Thermodynamic and exergoeconomic analysis of a cement plant: Part II – Application

• The overall energy and exergy efficiencies of the plant is found to be 59.37% and 38.99% respectively.
• Performance assessment of a cement plant indicates that the calcination process involves the highest portion of energy losses.
• The specific exergetic cost cement produced by the cement plant is calculated to be 180.5 USD/GJ.
• The specific cement manufacturing cost is found to be 41.84 USD/ton.

This paper is Part 2 of the study on the thermodynamic and exergoeconomic analysis of a cement plant. In Part 1, thermodynamic and exergoeconomic formulations and procedure for such a comprehensive analysis are provided while this paper provides an application of the developed formulation that considers an actual cement plant located in Gaziantep, Turkey. The overall energy and exergy efficiencies of the plant is found to be 59.37% and 38.99% respectively. The exergy destructions, exergetic cost allocations, and various exergoeconomic performance parameters are determined by using the exergoeconomic analysis based on specific exergy costing method (SPECO) for the entire plant and its components. The specific unit exergetic cost of the farine, clinker and cement produced by the cement plant are calculated to be 43.77 USD/GJ, 133.72 USD/GJ and 180.5 USD/GJ respectively. The specific manufacturing costs of farine, clinker and cement are found to be 3.8 USD/ton, 33.11 USD/ton and 41.84 USD/ton respectively.