Linear Programming to Solve Coal Blending Problem

The process to mine the coal is quite complex. First, surveyors are called on site to document the layout of the land so that in can be restored to

In proximate analysis of the coal the moisture content, ash, the volatile matter, and the fixed carbon in the coal sample is determined. It is the most common simplest form of coal evaluation.

Nowadays, coal is still one of the greatest used energy to generate power in so many countries. Using coal in electricity generation is 93% in South African, 87% in Poland, 79% in China, 78% in Australia, 45% in USA, 41% in Germany, 58% in Israel etc. (Coal & Electricity) From the data above, even the developed countries use coal to generate power as the main source. In many developed countries, energy generation is still based on coal as a long-term source. In recent years, although there is an increasing number of equipment using gas and wind to generate the power, it is still lower than the proportion of coal-fired power generation. The reason why most countries choose coal as a main source to generate electricity, is that there are many advantages in using coal to generate electricity. First of all, coal is the

Coal power is the cheapest fuel to power the ever growing population with Australian mining industry still putting in billions of dollars into a vast amount of coal projects never the less coal power is a fossil fuel, a fuel which takes hundreds of year to form so the future of coal is undetermined. Coal is a reliable power source but one of the many concern with coal is the mining process used to remove it from the ground. Ecological effects are developing worries for the industry, with the carbon emissions possibly contributing to global warming.

Coal’s reputation has become as black as coal itself, but without it the quality of life that hundreds of millions of people enjoy today would not be possible. Coal has been used in many ways throughout history and it will continue to be a vital resource in supplying the energy needed to fuel an energy hungry world. Research cited throughout this paper suggests that coal is an energy source for the future because it is stable and reliable with abundant reserves, it is the most affordable and efficient fuel source used to produce power, and because of new clean coal technologies, coal can be burned with minimal to no damage to the environment.

Yancoal is a competitive coal exporter in Asian markets. In their vision, strong demand of coal in developing countries can elevate amount of production for company in the future. For instance, China has a huge coal reserves. Proportion of coal in China's primary energy consumption is as high as 70%, which means it is twice as much as the global average. Due to rapidly development of heavy industry and resource price rising, China's coal production

This can be done through efficient and high quality management/strategies, along with superior grade technology to minimize dust emissions from the coal mining process and transportation. It is up to Gundy Coal Ltd to ensure that their venture ensures to not exceed the particulate emission or deposition parameters established at any area in or accompanying.

While technology has led the world into such an advanced setting with intelligent machinery and automated devices, coal has remained a loyal contributor of the energy needed by these various types of equipment to function properly. Almost half of the electricity in the United States is produced in coal plants where coal is burnt to produce this energy [1]. Both beneficial and detrimental factors come with this alternative source of energy, known by the world for centuries.

The second form of coal is metallurgical coal. A Metallurgical coal mostly used to make/ produce many steel products. 74% of steel products today are made up of coal. Thermal coal is abundant which means it has a lower carbon content, this also means that the Thermal coal contains a higher level or moisture than metallurgical coal. As well as coal being used to provide/ generate power to many places in the world, coal is also popularly used in the cement manufacturing and as a component of thousands of other products. Both of the types of coal are formed in similar ways, these are from decomposed vegetation that was compressed beneath several layers a diverse variety of sand, sediment and rock at a very high temperature over millions of years. Coal is typically found as layers that are also known as coal beds or veins that are also called coal seams and in Australia, coal is mined above and below the ground. As well as the 2 types of coal that were mentioned before, Thermal and metallurgical, coal can be put into 3 other

Lignite is the lowest rank of coal with the lowest energy content. Lignite coal deposits tend to be relatively young coal deposits that were not subjected to extreme heat or pressure, containing 25%-35% carbon. Lignite is crumbly and has high moisture content. There are 19 lignite mines in the United States, producing about 7% of U.S. coal.

Mining Coal Seam gas includes of drilling far into the earth to remove any methane stored in a coal seam. To remove the gas, great amounts of salty water compacted in the coal seam must be lifted to the surface. The water is a huge left over produce from the coal seam gas removal. Means for taking out the gas contain hydraulic breaking or sideways drilling. These two methods may cause risks to the groundwater.

Coal is a hard, black colored rock-like substance. It is made up of carbon, hydrogen, nitrogen, and varying amount of sulphur. Coal was form as decomposition took place in the absence of oxygen and much of the hydrogen content of the matter was eroded away, leaving a material rich in carbon. The material was compressed over the years by sand and dirt, leaving the form of a carbon known as coal. The different types of coals are Anthracite, bituminous, lignite, peat, coke, and charcoal. Coal is mined out of the ground and used to produce energy. However, they are many deaths, injuries, and sickness involved in mining coal.

The coal industry has been struggling. The fall in prices which was initially thought to be temporary has persisted, and due to a similar over-production of supply, coal continues to decrease in value. Years of buildup in the mining capacity have forced global coal prices to tumble and there’s little hope that the industry will be back firmly to its knees. Slower growth in world coal demand, lower international coal prices, and higher coal output in other coal-exporting countries have all led to a decline in U.S. coal exports. Lower mining costs, cheaper transportation costs, and favorable exchange rates will continue to provide an advantage to mines in other major coal-exporting countries compared with U.S. producers. One of the largest economies in the world, China, has experienced decrease in demand for coal. There is just too much of an over-supply going on internationally in the year 2015. The EIA expects a 7% decrease in total coal consumption in 2015. As such, coal production is expected to decrease in all coal-producing

Coal, a mineral I have discussed previously, is necessary to our everyday lives. Coal is an incredible source of energy; it heats our houses and buildings, and also fuels stoves. You may often wonder where this extremely useful mineral comes from. Coal does not just appear; it needs to be mined through a process which results in our being able to utilize it. Coal mining is fairly inexpensive, is carried out on a large scale and can be mined in either underground or surface mines.

The coal-bearing deposits of coal, along with many species found geo resources having consumer relevance. They are the host rocks for the construction industry as a raw material, groundwater, coal bed methane, rare and trace elements including rare metals and their compounds. For example, certain coals are enriched in germanium. In terms of coal Russia ranked fifth in the world (after China, the US, India and Australia), 3/4 of coal produced is used to produce energy and heat, 1/4 - in metallurgy and chemical industries. Exports are a small part, mainly in Japan and the Republic of Korea. Open coal mining in Russia is 2/3 of the total. This method of production is considered the most efficient and cheap. However, without taking into account the associated severe violations of nature - the creation of deep pits and extensive overburden dumps. Mine production is more expensive and has a high accident rate, which is largely determined by the deterioration of mining equipment (40% of it is out of date and needs urgent modernization).