Potentials for energy efficiency improvement in the US cement industry

被引：238

作者：

Worrell, E ^{[1
]}

Martin, N ^{[1
]}

Price, L ^{[1
]}

机构：

[1] Ernest Orlando Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Energy Anal Dept, Berkeley, CA 94720 USA

来源：

ENERGY | 2000年 / 25卷 / 12期

关键词：

D O I：

10.1016/S0360-5442(00)00042-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reports on an in-depth analysis of the US cement industry, identifying cost-effective energy efficiency measures and potentials. Between 1970 and 1997, primary physical energy intensity for cement production (SIC 324) dropped 30%, from 7.9 GJ/t to 5.6 GJ/t, while specific carbon dioxide emissions due to fuel consumption and clinker calcination dropped 17%, from 0.29 tC/tonne to 0.24 tC/tonne. We examined 30 energy-efficient technologies and measures and estimated energy savings, carbon dioxide savings, investment costs, and operation and maintenance costs for each of the measures. We constructed an energy conservation supply curve for the US cement industry which found a total cost-effective energy saving of 11% of 1994 energy use for cement making and a saving of 5% of total 1994 carbon dioxide emissions. Assuming the increased production of blended cement, the technical potential for energy efficiency improvement would not change considerably. However, the cost-effective potential would increase to 18% of total energy use, and carbon dioxide emissions would be reduced by 16%. This demonstrates that the use of blended cements is a key cost-effective strategy for energy efficiency improvement and carbon dioxide emission reductions in the US cement industry. Published by Elsevier Science Ltd.

引用

页码：1189 / 1214

页数：26

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