Fuel Cell Essay

Ratios of the reactants that are not the stoichiometric ratio provided by the balanced equation leave behind excess reactants. The stoichiometric ratios provided by the balanced equation prevent the formation of limiting and excess reactants for the exact amounts required are present and the reaction can be completed, yielding the most possible product and thus proving most effective. This combustion reaction is used to produce the explosive energy of the space shuttle and serve as a source of continuous energy for fuel cells in electric vehicles. In this lab, the same reaction was used to launch micro rockets off a launch pad to simulate the way explosive energy is generated to launch space shuttles. Fuel cells are electrochemical devices that make use of hydrogen and oxygen to produce electricity as well as water and heat as byproducts.

The Hydrogen Fuel Cell could revolutionize the world. This ingenious technology, which creates electricity from the chemical reactions of hydrogen and oxygen has, in its 150-year history, passed many of the critical tests along the path from invention to innovation. Recent developments in fuel cell technology and concurrent developments within the energy and automotive industries have brought the world to brink of the fuel cell age and the hydrogen economy.

However, some pundits are concerned that adopting hydrogen energy as the sole strategy for the issues facing the automobile’s future is problematic because of the lengthy time frame in which they are projected to become ubiquitous. Furthermore, the present infrastructure for the distribution of hydrogen fuel sources or the production of hydrogen fuel cells is not only insufficient, but slow to develop. As such, fossil fuels are presently the main source for hydrogen production, which means that hydrogen vehicles do not successfully decouple the automobile from a fossil fuel economy. This is also widely inefficient because it will generate four times the carbon dioxide emissions generated by gasoline efficient automobiles. Furthermore, compressing hydrogen for the purposes of

There is a never ending search for an effective source of energy that is both efficient and the safest option to use. Scientists located in japan may have found a solution to this dilemma as they were recently able to locate methane clathrate, more commonly known as fire ice. Despite the name existing as an oxymoron, many believe this hydrate could prove to be the savior for the earth’s fuel problems. However, given current research this supposedly useful source of natural gas could prove even more detrimental towards the environment than carbon dioxide.

Involvement in school and community is important to me. I take immense pride in representing my school at important competitions and in aiding my community in every convenient way possible. My interest and passion to become an engineer has led me to join engineering related activities/teams and my goal to help the community has led me to join service related organizations. Up to this point I have participated in many competitions and volunteered at many events.

Other than his mom dying when he was 17, Shipman had a pretty normal life.The question of why he killed so many of his patients still remains a mystery today. However, there are some conclusions people have made. Some believe it was because he witnessed his mother’s suffering and believed that sudden death at the end of a trusted and friendly physician’s syringe was a preferable option, others say that he hated women (most of his patients were women) for some unusual reason, or that he was obsessed with power-power that was perhaps exemplified by his choosing the time and manner of his own death and ultimately frustrating those who wanted to know “why”?

Walters Snelling. 1912 propane started being used as a commercial product for items like stoves, heaters, and barbecues. For having a very relatively narrow flammable limit with a lower explosive limit of 2.2 and an upper explosive limit of 9.6. Being used for fuel in common Used vehicles like forklifts in trash trucks to every day sedans. Considerd to be a natural gas with a chemical make up that is C3H8. When propane is contained with a sufficient amount of pressure it can be compressed to a liquid. When exposed to the atmosphere it vaporizes. However because propane is a heavier than air gas if it leaks from its container the vapors will stay low to the ground. During transportation of propane it is compressed to a liquid in order to move higher quantities at one time. Propane is transported using a DOT 331 tank on highway and on the railroad a DOT 105a300w which are tested to withstand thousands of pounds of pressure to allow for the liquefaction of the

