Estimation of water recovery from thermoelectric power plants flue gases


Power plants may require considerable amount of water for their operation, mainly due to the steam condensation process. In addition to the evaporation losses that occurs at the cooling towers, water losses can occur by the air stream liquid drag and also by water purge. On the other hand, the combustion process for producing thermal energy for powering thermal machines (gas turbine, steam turbines, and internal combustion engines) produces relevant amounts of water vapor, carbon dioxide and other gases, varying according the type of fuel used. In this way, it is understood that there is a source of water resource within the power plant itself that can be used to supply part of the consumption, consequently reducing water withdrawal from the environment. This work estimates the amount of water produced in the combustion process in power plants that operate with the three main fuels used: coal, natural gas, and fuel oil. Typical properties of the fuels used are taken as reference for the estimation of water production taking into account the operational conditions of the plants. In addition to the amount of water produced, the volumes of the other gases produced can also be estimated, which is important for the evaluation of the condensation temperature of water vapor (dew point), aiming at the modelling of a condenser to separate the water content from the stack gas


PRATA, José Eduardo; SIMÕES-MOREIRA, José Roberto. Estimation of water recovery from thermoelectric power plants flue gases. In: INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS, ECOS, 30., 2017, San Diego. Proceedings… 12 p.

Log into BiblioInfo/IPT-DAIT to access the PDF text. Document is password protected, ask Customer Service/Library-DAIT/IPT:

SUBSCRIBE to our newsletter

Receive our news in your email.

INSCREVA-se em nossa newsletter

Receba nossas novidades em seu e-mail.