Exergy transfer analysis of an aluminum holding furnace

被引：19

作者：

Acevedo, Luis ^{[1
]}

Uson, Sergio ^{[1
]}

Uche, Javier ^{[1
]}

机构：

[1] CIRCE Fdn, Zaragoza 50018, Spain

来源：

ENERGY CONVERSION AND MANAGEMENT | 2015年 / 89卷

关键词：

Holding furnace; Aluminum; Exergy transfer; Heat transfer; ELECTRIC-ARC FURNACE; ENTROPY GENERATION; ENERGY;

D O I：

10.1016/j.enconman.2014.10.021

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study presents the unsteady exergy transfer analysis of an aluminum holding furnace with new heating resistance scheme. This holding system consists of four multilayer refractory walls and one resistance heating system which is responsible of maintaining the appropriate aluminum temperature and composition for further casting. The purpose of this analysis is to understand and identify heat losses and irreversibilities of the holding process of an aluminum furnace by means of the First and Second Law of Thermodynamics. In this study, bi-dimensional temperature and exergy fields during heat and exergy transfer processes are presented. The exergy balance is completely computed for this system, obtaining: exergy transfer, exergy variation rate, and destroyed exergy rate. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：484 / 496

页数：13

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