Wednesday, November 27, 2019

Oil Refinering Using Linear Programming Essay Example

Oil Refinering Using Linear Programming Essay INTRODUCTION My topic is oil refinering using linear programming, this is under petrochemical industries which mean it will deal more about chemicals, this is about optimising the cost using a modelling method in mathematics called linear programming. This is very important because it links what is done in petrochemical industries with mathematics. Since there is a huge need of the products that are produced after petroleum refinering which are petrol, gasoline, oil, diesel and etc so in the near future refiners and government will have to make decision to increase local refinering capacity or upgrade and expand the existing refineries(  (SAPIA) executive director  Avhapfani Tshifularo said so. Currently South Africa is unable to produce sufficient fuel so at forces it to import refined products. we can describe oil refinering as an industrial process plant where crude oil is processed and refined into more useful products which are petroleum naphtha, gasoline diesel fuel etc. rude oil that is processed can be defined as a natural occurring flammable liquid which consist of mixture of hydrocarbons of different molecular weight and other liquid organic compounds. In the oil refinering, different products are made and are said to be bases or components, which are alkalyte, platform ate, penexate and COD gasoline, these produc ts are stored in tanks. These are the main products we have in refinering . the reason for blending the components is to minimise cost. We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Oil Refinering Using Linear Programming specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Since the type of product that is needed by the market is RON 95 when blending or mixing these components an octane booster must also be included. This is called gasoline blending which can be described as a fuel that is derived from petroleum crude oil; it is also blended or mixed with different hydrocarbons which are estimated to be about 200. When blending the components we are trying to minimize the cost, because we take very expensive components which are alkylate and platform ate and mix with cheap components like penoxate and COD gasoline. Linear programming is a reliable method in solving such problems; it is a very good technique in minimising the cost. When maximising the sale revenues we use linear model, 1 of the mathematical tool. We have to consider the availability of the components, their physical properties and the products needed by the market which is RON 95. The purpose of gasoline blending is to optimise the generation of valuable products such as gasoline wich I mentioned above and even to satisfy the demand for the market.

Sunday, November 24, 2019

Should Using a Cell Phone be I essays

Should Using a Cell Phone be I essays Should Using a Cell Phone be Illegal While Driving? Cellular phones are one of the most widely and most popular forms of communication today. Though once considered rare luxuries, cellular telephones have become a commonplace possession over the last decade. Thanks in part to advances in wireless technology and immense public demand, cell phones have been made affordable to almost anyone wishing to pay for the phone and cellular service plans. Cell phones are so easily portable that it only makes sense that cell phones and automobiles will sometimes go together. With Americans using over 95 million cell phones, we notice the source of some of the accidents we see today. Does this mean we should ban the use of them all together or just change the way we go about using them? An article published in Mercury News in 2003, state officials reported that they were able to discover what distracted drivers in 9,000 crashes, almost 18 percent of the accidents that resulted from driver inattention in 2001. Cell phone use was cited in 891 crashes, or nearly one in 10 incidents (Richards Collision risk is four times greater if you use a phone while driving (Richards to numerous fatal automobile accidents (White, Eiser, Harris 323). While the cell phone industry has lobbied against such actions, 22 states and hundreds of cities and towns across the nation have considered legislation limiting the use of cell phones by motorists. There is a lo...

Thursday, November 21, 2019

Read two articles and write an essay Example | Topics and Well Written Essays - 500 words

Read two articles and write an - Essay Example ribe the bankruptcy of the Chinese feudal system and culture; whereas Nam Le recounts Yamata’s description of life in Hiroshima during the American aerial bombardment of World War II. On the one hand, A Madman’s diary is meant to be highly critical of the Chinese government and traditional form of culture for delivering the Chinese people into such hardships as they experienced during the first half of the 20th century, Yamata’s story also recounts hardships and privations but invokes Bushido and love of Fatherland at nearly every turn in order to rally her spirit. The protagonist in A Madman’s diary spends a great deal of time concerned over the fate of future generations due to the fact that he sees society crumbling around him. Due to this image of utter degradation and loss of direction, balance, and reason, the protagonist sees little hope in his homeland for the future generation to thrive. Naturally, the historical backdrop to this centers upon the ongoing occupation of Chinese land by Japanese soldiers, a complete breakdown in governance and leadership by the Nationalist Chinese forces, and the concurrent civil war that exists. In short, this is a time of utter and complete societal upheaval that affects every single citizen on a deeply personal level. Likewise, in Hiroshima, Yamata’s mother shows a brief glimmer of maternal instinct as she recalls what life was like for her in Hiroshima when she was a child, how it differed from the life the family lives currently and how she longs for those days to come again. Additionally, Yamata’s mother implores her to stay alive no matter what happens. Yamata’s mother dubs Yamata as â€Å"her heart†; saying that even if she dies – at least her heart will live on. Drawing a parallel to how strong the culture and propaganda levels of China were as compared to Japan in the given stories would be an exercise in futility. Even though it appears as though the Bushido code and willingness to endure