Atribución-NoComercial 4.0 InternacionalParedes Sánchez, José PabloRestrepo Baena, Oscar JaimeÁlvarez Rodríguez, BeatrizOsorio Correa, Adriana MarcelaRestrepo, Gloria2019-07-022019-07-022015-11-01ISSN: 2346-2183https://repositorio.unal.edu.co/handle/unal/60609Cement production is intensive in terms of energy consumption. An analysis of the resources involved in manufacturing clinker needs a corresponding mass and energy balance. This balance may indicate the existence of residual heat flows that are not used. This paper summarizes the development of a protocol for the evaluation of a cement plant rotary kiln to implement an Organic Rankine Cycle (ORC) system for cogeneration. The results show that 19.2% of the energy preheater exhaust gas can be recovered to be used in producing 5.5 GWh/year of electricity and 23.7 GWh/year of thermal energy in the cement plant. The electricity generated would represent annual savings of 1.18 $/t cement. The thermal energy produced in cogeneration, equivalent to coal in the plant itself, represents cement savings of 0.51 $/t cement and emissions reductions of 8 kt CO2/year.application/pdfspaDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/62 Ingeniería y operaciones afines / EngineeringArtículo de revistahttp://bdigital.unal.edu.co/58941/info:eu-repo/semantics/openAccessenergy balanceheat recoveryPortland cementOrganic Rankine Cycle (ORC).