International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2016): 79.57 | Impact Factor (2017): 7.296 Volume 7 Issue 8, August 2018 www.ijsr.net Licensed Under Creative Commons Attribution CC BY Finite Element Analysis of Hydrogen Storage Composite Fuel Tank Pawan N Naik 1 , Dr. M K Venkatesh 2 , Dr. R Keshavamurthy 3 1 Student of M. Tech, Design Engineering, Mechanical Department, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India 2 Associate Professor, Mechanical Department, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India 3 Professor and Head of the Department, Mechanical Department, Dayananda Sagar College of Engineering, Bangalore, Karnataka, India Abstract: Composite materials are engineered or naturally occurring materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct within the finished structure. Composite materials are highly utilized in various fields like aerospace structure, marine, automobile, etc. On-board storage of hydrogen is a major challenge in the advancement of future fuel cell based automobile propulsion system. One standard is the pressurized storage composite tanks. Hydrogen exhibits the highest heating value per mass of all chemical fuels. Furthermore, hydrogen is regenerative and environmentally friendly. There are two reasons why hydrogen is not the major fuel of today’s energy consumption. First of all, hydrogen is just an energy carrier. And, although it is the most abundant element in the universe, it has to be produced, since on earth it only occurs in the form of water and hydrocarbons. This implies that we have to pay for the energy, which results in a difficult economic dilemma because ever since the industrial revolution we have become used to consuming energy for free. The second difficulty with hydrogen as an energy carrier is its low critical temperature of 33 K (i.e. hydrogen is a gas at ambient temperature). For mobile and in many cases also for stationary applications the volumetric and gravimetric density of hydrogen in a storage material is crucial. Hydrogen can be stored using six different methods and phenomena: (1) High-pressure gas cylinders (up to 800 bar), (2) Liquid hydrogen in cryogenic tanks (at 21 K), (3) Adsorbed hydrogen on materials with a large specific surface area (at T<100 K), (4) Absorbed on interstitial sites in a host metal (at ambient pressure and temperature), (5) Chemically bonded in covalent and ionic compounds (at ambient pressure), or (6) Through oxidation of reactive metals, e.g. Li, Na, Mg, Al, Zn with water. In present work to reach a design that offers a combination, Aluminum, Aluminium-Epoxy, Aluminium-Carbon Fiber have been tried out for static structural analysis on combinations of metals and composites. Fatigue life estimation of hydrogen fuel tanks have been carried out for above mentioned combination and results have been analyzed and discussed extensively. The numerical study was performed by means of ANSYS finite element analysis method. Keywords: cryogenic tanks, Aluminium-Epoxy, Aluminium-Carbon Fiber , metals and composites 1. Introduction The over utilization of non-renewable energy sources has prompted bit by bit expanding uncommon ecological contamination and vitality emergency. Various research works have as of late been completed on searching for sustainable assets as substitution for ordinary petroleum derivatives. Hydrogen has been perceived as the prevalent alternative for what's to come vitality industry due to the qualities of boundless supply, zero-emanation of greenhouse gases, and high vitality proficiency. Hydrogen stockpiling has turned out to be one of the overwhelming specialized obstructions constraining the across the board utilization of hydrogen vitality. Sheltered, high-effectiveness and sparing hydrogen stockpiling method is a key to guarantee positive keep running of hydrogen power module vehicles. The composite materials are utilized for manufacture of weight vessels by setting them in various introductions for various layers and in a typical introduction inside a layer. These layers are stacked in such an approach to accomplish high firmness and quality. The outline of the composite vessel as a principal inquire about work relates the physical and mechanical properties of materials to the geometric particulars. The present work intends to give a substitute method to build up a situation that can be utilized to store hydrogen. The weight tank proposed is essentially where, under high pressure, hydrogen will be put away in gas frame. An aluminum base chamber must be utilized as a totally composite tank won't be handy as hydrogen has a tendency to respond with the composite material and its properties weaken. Since aluminum is non responsive to hydrogen it gives a perfect base tank. Likewise considering a comparable tank made of steel, an aluminum tank is impressively lighter and gives better weight investment funds equivalent or larger amounts of quality for capacity. The flowchart appeared underneath is a portrayal of the system took after for the finishing of the task and accomplishment of the required destinations. At the point when quick filling is finished utilizing a compressor to expand the weight of the gas it brings about an expansion in the temperature of the gas inside the tank. The base tank material scatters heat better to the environment. The composite wall is for the most part capable to withstand the power of the high weight hydrogen gas put away in the tank and furthermore give the premise to a security factor. The primary composites meant to be utilized as a part of the venture are Carbon Fiber and Carbon Fiber Reinforced Plastic. In a fundamental sense, the thickness of the aluminum chamber can be expanded by additionally thickening the wall and this would likewise bring about getting an appropriate security factor. A possible alteration of the design can significantly improve the overall performance of this storage technique. This can be done by the amalgamation of materials like carbon fibre. Paper ID: ART2019365 DOI: 10.21275/ART2019365 245