The Sun provide Earth with large amount of energy enough to power the great oceanic and atmospheric currents, the cycle of evaporation and condensation that bring fresh water in land and drives water flow, and the typhoon, hurricanes, and tornadoes that so easily destroy the natural and built landscape. Sunlight can be converted into electricity by exciting electrons in a solar cell. It can yield chemical fuel via natural photosynthesis in green plants or artificial photosynthesis in human engineered system. Concentrated or unconcentrated sunlight can produce heat for direct use or further conversion to electricity. Figure 1.1 shows the solar photons convert naturally into three forms of energy which are electricity, chemical fuel and heat.
The Laws of Areas: A line that connects a planet to the sun sweeps out areas in equal times. The Law of Periods: The Square of the period of any planet is proportional to the cube of the semi major axis of its orbit. Kepler’s Laws improved Copernicus model of the universe. If the eccentricities of the planetary orbits are taken as zero, then Kepler corresponds with Copernicus: The planetary orbit is a
The sun is a very valuable source to the world today. We use it for heat, plants use it to grow, and energy such as solar power. Solar power is the conversion of sunlight into electricity. Solar power is the next alternative to all other sources of energy out there. Fossil fuels such as oil and gas are non-renewable, which means they are limited.
– The air babble and mineral particles rise through the pulp to the surface of the froth. • still though the air bubbles habitually break at this point, the mineral leftovers on the surface of the froth. • The mineral is physically separated from the permanent pulp material and is removed for extra dispensation. Sulphide Minerals • Are occasionally roasted – Heated in air with no melting to alter sulphides to oxides – Gives inedible H2S and SO2 – Then oxides processed alike to Fe • evolution of roasting and smelting together makes a lusterless – Sulfides are melted into a lusterless and air is goes through. S is distorted to sulfur dioxide and Fe to iron oxide, and Cu and Ni continue in melt • Solvent extraction/electroplating – worn where rock contains Cu but in too slight amounts to be recovered by standard methods Heap Leaching Here in this process, generally done for Au, the ore is not floor, but quite, trodden and piled on the outside.
A small panel can generate enough electricity to power stop signs and other signs used for road construction. Solar panels on rooftops can gather energy and are capable of heating homes/buildings, along with water. Although solar panels are clean and sustainable, there are some negative impacts they have on the environment. First, large scale solar companies run the risk of of land degradation and habitat loss. Solar panels have a smaller
If the hi-limit thermostat fails to cut power to the heating element and the element gets too hot, the thermal fuse blows and cuts all power to the dryer. This could mean that a thermostat is defective or something is wrong with your venting duct, filters, seals, or blower. You cannot reset thermal fuses so once they blow they must be replaced. Get the proper replacement fuse for your model and replace the hi-limit thermostat as well. Never bypass a
A few of these types of energy are: Solar panels, wind turbines and nuclear energy, which all do not release toxic gases. However these energy sources also have pros and cons in multiple ways and aspects, two of them being socially and economically which makes the choice hard on which energy source to invest most in to avoid more problems in our climate. Since solar energy is easy to access and is becoming more popular, therefor in has a lot of potential to become the energy source, which will help reduce greenhouse gases. Nuclear energy: Nuclear energy is an alternative energy that can be used to reduce greenhouse gas emissions. The energy is generated by water that is turned into steam, which drives turbine generators to produce electricity.
It is also not desirable in colder climate as the hot bitumen gets solidified and losses its binding property as soon as it comes in contact with the cold pavement surface. Cutback bitumen were given as a solution for these problems but this to requires a little heating accompanied by the emission of solvent oil used as cutter which is hazardous to the environment. This encourages the use of bitumen emulsion which can bring about both energy saving and pollution control by eliminating heating of both bitumen and aggregate.
Creating and adapting new ways of utilizing renewable resources is becoming increasingly important. One of the most abundant sources of renewable energy comes from the sun in the form of solar radiation. The Pizza Box Solar Oven is just one example of how we can use the sun's energy as a clean source of power. Every step in creating the Solar Oven represents an important concept about how energy from the sun is harnessed. The Components of the Solar Oven Aluminum Foil: Reflects the light from the sun into the oven.
2.0 Literature Review (related topics) 2.1 The sun Sun is a giant hot object at the heart of the solar system which scientists believes that it was formed ago 4.6 billion years due to the collapse of the solar nebula. The sun is huge with a volume of 1.3 million times larger than the earth. The internal structure of the sun is composed of several zones such as core, radiative zone and the convection zone from inside out of the sun. The energy of the sun is produced only at the high tempered and pressured core, which exist one quarter of suns radius. The energy is created through nuclear fusion of hydrogen in high pressure and a temperature of 15 million kelvins.