Abstract
A marine energy system, which is fundamentally not paired with electric grids, should work for an extended period with high reliability. To put it in another way, by employing electrical utilities on a ship, the electrical power demand has been increasing in recent years. Besides, fuel cells in marine power generation may reduce the loss of energy and weight in long cables and provide a platform such that each piece of marine equipment is supplied with its own isolated wire connection. Hence, fuel cells can be promising power generation equipment in the marine industry. Besides, failure modes and effects analysis (FMEA) is widely accepted throughout the industry as a valuable tool for identifying, ranking, and mitigating risks. The FMEA process can help to design safe hydrogen fueling stations. In this paper, a robust FMEA has been developed to identify the potentially hazardous conditions of the marine propulsion system by considering a general type-2 fuzzy logic set. The general type-2 fuzzy system is decomposed of several interval type-2 fuzzy logic systems to reduce the inherent highly computational burden of the general type-2 fuzzy systems. Linguistic rules are directly incorporated into the fuzzy system. Finally, the results demonstrate the success and effectiveness of the proposed approach in computing the risk priority number as compared to state-of-the-art methods.
Highlights
Fuel cell systems, which are a scalable and commercial available renewable energy system, have long duration energy, low pollution, and high reliability
System has three main subsystems (Balance of Plant, Proton Exchange Membrane Fuel Cell (PEMFC) stack, Power conditioner), which consists of nine components and 38 parts, which are shown in Table 6, in which the conventional risk priority number (RPN) and fuzzy type-1 and -2 RPNs are demonstrated
This study has proposed an failure modes and effects analysis (FMEA) and a new general type-2 fuzzy structure well line for the PEMFC in a marine power system
Summary
Fuel cell systems, which are a scalable and commercial available renewable energy system, have long duration energy, low pollution, and high reliability. Electrolyte Membrane is the structural and Proton Exchange Membrane is the functional name of the semi-permeable layer that is utilized in the PEM fuel cells is an electrochemical energy generation device that directly uses the H2 and O2 to create electrical and heat energy. In another word, the PEMFCs are electrochemical apparatuses that convert the chemical energy through the reaction of the H2 and O2 to the electrical power, water, and heat. The power conditioner includes active and passive components and uses DC/DC converters to regulate the output from the PEMFC stack to a fixed DC voltage [1,2,3,4]
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