One of the leading causes of lung cancer is believed to be air pollution. With nearly all automobiles running on gasoline, there is a much higher chance of obtaining a life threatening disease. There are many different solutions that attempted to fix the problem of automobile pollution but only one has come close. The hydrogen fuel cell consists of two electrodes, a positively charged cathode, and a negatively charged anode. The fuel cell has an electrolyte that sends electrically charged particles from one electrode to the other. The hydrogen fuel cell is able to produce energy as long as oxygen and hydrogen are available. Hydrogen fuel cells don’t produce emissions and are also able to power all motor vehicles. These special fuel cells do not cause pollution or create dangerous byproducts, their only byproducts are water and heat. In addition, a hydrogen fuel cell is way more efficient than gasoline powered engines. Most forms of transportation emit harmful emissions and cause pollution. The hydrogen fuel cell is an environmentally friendly alternative to

The LNG will be entirely risky due to the flammability it will be transporting. If the LNG product spills near an ignition source, it will burn above with evaporating gas. The burn will be more rapid with the fire being hotter. If the plant spills, but does not promptly combust, a

I was sitting on the couch watching a movie, then it struck, an idea, an idea about how we could change the world; with a ship, that could travel through space. It can change the world and benefit everyone, a space worthy ship that can save humankind from total disintegration.

The next most common type is molten carbonate the electrolyte in this is carbonate salts. However this type of fuel cell tends to be slightly less efficient due to the fact that they have to be melted before they can be used. Having a liquid electrolyte can be difficult to handle and time consuming. It is however useful seeing as it refreshes the electrolyte through every cycle.

Recent years have shown an increasingly large need for a practical renewable energy source for such reasons as diminishing fossil fuels and increases in greenhouse gasses. Hydrogen appears to be a way out of this gasoline-dug hole, or at least, a way out in the future. Hydrogen fuel cell cars are being engineered as we speak as the technologies to refuel them cleanly are being proposed. Unfortunately, most of the technologies associated with hydrogen are still in the prototype/pre-production stages and require better enhancements before becoming mainstream. This paper assesses the practicality of hydrogen power in cars both now and in the future while explicating the actual process of how a

Well we all know that the energy system is very unstable because the total energy available on the earth is limited, and man has exploited all the conventional technologies to fulfill his needs. By the use of these conventional technologies, the world also has a disability, with problems such as global warming. Consumption of energy by man increased gradually as his wants also increase. The conventional energy resources mainly include fossil fuels, but research shows that this fuel source will be depleted completely in approximately 20-25 years. This could cause major setbacks around the world. As a result, we need an alternative source of fuel that could keep the world running on its wheel. One possibility is ethanol. Chemically extract

The natural gas vehicle (NGV) has been inconsistent throughout history. With our environmental conditions in fuel consumption, reaching years a new position in this arena has emerged positively for gas to be an alternative for the fossil fuel. (AR) Natural test vehicles were prevalent in Europe during World War II in the United States, in the interest in this gasoline alternative raised in the nineteen fifties. The International Association for natural gas vehicles was formed during the Canadian energy exhibition in Vancouver in nineteen eighty-six. By the early nineteen nineties, natural gas vehicle supporters’ set-up guidelines for international commercialization of natural gas vehicles. Many natural gas vehicle associations emerged,

In order to understand the why behind the need to change from fossil fuels to hydrogen power, it is necessary to understand what that power is and how it works. Hydrogen is the most abundant and simplest element on earth. It is most commonly found as part of water. In its pure gaseous form it is extremely light, but when ignited in this state releases a large amount of energy in an explosion. In this violent reaction the hydrogen combines with free oxygen molecules in the atmosphere and creates water vapor. This is similar to the way gasoline is combined with air and ignited in an internal combustion engine in the cars used today and like with gasoline, the combustion of hydrogen has risks. In addition to the risk, some of the energy released in the reaction is lost in the form of sound and heat. As an alternative to burning, these same gases can be combined with the use of catalysts to extract the free electrons produced as liquid water is formed(Popovici and Hoble Dorel). Using cables connected to a fuel cell such as this, those electrons go through a circuit, generating electricity. This is more efficient than combustion because less energy is wasted in the form of sound and heat. Going further, greater efficiency for this reaction can be had the lower the temperature it is allowed to take place at, with 83% power at 25◦C(77◦ F)(Popovici and Hoble Dorel). As fuel cells are created with better heat management and