| What materials can be used (the feedstock)? | What treatment does the feedstock need? | Is the feedstock a renewable resource? | Is making and using ethanol this way carbon neutral? | Are large areas of land needed to grow feedstock? | Good points | Bad points…
As depicted from the case study, sugarcane was a major commodity, which facilitated slave trade during the colonial time. Sugarcane was used to manufacture a drink called the Kill-devil, which was better compared to the expensive bear and wine. This drink evolved during the colonial time and kept on changing names from Kill devil to Rumbullion based on the ingredients added to the canned sugar. The name Rumbullion was later shortened to Rum. During this colonial time, sugarcane planting was an important activity since sugar had several important uses. Sugarcane planting was a major factor that facilitated slave trade since the increase in demand of the rum meant that there was the need to plant more sugar. Therefore, this called for more slaves…
In Brazil 10% of the energy used is provided from ethanol. In car fuel the mix of ethanol and petrol is about 85% ethanol with only about 15% petrol but in Australia fuels that contain ethanol are mainly about 10% ethanol and 90% petrol. Though a 85% ethanol blend has started being used in Australia but is not available at all petrol stations. As a car fuel it is blended with petrol to decrease how fast petrol burns, extend petrol reserves and to reduce green house gas emissions. For Brazil the use of ethanol as a car fuel has been very successful as it has a very large starch industry. It is also beneficial to the country economically because the high concentration use of ethanol has replaced expensive oil imports with locally produced fuels.…
Also, large areas of agricultural land will be sacrificed to growing ethanol-crops (e.g. sugarcane). This creates problems of soil erosion, deforestation, fertiliser run-off and salinity. Disposal of smelly…
The environmental impacts of farming practices can also be reduced with the adoption of sustainable production methods in the agricultural sector. Growing corn, wheat, rice, and sugarcane produces large amounts of agricultural wastes, some of which are burned, degrading air quality. In the production of cellulosic ethanol, the bulk of the biomass would become a valuable source of energy rather than a waste product. In fact, municipal solid waste (MSW) includes a large volume of cellulosic material that has the potential to be converted to ethanol.…
Ethanol is definition of stability; a fuel that decreases oil imports, is clean burning, and contributes useful byproducts. Ethanol is definitely part of the solution.KAAPA Ethanol, established in November of 2003, has created many new opportunities and jobs for the industry. Scott McPheeters and Shana Dahlgren gave an enthralling presentation of how ethanol system works and the benefits of the country’s adoption of ethanol and its byproducts. Video presentations were able to captivate the audience’s attention while it presented facts about the…
Thesis: “This book asks three principal questions: how did the early English planters in the West Indies respond to the novelty of life in the tropics/ to the novelty of large-scale sugar production? And to the novelty of slave labor?”…
o Ethanol: biofuel made from plants such as sugarcane, corn and switch-‐ grass. § Convert starch in plant material to simply sugars that are processed into ethanol Advantages of Biofuels (over oil) • Oil is concentrated in small number of countries -‐-‐ biofuels can be grown almost anywhere • If crops not used faster than can be replenished à no net increase in CO2 emissions – [UNLESS existing forests or grasslands are cleared to raise the new crops] • Biofuels are available, easy to store and transport in existing fuel networks (bridge technology)! • Can reduce CO2 emissions by 70% (if forests are not cleared!)…
In this paper I will explore the use of ethanol as an alternative fuel source. Ethanol is considered a renewable energy resource; as it is derived from crops such as: corn, sugarcane, beets, as well as, other organic materials. The use of ethanol could decrease our dependence on ever depleting supplies of fossil fuels; such as oil.…
First of all, the author asserts that the ethanol fuel would not assist to fix global warming problem. Conversely, the lecturer brings up the idea that augmented of ethanol fuel does not adversely affect the environment. In other words, cultivating plants to produce ethanol fuel not only would not ascend the greenhouse gases but also simply compensate disadvantages of burning such gasoline fuel effects on the atmosphere.…
One topic that has been discussed is the idea that the use of ethanol in America is causing deforestation in South American countries such as Brazil. Pressure on the world’s forests from the renewable energy sector also continues to grow. Forests are being replaced with biofuel crops such as sugarcane and other ethanol feedstocks to meet growing global renewable energy demand. Dr. Daniel Nepstad of the Woods Hole Research Center insists that.…
What drove the sugar trade? In the late 1600s and 1700s sugar growing took firm hold in the Caribbean. During that time sugar cane spread even further West. Anthropologists tell us that sugar was first grown in New Guienea some 9000 years ago. Sugar cane grows for 15 months then gets cuts down and gets crushed down.…
The world we live in today is suffering in ways that people before never have. There are constant issues involving environmental hazards, including the alarming rate in which natural resources are being diminished. To help limit the use of one resource, the United States has been turning corn into an ethanol fuel that can be used in vehicles as a gasoline alternative. But this use of corn comes with a set of its own negative effects that extend around the world. The amount of corn based ethanol produced in the United States should be decreased due to its overall negative impact and lack of efficient use.…
Design For Manufacturing/Assembly (DFM, DFA, DFMA) Much of the early and significant work on DFM and DFA was done in the early 1970s by Boothroyd and Dewhurst. Traditionally, product development was essentially done in several stages. The designer(s) (who usually had very good knowledge of materials, mechanisms, etc.) would design the product, and sometimes would construct working prototypes. Once the prototype was tested and approved, the manufacturing team would then construct manufacturing plans for the product, including the tooling etc. Often, different materials (e.g. different thickness or type of sheet metal), and different components (e.g. different sized screws etc), would be substituted by the manufacturing team. Their goal was to achieve the same functionality, but make mass production more efficient. However, the majority of the design remained unchanged, since the manufacturing engineers could never be sure whether a change would affect some functional requirement. Two things changed in the 1970’s: (i) Many new types of plastics were developed, and injection moulding technology became widely available, resulting in the possibility of low cost plastic components. An advantage of these new plastic materials was that they provided different material behaviour (e.g. many cycles of large elastic deformations without failure – a property useful in making snap-fit mating components). Thus pats that had to be made form metal and screwed together could just be made out of plastic and snap fitted. This reduced assembly time, assembly components, and production costs. (ii) Several companies were trying to bring their products to the market faster. One problem with the earlier method of doing things was that each time there was a design change made by the manufacturing engineer, product development was held up, waiting for the engineering change notice (ECN) to be approved by the designer. Often, this process introduced delays because the design engineer would be…
Social Science Marking Scheme Class X Part I 1. 2. (a) (c) or or (b) (a) or or 3. (a) or (c) 4.…