نتایج جستجو برای: proton exchange membrane fuel cell pemfc
تعداد نتایج: 2184049 فیلتر نتایج به سال:
Energy consumption by sector in Malaysia is rising significantly, especially for residential and commercial sectors, expected to continue increase the upcoming years. The existing power generated from a proton-exchange membrane fuel cell (PEMFC) system may be insufficient sustain peak load demands during periods stationary applications. presence of an ultra-capacitor (UC) bank would beneficial ...
Recent trends and advances in hydrogen/air Proton Exchange Membrane Fuel Cells (PEMFC) are incorporated into a dynamic control oriented model. This type of model is important for development of control systems for PEMFC powered transportation where unpredictable and widely varying changes in power demand can be expected. Self humidification and low pressure operation are the two major changes t...
Considering the fact that various features can be used in proton exchange membrane fuel cell (PEMFC) fault diagnosis, while lack of feature evaluation method brings great difficulty selecting appropriate at practical PEMFC applications, a generalized and selection is urgently required diagnosis. This article proposes novel method, where discrimination capacity robustness are evaluated. With pro...
Thermodynamic, exergetic and thermoeconomic analyses were performed on two types of double-effect LiBr–water absorption refrigeration systems (ARS) for use with a 5-kW high-temperature proton exchange membrane fuel cell (HT-PEMFC) as heat source. Proper temperatures the high-pressure generator, combined generator condenser, absorber evaporator determined to meet requirements constant cooling de...
Developing self-humidifying membrane electrode assembly (MEA) is of great significance for the practical use proton exchange fuel cell (PEMFC). In this work, a phosphoric acid (PA)-loaded Schiff base networks (SNW)-type covalent organic framework (COF) proposed as anode catalyst layer (CL) additive to enhance PEMFC performance under low humidity conditions. The unique polymer structure and immo...
Nowadays, with increasing energy requirements, the use of clean resources has become important. Fuel cells are an important key for technology due to wide range utilization areas such as automotive, portable power applications, electricity generation, space, aviation and naval technologies. Additionally, they have many significant properties not producing harmful gases, therefore do cause envir...
In extremely cold environments, the fuel cell vehicle (FCV) waste heat utilization subsystem can only exchange a small amount of proton membrane (PEMFC) into warm air circuit for cab heating, which has poor adaptability to environments. The first step in this study was build test bench vehicles. Secondly, PEMFC heating capacity and liquid–liquid exchanger transfer were analyzed using experiment...
Fuel cells in the near future are going to challenge recent strong progress of battery-based energy system. Despite many challenges, including material composition, storage and distribution, hydrogen fuel cell has demonstrated its potential trucking fleet transportation systems due ability be safely transported used resulting sharp drop CO 2 particulate emissions. Review works revealed that Pro...
The proton exchange membrane fuel cell (PEMFC) technology has drawn considerable attention during past two decades and has potential for automotive applications due to high energy density and low impact on environments [1, 2]. Nevertheless, commercialization of fuel cell vehicles still depends on achieving higher volumetric power density and specific power in order to compete with traditionally...
an essential requirement for an operating pem fuel cell is providing proper water content in the membrane. to avoid water flooding an appropriate water balance is required. here, an analytic model of a planar membrane humidifier for pem fuel cell is proposed where the effect of dimensional parameters includes membrane thickness, membrane area and channel hydraulic diameter are investigated. a n...
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