavior of a magnesium and zinc eutectic metal alloy used as thermal energy storage (TES) material is tested in a laboratory scale TES unit. The TES unit consists of two concentric tubes with the central tube surrounded by 67 kg of the metal alloy and two caps at both ends of the tube through which the heat transfer fluid (HTF) flows. Charging (melting) and discharging (solidification) processes of the eutectic metal alloy are performed using synthetic oil as the HTF. The experimental results are used to test the validity of the model via simulations performed with a computational fluid dynamics tool. The results corroborate that phase change materials with high thermal conductivity, such as eutectic metal alloys, are ideal for the evaporation process of water in direct steam generation applications due to the quasi-constant melting and solidification temperatures and to its high heat transfer capacity. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：769 / 778

页数：10

共 18 条

[1] Heat transfer efficient thermal energy storage for steam generation [J].