نتایج جستجو برای: sofc
تعداد نتایج: 1709 فیلتر نتایج به سال:
New oxides of the (NdSr)n+1MO3n+1 (M = Co and Mn or Fe) series are reported. Compounds of composition NdSrCo0.75Fe0.25O4.10, NdSrCo0.75Mn0.25O4.08 and Nd0.5Sr1.5Co0.75Mn0.25O3.86 are the n = 1 members of the Ruddlesden-Popper homologous series (K2NiF4 structural type) as determined by X-ray diffraction and different transmission electron microscopy techniques. Their crystal structure consists o...
The goal of this work is to investigate the feasibility of a hybrid solid oxide fuel cell (SOFC) and gas turbine (GT) system for mobile power production. A system consisting of a gas turbine, a burner, and an SOFC is examined to gain fundamental understanding of the system dynamics. A control oriented dynamic model is developed to provide the critically needed tool for system feasibility analys...
Our interest in the exchange reaction of oxygen between the gas phase and oxides is twofold: (i) to understand the mechanistic details of one of the "simplest" gas-solid reactions which nevertheless exhibits an astonishing complexity in terms of reaction pathways, (ii) to use this knowledge for improving electrochemical devices which rely critically on a fast oxygen incorporation rate such as c...
This work aims at developing a renewable energy storage solution, based on reversible solid oxide cell (rSOC) technology. Firstly, the initially high performing cells were tested as single with long-term SOFC/SOEC load cycles part of test sequence. Secondly, similar integrated in stack design optimized for operation degrees utilization. The tests showed significant degradation galvanostatic per...
GWO-based MPPT controller for grid connected Solid oxide fuel cell with high step up DC-DC converter
The solid oxide fuel cell (SOFC) is used as secondary source in micro grid application. When the renewable sources are not able meet load requirement, Battery energy back-up system supposed to supply demand. SOFC come into action when state of charge (SOC) battery backup becomes too low. parameters assumed constant during its operation but those operating practically constant. vary widely which...
This paper presents a comprehensive overview on the current status of solid oxide fuel cell (SOFC) energy systems technology with deep insight into techno-energy performance. In recent years, SOFCs have received growing attention in scientific landscape high efficiency technologies. They are flexible, highly efficient, and environmentally sustainable. The working temperature makes it possible t...
Abstract The work is a case study of cruise ship supplied by liquefied natural gas (LNG) and equipped with solid oxide fuel cell (SOFC). It supposed that 20 MW SOFC plant installed on-board to supply hotel loads assisting three dual-fuel (DF) diesel/LNG generator sets. LNG consumption emissions are estimated both for the DF results use LNG-SOFC in comparison sets allows limit significantly SO x...
Objective: In a grid-interactive (PV-SOFC) generation system, the inverter is main constituent. Further, quality of injected signal in utility depends upon control and synchronization. Thus, objective thispaper to single-phase for hybrid DC system obtain synchronization between grid renewable energy source (RES) inverted output signal. Methods/Statistical analysis: This paper suggests software ...
در این پژوهش به بررسی اثر زمان آسیاب بر خواص ماده کاتد لانتانیم منگنات دوپ شده با استرانسیوم (lsm) در سنتز آن به روش مکانوشیمیایی پرداخته شد. در مرحله نخست، مناسب ترین ترکیب از نقطه نظر ساختار، خلوص و استوکیومتری با یافتن زمان و دور آسیاب بهینه و تنها در یک مرحله ساخته شد. در گام بعد، از پودر سنتز شده قطعاتی آماده سازی شده و با توجه به رفتار فیزیکی و حرارتی قطعه زینتر شده در دماها و نرخ های متف...
در این مقاله سیکلهای ترکیبی یک مرحلهای و دومرحلهای پیل سوختی اکسید جامد لولهای (SOFC) و توربین گازی از نظر انرژی و اگزرژی مورد بررسی قرار میگیرند. رفتار پیل سوختی اکسید جامد لولهای مدلسازی شده در این تحقیق، با نتایج تجربی شرکت زیمنس- وستینگهاوس مقایسه و اعتبارسنجی شده است. نتایج شبیهسازی سیکلهای ترکیبی مورد بررسی نشان میدهد که سیکل ترکیبی دو مرحلهای پیل سوختی اکسید جامد وتوربین گازی ...
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