The study of energy consumptions and CO2 emissions in the production of aggregate for different rock units


Bascetin A. , ADIGÜZEL D., TÜYLÜ S.

SME Annual Meeting and Exhibit and CMA 113th National Western Mining Conference 2011, Denver, CO, United States Of America, 28 February - 02 March 2011, pp.160-165 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Denver, CO
  • Country: United States Of America
  • Page Numbers: pp.160-165
  • Keywords: Aggregate, Aggregate production, CO2 emission, Efficient energy consumption

Abstract

The human requirements have increased rapidly depending on population density and urbanization thus industrialization has grown steadily. As a result of the situation, the greenhouse gas emissions into the atmosphere and the global wanning have increased slowly. Today this effect has continued to increase. Therefore, the effects of greenhouse gases in all areas of production must be controlled. The study presents the methods of determination the CO 2 emissions (CO2-e) and energy consumption in aggregate production. The aggregate constitute approximately 70% by volume of concrete that has widespread use as construction material in the world. One of the most important elements in today's ternis is sustainable use of resources and minimum CO2 emissions (CO2 + CO + NOx + CH 4.vb.) at every stage of production of aggregate. Therefore, these elements must be taken into consideration in the aggregate production standards. The choice of production method of aggregate is very important for optimum use of energy and effects of greenhouse gas emissions. So the properties of the aggregate material must be known well to obtain the target. Within the scope of this study, the unit value of CO2-e that release when the production of aggregate in different formations is determined for our country. Thus, the effects of green house gas emission can be evaluated according to the characteristics of material in aggregate production planning. In this study, energies consumed during the production of aggregates at a quarry in Istanbul Cendere region were investigated by taking the different formations encountered at the quarry into consideration. The unit CO2 emission values per ton of produced aggregates were calculated as a result of this investigation. Besides, energy consumption values of previous months at this quarry were taken and the unit CO2 emission values were also calculated.