Sunday, May 24, 2020
4.3 Biomass Energy Conversion Technologies Biomass materials can be converted to various useful forms of energy such as heat, electricity and liquid fuels. The technologies used to convert biomass into energy ranged widely from the simple combustion of biomass used for cooking and heating in developing countries to a variety of technologies to generate modern energy carriers - electricity, gas, and liquid bio-fuels. Canada is using various materials including waste and residuals to generate electricity, heat and, bio-liquid fuels (bio-ethanol and biodiesel) (Defra UK et al. 2007). Biomass energy can be used at the household (-10 kW), community (-100 kW), or industrial (- MW) scale. Key biomass energy conversion technologies include thermal and thermochemical, and biological and biochemical. Ã¢â¬ ¢ Thermal and Thermochemical Technologies o Combustion Ã¢â¬â convert forestry, agricultural and municipal residues into heat and power under environmentally sound conditions o Gasification Ã¢â¬â convert forestry, agricultural and municipal residues into syngas o Pyrolysis Ã¢â¬â convert forestry and agricultural residues into bio-oils and value added products o Thermal and Catalytic Processing Ã¢â¬â convert a variety of new and used vegetable oils; tall oils; waste greases and animal fats into renewable diesel fuels and diesel blending stocks Ã¢â¬ ¢ Biological and Biochemical Technologies o Fermentation Ã¢â¬â convert the starch and cellulose components of biomass to bio-ethanol o Anaerobic Digestion Ã¢â¬â convertShow MoreRelatedDirect Combustion Of Biomass For Heat Generation1244 Words Ã |Ã 5 PagesDirect combustion is the most common way of converting biomass to energy - both heat and electricity- and worldwide it already provides over 90% of the energy generated from biomass. Direct combustion of solid biomass fuel is well understood, relatively straightforward, commercially available, and can be regarded as a proven technology. Biomass combustion systems can be easily integrated with existing infrastructure. Direct combustion of biomass for heat generation is widely used in cold climate regionsRead MoreBiomass As A Renewable Energy Resource907 Words Ã |Ã 4 Pages3 Biomass as a renewable energy resource Biomass can be considered as a renewable energy resource, although burning biomass releases carbon dioxide (CO2) to the atmosphere similar to burning fossil fuel (Liu H. 2011). There is a significant difference in CO2 release between burning a fossil fuel and burning biomass. Burning a fossil fuel releases CO2 that has been locked up for millions of years in the ground, affecting the natural CO2 cycle and resulting in an increase in the CO2 concentration inRead More Energy Options for the New Millennium Essay1350 Words Ã |Ã 6 PagesEnergy Options for the New Millennium Without electrical energy, society would collapse. Some argue that we would not have the environmental problems that the earth is plagued with today without modern technology, and other critics luddistically suggest relying on a minimal supply of energy and low technology. There are some...who foresee...when all our electricity will be solar...It is a world of low technology and a simpler life...They call it living in harmony with nature, but it mightRead MoreAdvantages Of Biofuel And Feedstock Production1553 Words Ã |Ã 7 Pagesproduction used to manufacture biomass energy. There will be an in-depth analysis of the feedstock needed as well as its impacts in terms of science, engineering, social and environment, economic and politic. Background It is well known that most of the activities depend on the fuel, especially petroleum based fuels like fossil fuel, gasoline and diesel fuel. As the demand for fuels increasing rapidly, biomass becomes one of the most alternative technologies used to produce liquid fuels. AccordingRead MoreA Brief Note On Pulp And Paper Green Transformation Program1334 Words Ã |Ã 6 PagesEstablished in 2006. Source: http://fednor.gc.ca/eic/site/fednor-fednor.nsf/eng/h_fn02348.html Ã¢â¬ ¢ Pulp and Paper Green Transformation Program Ã¢â¬â Natural Resources Canada Ã¢â¬â Funding to achieve measurable environmental benefits through energy efficiency improvement, renewable energy production or emission reductions at CanadaÃ¢â¬â¢s pulp and paper mills. Program in operation from 2009-2012. Source: http://cfs.nrcan.gc.ca/pages/231 Ã¢â¬ ¢ Renewable Fuels Regulations Ã¢â¬â Environment Canada Ã¢â¬â Federal regulations requiringRead MoreThe Different Performances Of Different Types Of Fuel Essay1696 Words Ã |Ã 7 PagesHeat. almost a whole page. Biomass: Biomass is organic matter derived from living, or recently living organisms. Biomass can be used as a source of energy and most of the time it refers to plants or plant-based materials that are not used for food, and are specifically called lignocellulosic biomass. As an energy source, biomass can be used directly by combustion to produce heat, or indirectly after converting