An energy efficiency analysis of an industrial reheating furnace and an implementation of efficiency enhancements methods

Rapid consumption of energy resources, increasing energy needs, the competitive conditions in the industry and environmental concerns, all of those call for efficient use of energy resources. In this context, energy efficiency studies were carried out in a rolling mill of a reheating furnace of an i...

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Bibliographic Details
Published in:Energy exploration & exploitation 2014-12, Vol.32 (6), p.989-1003
Main Authors: Kilinç, Enes, Durmuş, Kaya, Kiliç, Fatma Çanka, Eyidoğan, Muharrem, Özkaymak, Mehmet, Taylan, Osman, Pedrycz, Witold
Format: Article
Language:English
Subjects:
Analyzers
Applied sciences
Blast furnaces
Combustion
Devices using thermal energy
Energy
Energy conservation
Energy consumption
Energy efficiency
Energy management
Energy use
Energy value
Energy. Thermal use of fuels
Exact sciences and technology
Flow velocity
Flue gases
Furnaces
Heating furnaces
Industrial efficiency
Rational use of energy: conservation and recovery of energy
Recuperators
Regenerative heat exchangers
Rolling mills
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Summary:Rapid consumption of energy resources, increasing energy needs, the competitive conditions in the industry and environmental concerns, all of those call for efficient use of energy resources. In this context, energy efficiency studies were carried out in a rolling mill of a reheating furnace of an integrated industrial enterprise. In studies, some important efficiency measurements were conducted, mass and energy balances were established by using the results of these measurements and the operating data of the plant along with energy saving opportunities, with the specified amounts and repayment periods were determined. Energy conservation studies that can be realized in the reheating furnace were considered including operation of the reheating furnace with the pertinent excess air coefficient, compensation of the air leakage losses in the recuperator and establishment of the economizer in the furnace. As a result of these investigations some saving opportunities were determined and a new recuperator, economizer and gas analyzer were installed in the reheating furnace leading in total of 2,913,924 kcal/h of energy savings. After the implementation of energy saving measures, reheating furnace efficiency was increased from 61.83% to 69.43%.
ISSN:0144-5987
2048-4054
DOI:10.1260/0144-5987.32.6.989