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A new intelligentapproach in predictive maintenance of separation system

Marichal G. N., Ávila D., Hernández A., Padrón I.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2020

Vol. 14, no. 2

385--390

Reducing contaminant emissions is an important task of any industry, included the maritime one. In fact, in April 2018, IMO (International Maritime Organization) adopted an Initial Strategy on reduction of Greenhouse gas (GHG) emissions from ships. An essential part responsible for producing these emissions is the diesel engine. For that reason vessels include separation systems for heavy fuel oils. The purpose of this work is to improve the predictive maintenance techniques incorporating new intelligent approaches. An analysis of vibrations of this separation system was made and their characteristics were used in a Genetic Neuro-Fuzzy System in order to design an intelligent maintenance based on condition monitoring. The achieved results show that the proposed method provides an improvement since it indicates if a maintenance operation is necessary before the schedule one or if it could be possible extend the next maintenance service.

Feasible separation regions for s-shaped distillation lines

Królikowski L.

Chemical and Process Engineering

2007

Vol. 28, z. 3

705-712

The author proposes a new construction method of feasible separation regions for non-ideal ternary mixtures. The method is based on analysis of the structure of feasible separation regions. The location of characteristic points and curves of the region border related to feed discrete distillation line is described. Two separate regions for rectifying and stripping sections are found. Joining them gives feasible separation region containing new areas, which have not been found until now.

Zaproponowano nową metodę konstrukcji rejonów wykonalnych rozdziałów. Zastosowano w niej wyniki analizy struktury tych rejonów. Określono położenie charakterystycznych punktów i krzywych brzegu rejonu w odniesieniu do linii destylacyjnej surowca. Znaleziono dwa oddzielne rejony: dla sekcji rektyfikacyjnej i odpędowej. Ich suma mnogościowa daje rejon wykonalnych rozdziałów zawierający nowe pola, które nie były dotychczas uwzględnione.