Minimizing energy consumption in industries by cascade use of waste energy

Author

Hayajawam, N. ; Wakazono, Yoshitsugu ; Kato, Takeyoshi ; Suzuoki, Yasuo ; Kaya, Yoichi

Author_Institution

Center for Integrated Res. in Sci. & Eng., Nagoya Univ., Japan

Volume

14

Issue

3

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

795

Lastpage

801

Abstract

This paper discusses the regional energy saving potential by cascade use of waste heat in energy intensive industries, taking into account the actual local industrial structure in Japan. Energy flow in the industrial combinat composed of iron and steel, cement, paper and pulp and ethylene was optimized to minimize the oil consumption of steam boilers. The simulation results reveals that the local industrial structure highly influences on the energy saving potential by heat cascading. The industrial structure optimizing energy consumption was determined in consideration of spatial constraints of manufacturing plants or heat transmission loss between different plants. More than 90% reduction in oil consumption was expected by interconnection of waste heat supply and energy demand mainly between ethylene and paper and pulp industries

Keywords

boilers; energy conservation; heat losses; industrial power systems; power consumption; thermal analysis; Japan; energy intensive industries; heat cascading; heat transmission loss; industrial energy consumption minimisation; industrial plants; manufacturing plants; regional energy saving potential; simulation results; steam boilers; waste heat energy cascade use; Boilers; Cement industry; Energy consumption; Iron; Manufacturing industries; Metals industry; Petroleum; Potential energy; Steel; Waste heat;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.790953

Filename

790953