it to different forms of biofuel. The conversion of biomass to biofuel can happen by differentRead MoreEssay about Biomass as an Alternative Energy1701 Words Ã |Ã 7 PagesBiomass Abstract: The current use of energy in the United States, especially California, is foreshadowing catastrophe in our environment. Due to high demand of fossil fuels, the air is filled with more pollution every day. In addition to, it can increase the chances of having global warming. Since fossil fuels are generated from raw materials which are easy and cheap users are becoming extremely dependent on them. The main problem with fossil energy is that the supply of fossil fuels is notRead MoreGreatpoint Energy : An Alternative Source Of Energy712 Words Ã |Ã 3 PagesGreatPoint Energy Company Description- GreatPoint Energy specializes in producing of clean and low cost natural gas using coal, petroleum coke and biomass. GreatPoint energy (GPE) has developed a catalytic hydromethanation process known as bluegasÃ¢â ¢ which is used for this conversion process. GreatPoint Energy prides themselves for their highly efficient, and environmentally safe product. Even more fascinating is that the natural gas produced is interchangeable with drilled gas and there is no needRead MoreRenewable Energy And Solar Energy921 Words Ã |Ã 4 Pagesrenewable energy . Most of these renewable energies depend in one way or another on sunlight. Wind and hydroelectric power are the direct result of differential heating of the Earth s surface which leads to air moving about (wind) and precipitation forming as the air is lifted. Solar energy is the direct conversion of sunlight using panels or collectors. Biomass energy is stored sunlight contained in plants. Other renewable energies that do not depend on sun light are geothermal energy, which isRead MoreRenewable Energy Sources And The Global Warming1503 Words Ã |Ã 7 PagesRenewable energy sources LetÃ¢â¬â¢s ask ourselves that when the erosion able elements of the earth is not achievable anymore and the glob is getting warmer day by day, what we are going to do to satisfy our requirements, and wants? How we can reduce global warming, decrease the negative impacts of greenhouse gas emission? What are some other natural origins by which we can continue our lives without hurting other existences in the earth? All these problems can be solved if we use renewable energy sources
Wednesday, May 13, 2020
Ã¢â¬ËFor me, the story is less a horrorÃ¢â¬ ¦than a larger than life gothic fairytaleÃ¢â¬â¢ (Kenneth Brannagh) How far and in what ways do you agree with this description of the text? Mary ShelleyÃ¢â¬â¢s Frankenstein is a novel which forces the reader to question whether it is a simple horror story or whether it is a gothic fairytale of many depths. Frankenstein is considered by many critics as the first modern horror story ever written, and it opened a whole new world of ideas for novels and has inspired many similar works since its publication in 1818. As we see by the prelude, ShelleyÃ¢â¬â¢s first ambition is to horrify the reader as she describes wanting to Ã¢â¬Ëawaken thrilling horror - one to make the reader dread to look around, to curdle the blood andÃ¢â¬ ¦show more contentÃ¢â¬ ¦For many readers, Frankenstein is much more than a simple horror story, it is a story about family, abandonment, the consequences of the quest for knowledge, and many other themes which influence the path of the story. One of the most notable themes within the novel is the idea of good versus evil. This theme adds extreme depth to the text, as the reader is left to decide w hich character is good and which is evil. ShelleyÃ¢â¬â¢s use of intertextuality in the novel emphasises her point, especially with the inclusion of the strong influence that MiltonÃ¢â¬â¢s Paradise Lost has on the monster. I am thy creature: I ought to be thy Adam, but I am rather the fallen angel, whom thou drivest from joy for no misdeed. From the moment he is created, we, like the monster question whether he is Adam, or the fallen angel, and therefore wonder whether it is he or Victor which is the creature of evil. The tale of Frankenstein leads the reader into the logic of creation and of the mind, and through her thoughts on good versus evil; Shelley also forces the reader to look even further beyond the horror of the novel to the idea of the doppelganger effect. In the National TheatreÃ¢â¬â¢s production of the novel, the two main characters switched the roles of Victor and the monster, emphasizing the point that both characters could be in fact
Wednesday, May 6, 2020
