Energy balance and cogeneration for a cement plant

被引：137

作者：

Khurana, S ^{[1
]}

Banerjee, R ^{[1
]}

Gaitonde, U ^{[1
]}

机构：

[1] Indian Inst Technol, Indian Inst Technol Energy Syst Engn, Bombay 400076, Maharashtra, India

来源：

APPLIED THERMAL ENGINEERING | 2002年 / 22卷 / 05期

关键词：

cement; energy balance; waste heat recovery; cogeneration;

D O I：

10.1016/S1359-4311(01)00128-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The cement industry is an energy intensive industry consuming about 4 GJ per tonne of cement produced. A thermodynamic analysis for cogeneration using the waste heat streams is not easily available. Data from a working 1 Mt per annum plant in India is used to obtain an energy balance for the system and a Sankey diagram is drawn. It is found that about 35% of the input energy is being lost with the waste heat streams. A steam cycle is selected to recover the heat from the streams using a waste heat recovery steam generator and it is estimated that about 4.4 MW of electricity can be generated. This represents about 30% of the electricity requirement of the plant and a 10% improvement in the primary energy efficiency of the plant. The payback period for the system is found to be within two years. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：485 / 494

页数：10