Abstract
This study describes the potential of solar thermal calciner technology and consequent carbon mitigation for Indian cement industries. Approach used to provide solar energy involves the installation of a solar tower system with a solar reactor atop the solar tower or preheater tower in a conventional cement plant. For potential estimation, locations of the clusters of cement plants with their actual annual cement production have been identified. Based on the annual actual cement production, the yearly process heating demand for the calcination process for each cement plant is estimated. Solar irradiation of each location of the cement plant is identified, and the plants with direct normal irradiation (DNI) > 1700 kWh/m2 /annum are considered. Total thermal energy saved is estimated as 133.36 PJ/annum and CO2 mitigation is estimated as 7413.73 thousand tonnes.
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