Waste Heat Recovery Potential in Concrete Industry

A Concrete Energy Efficiency Solution

World Bank News, September 5, 2014

Cement — the key ingredient of concrete — is the world’s most widely used building material. It’s also the product of an energy-intensive process that accounts for about 5% of global greenhouse gases. These emissions threaten to increase as developing countries urbanize and build roads, buildings, and other infrastructure in the decades ahead. To pursue a low carbon growth path, the industry needs to adopt the most efficient technologies including waste-heat recovery (WHR).

Waste-heat recovery involves capturing the excess heat of an industrial process and using it to generate electric power. The technology can be used in a number of heavy industries, including steel and chemicals, but has not been applied extensively outside of China despite its potential to increase energy efficiency and mitigate climate change. Of the more than 850 waste-heat recovery installations in the cement industry globally, China has 739, followed by India with 26 and Japan with 24.

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