Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Optimal configuration of a floating Combined Cycle Power Plant for Offshore applications
Submission Author:
Jorge Vidoza Guillen , SP
Co-Authors:
Jorge Vidoza Guillen, Max Mauro Lozer Reis, Waldyr Gallo
Presenter: Waldyr Gallo
doi://10.26678/ABCM.COBEM2017.COB17-1118
Abstract
Recent studies have proposed the integration of combined cycles in offshore oil platforms, in order to increase their efficiency. Offshore oil platforms are usually energized by gas turbines, which are operated at very low loads. Operating at low loads is inefficient and more energy intensive. Current environmental trends are also aiming to reduce CO2 emissions in offshore oil and gas industry. This study proposes an analysis of a floating power plant that would supply electricity for three FPSOs (Floating Production Storage and Offloading) in the Brazilian Pre-salt. Genetic algorithms are applied to determine optimum combined cycle configurations, according to three main objectives: minimization of weight-to-power ratio (WTP), minimization of fuel consumption during complete operational lifetime (FCOM) and minimization of specific costs (COSTS). Layouts and specifications were obtained for the combined cycles. Installed capacity varies between 200 and 300 MW, and purchased-equipment costs between 100 and 200 MMUSD. In the three cases there was an important reduction of CO2 emissions, between 16% and 25% reduction with respect to the case without floating power hub.
Keywords
Offshore, energy efficiency, offshore platform
