(c) Air is made up of a mixture of gases, and is comprised of only 21% oxygen. The remaining gases would not be involved in the combustion process. On the contrary, the gases such as carbon dioxide may hinder the combustion process. Hence, if the bomb calorimeter were to be pressurised with air at 30 atm, it would result in an incomplete combustion of the fuel sample due to the lesser quantities of oxygen available. There would be a slower rate of combustion which leads to inefficient burning and less heat would be produced in the process.
The toxic waste can be managed by treating it well and burying it underground. Also new technology has made it possible to run Nuclear Power plants with thorium. To use thorium the Nuclear Power Plant needs to be driven on the Accelerator Driven System. This system may have a large price tag but it will pay itself back within fifty years or so. Thorium compared to Uranium creates less toxic waste and also unlike Plutonium (the by-product of uranium) the toxic waste created by Thorium will only takes 500 years to be declared safe.
al.). Some pollutants – for instance, polycyclic aromatic hydrocarbons – can lead to life-threatening diseases in humans and wildlife, such as cancer (Harvey). Scientists use many different methods to remove these pollutants from water supplies; one of those methods is the utilization of adsorption onto a porous substance, normally charcoal. Due to numerous circumstances, scientists have begun searching for alternatives to charcoal, one of them being Bentonite clay. However, Bentonite clay cannot be easily removed from the water, so in this project the students were instructed to modify the clay to make it magnetic and then compare its effectiveness in absorbing a model PAH against charcoal.
The change to "greener fuel" has yet to take place, more than one hundred years after Rudolf Diesel made that change possible. The diesel engine eventually became a much sought after commodity. It would eventually replace the more cumbersome and dangerous fuels, such as coal, that were being used on ships and such, at the time. It would make these ships faster, cleaner and more efficient. If one country had a monopoly on these engines, it would have given them a strong military advantage.
Copper wires are usually not used in high-tech automotive parts and semiconductors because of its inability to control electrical surges. Manufacturers and makers of semiconductors often use silver and gold wires in these applications because these metals are more stable when handling small amounts of electricity, ensuring no electrical surges destroy sensitive components. Electromagnetic Interference Copper wire is susceptible to electromagnetic interference, potentially leading to some devices working improperly. Applications that require connection
Fracking is bad for the environment. People still need natural gas or oil to live their life. It will take time to get all of the bugs worked out of fracking. Fracking companies are using the new technology to insure the protection of the environment. Fracking is a cheaper way of obtaining gas.
Benefits of Fracking Fracking could change the way Americans live. Hydraulic fracturing is an extraction process used to get natural gas, oil and geothermal energy. The drillers, drill thousands of feet down through the bedrock and then inject a mixture of chemicals and grit into shale below. The mixture fractures the rock, allowing natural gas to seep back out through the drill hole. Even though there are people against fracking, the opposites consider that it could be good because it will create jobs, Americans could have their own energy and the U.S.A will use less coal.
The use of chemicals in the hydrofracking process and the energy needed to operate the trucks and drills, critics say, offset the low carbon emissions from the burning of natural gas, making it no better than oil or coal. Furthermore, opponents contend, pollutants left behind at hydrofracking drilling sites could seep out from closed pipes and wells, posing a danger to public health for generations. Therefore, critics say, the federal government must step in to institute stricter regulations than the states have already
PROPERTIES OF LIQUID HYDROGEN The byproduct of its combustion with oxygen alone is water vapor (although if its combustion is with oxygen and nitrogen it can form toxic chemicals), which can be cooled with some of the liquid hydrogen. Since water is considered harmless to the environment, an engine burning it can be considered "zero emissions." Liquid hydrogen also has a much higher specific energy than gasoline, natural gas, or diesel. The density of liquid hydrogen is only 70.99 g/L (at 20 K), a relative density of just 0.07. Although the specific energy is around twice that of other fuels, this gives it a remarkably low volumetric energy density, many fold
In fact, without it, the “Earth’s average surface temperature would be a frigid 0 degrees Fahrenheit (°F) rather than its actual average temperature of around 59 °F.” (Turk, Bensel, 2011) If we did not have these natural gases we would not be discussing global warming. We would instead be trying to find a way to heat things up and dig our way out of ice. There are many scientists and others who feel that global warming is not due to humans, but instead point to the sun as the cause. “Climate change contrarians often point to the sun as the driver of extra-human global warming. The fact that the sun has been ruled out as the cause of global warming by solar