Within William ShakespeareÃ¢â¬â¢s play, Ã¢â¬ËMacbethÃ¢â¬â¢, the destructive nature of power is immensely explored. The nature of power is obliquely and inevitably expressed through MacbethÃ¢â¬â¢s ambitious drive for supremacy, the unknown and distraught notion of fate and free will, as well as a personal reaction towards the concept of power. Although, the majority of the play is based on the destructive nature of power, the moral nature of power is also portrayed, in spite of the evil. We will write a custom essay sample on Macbeth- the Destruction of Power or any similar topic only for you Order Now Macbeth was naturally an ambitious man, who constantly desired more. However, he was greatly influenced by his wife Lady Macbeth, for in the beginning MacbethÃ¢â¬â¢s nature was Ã¢â¬Å"too full o[f] the milk of human kindnessÃ¢â¬ . Lady MacbethÃ¢â¬â¢s provocation encouraged the evil residing in Macbeth and his ambition only increased Ã¢â¬Å"I have no spur to prick the sides of my intent, but only vaulting ambition, which oÃ¢â¬â¢erleaps itself and falls on the other. Ã¢â¬ The weird sisters were aware of his overpowering determination and were able to manipulate him into believing he had the potential to gain Ã¢â¬Å"absolute powerÃ¢â¬ . Via these strong influences and his unfathomable ambition, Macbeth went to great extents to retrieve ultimate power, essentially transforming into a tyrant within the process. MacbethÃ¢â¬â¢s level of free will is questionable, for it seems that despite the triggers of his ferocious actions, he was an exceptionally hubris man. The witches can be depicted as advocators for fate, rather than fate itself and with the support of manipulation, they were able to convert Macbeth into an ignorant autocrat. Ã¢â¬Å"Fair is foul and foul is Fair. Weird sisterÃ¢â¬â¢s prophecies were not what they seemed. Although, Macbeth received various triggers that led to his destiny, it is likely that he would have received the same fate, had the witches not interfered. Ã¢â¬Å"IÃ¢â¬â¢ll make assurance double sure, And take a bond of fate. Ã¢â¬ Macbeth attempts to control fate by murdering his possible threats to power. Macbeth was ambitious at heart and clearly a power driven man, whom takes pride i n his masculinity and in essence already on the pathway to destruction. Macbeth was too focused on gaining his own power and control, to comprehend the issues arising against him. As Macbeth aspired to optimum power, he gradually began to dehumanise. Ã¢â¬Å"What need we fear who knows it, when none can call our power to account? Ã¢â¬ Lady Macbeth questions whether the guilt and anxiety of murdering these loyal people was worth the power or lack of it. The weird sisters manipulated Macbeth into believing he was invincible, resulting in irrational acts of terrorism against the people of Scotland. Murder, betrayal, torture and cruelty were inflicted upon all of MacbethÃ¢â¬â¢s followers on a regular basis, whom were forced to obey him. Ã¢â¬Å"I am in blood, stepped in so far, that, should I wade no moreÃ¢â¬ Macbeth went too far, to withdraw and developed into a tyrannical leader for the simple reason he had the power to do so. What he chose to do with his power lead to his corruption, although, not all choose the wrong path. There are some individuals born to lead and gain power, with the intention of goodness and then there are others who do not retain the ability to effectively control their power. Duncan and Malcolm both emanate morality, with the aspiration to improve and support their country, Scotland. Ã¢â¬Å"But I must also feel it as a man,Ã¢â¬ Malcolm exclaims as he understands he must feel compassion In order to become a respectable leader. The destructive nature of power is explored in many aspects throughout the play, for each individual reacts differently. Macbeth was ambitious at heart and easily influenced to commit such brutality against his own people. However, Malcolm and Duncan were able to harness and control their power with intention of supporting their country to the best of their abilities. MacbethÃ¢â¬â¢s fate seemed inevitable despite the weird sisterÃ¢â¬â¢s interference, for he already retained the qualities of an ambitious tyrant. Macbeth ultimately desired power with fierce determination and eventually received it. Once he had acquired all power, he became ignorant and apparently Ã¢â¬ËinvincibleÃ¢â¬â¢ ultimately resulting in his destruction. How to cite Macbeth- the Destruction of Power, Papers
Monday, May 4, 2020
Essay on The Importance of Extracurricular Activities Essay The Importance of Extracurricular ActivitiesImagine walking across the stage in just a few years from now. Having thousands of eyes pointed at you as you take that emotional walk to finally receive your high school diploma. After a few years when you have graduated high school and started life, youre going to look back and think, what have I accomplished so far? Extracurricular activities can be very beneficial for students now, and those in the future as well. They can allow you to feel like you have accomplished something while in school. Extracurricular activities are important because they can benefit a student through personal, educational, and even social means. It is a great idea to get more students involved in extracurricular activities and parents should begin to give their kids a little push to