Fuel efficiency

What steps can we take in our lives to reduce Global Warming in the United States? When the average temperature of our planet gradually increases over time we call this global warming. Global warming is affecting the oceans, land and wildlife. The ocean temperature is increasing causing damage to our coral reefs and melting the polar ice caps at a much faster pace than ever recorded before. It may seem like only larger measures enacted by the government can be taken to prevent global warming,…

In this team paper, I choose the topic on the fossil fuels energy. The fossil energy is including petroleum, natural gas, and coal. They are three major use resources in the past few decades. The reason for them to be the main resources because they can transfer into different energies. So that make them to be more ways to use in our daily. In the past few decades to present, and maybe in the future, we will still heavily use them. From the article U.S. Energy: Overview and Statistics mentions,…

When studing liquid fuel combustion in gas turbine combustor, complicated principals including reactive flow, spraying, turbulent flow, multiphase flow, convective and radiative heat transfer and their interactions should be considered. In recent 40 years combustion chambers have continuously improved structurally. Present combustion chambers are generally devided to three main groups: Can type, Can Annular type, and Annular type chambers. Combustion chambers consist of components such as…

Pulverised fuel-fired plants are used in a locomotive. Credit: ME Mechanical The Advantages and Limitations of the Gas Turbine The Main Advantages of Gas Turbines are: High power output from a given weight of engine. The torque output characteristics permit a notable simplification of the transmission system. Smooth vibration less running due to absence of reciprocating parts. Easy starting. Can use a wide range of fuels and does not require expensive anti-knock…

performance was evaluated in terms of thermal efficiency, exergy losses and specific power output. Energy and exergy analysis was carried out on Braysson cycle and Brayton cycle. The analytical formula was derived for energy efficiency, specific power output, exergy losses of each component, and the exergy efficiency. The influence of various parameters on the performance of the Braysson cycle and Brayton cycle were analyzed. The analysis was carried…

comparable properties to mineral diesel, being easy to produce compared to counterparts and offering smaller emissions footprints. Therefore, the experimental study aims to evaluate the potential and influence of Jatropha oil (JO) as diesel engine fuel. Endurance long term operation tests of 300 hours for JO and 100 hours for DO were conducted on a small single cylinder 6.5 kW diesel engine generator to investigate the durability, performance and emission characteristics of the engine with the…

Demand Side Management in Microgrids For some time now, there has been growing concern about the continuous consumption of fossil fuels, coupled with issues of environmental depletion and low energy efficiency for electricity power generation and use. This has increased the use of alternative energy resources (wind, biomass, solar and hydro systems) in forms of distributed energy resources (DERs) or distributed generators (DGs) [1]. However, these distributed generators come with safe and…

more potential than any other source, yet it is the source of so little of total energy produced. Fossil fuels will be exhausted first in less than 300 years (4), then natural gas. Solar power could provide unlimited pollution free energy. The greatest challenge in this endeavor is in increasing the efficiency of solar cells. The Shockley-Queisser limit is the theoretical maximum efficiency limit of a solar cell and is approximately 34%. It was first calculated by William Shockley and Hans…

Distillation is the most widely used separation process in the chemical industries. The separation of mixtures by distillation depends on the relative volatilities between the components. The greater the relative volatilities, the easier the separation. DME can be used as an alternative raw material when it is converted to gasoline. The DME is converted to gasoline range hydrocarbons over a zeolite catalyst. In the gasoline production reaction, some reactions cause unwanted components which may…

energy has many benefits for example less usage of fossil fuels. Fossil fuels are a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. Solar energy is about as natural a source of power as it is possible to create electricity. The…