get them more involved.Extracurricular activities can benefit students greatly through their personal lives and well being. According to Justin Coulson in his article on kidspot.com, students that are involved in extracurricular activities, such as sports or clubs, are generally healthier than those who do not participate. Extracurricular activities can help raise studentÃ¢â¬â¢s self esteem and self awareness as stated by Joy Burgess in her article, Ã¢â¬Å"Extracurricular School Activities and the BenefitsÃ¢â¬ at more4kids.info. Being involved allows the student to learn about the skills and talents they already have and can teach them new ones such as time management, organization, and prioritizing skills. It also allows the students to realize what they are good at or enjoy doing (Burgess). As similarly described by the College Board staff at collegeboard.org, extracurriculars can enable you to learn your personal talents, interests, . .eing Involved in Extracurricular Activities in High School. Ã¢â¬ Everyday Life. Global Post, 2014. Web. 04 Feb. 2014.OÃ¢â¬â¢brien, Eileen, and Mary Rollefson. Ã¢â¬Å"Extracurricular Participation and Student Engagement.Ã¢â¬ Extracurricular Participation and Student Engagement.U.S. Department of Education, June 1995. Web. 06 Feb. 2014.Pappas, Stephanie. Busy Kids: Overscheduling Worries Overstated. LiveScience. TechMedia Network, 10 Apr. 2011. Web. 13 Mar. 2014.Rizzolo, Allison. PUBLICAGENDA. ORG Survey: Sports, Arts, Clubs, Volunteering Out-of-School Activities Play Crucial, Positive Role for Kids. Survey: Sports, Arts, Clubs, Volunteering Out-of-School Activities Play Crucial, Positive Role for Kids. Public Agenda, 16 Nov. 2004. Web. 5 Mar. 2014WNCN Staff. Ã¢â¬Å"The Benefits of Extracurricular Activities.Ã¢â¬ WNCN: News and Weather. WNCN, 07 Oct. 2013. Web. 11 Feb. 2014.
Sunday, March 29, 2020
Jay Ryan 3/25/99 American Enterprise: It's Worth Fishing For It was about 10:00 at night when my father enters my room and awakens me to get ready for our over night fishing trip. A long drive was ahead of us so I took the liberty to get some sleep. We finally made it to the boat dock around 11:00 and ended up leaving the harbor around midnight. Once more I had a long trip ahead of me so again I fell asleep. At around 4:00 in the morning I was awakened to the loud clanging of a bell. I had remembered that the captain of the boat had mentioned that if a bell were to sound that all passengers were to report to the deck immediately. The bell was more or likely a sign of boils. Boils were the bubbles in the water created when tuna was swimming around a school of bait. So of course I jumped up and ran with anticipation that we would be fishing so soon. Yet when I finally reached the deck I had found that the captain was merely having a test on how prompt the passengers were. Extremely disappointed and annoyed that first off the captain had that ner ve to wake me and then there weren't any fish, I retreated to my bunk. Once again I was awakened to the sound of a clanging bell. Unsure what the captain had to offer up on the deck I contemplated whether or not I should return to the deck. Remembering that I was adventurer, I took the risk and quickly jumped up, ran up the stairs, and once more was on the deck. This time I was greeted by a very bright sun and quickly ran to get my pole. Upon retrieving my pole I heard some one yell, "Boils off the bow" with out thinking twice I grabbed the anchovy, baited my hook, and dropped the bait over the side of the boat with high hopes that a tuna fish would find it most desirable. Yet time and time again I was unsuccessful. Seeing that everyone else on the boat wasn't having quite as hard of a time as me I was quickly becoming discouraged. Down to one my last anchovies I decided what the heck I might as well give it one more try. Once more I tossed the anchovy over the side of the boat and watched as it suddenly swam out of sight and then instantly my line began to run in a frenzy. Up and down, left and right, and any which way that fish felt he could get away. Feeling the tension on the string I slowly reeled him in. The closer and closer he got the more of a fight he put up. Adrenaline now took over my system. Seeing the fish I became overwhelmed with excitement, don't forget it had taken me about an hour to finally get a bite. With the fish in my grasp the line suddenly snapped. It was so close; it had to have been at least a 10-pound catch. With the excitement of the previous battle going through my mind I wasn't giving up now. My last anchovy, it's my pride, against the survival of a tuna. I ended that day with a 15-pound catch. It had been the largest fish caught on that boat. While sitting in my economics class, we were asked to evaluate the American Enterprise System and compare it to a modern day scenario. Of course my fishing trip stood out like a sore thumb. I then took each part of the trip and analyzed it. First off the false alarm by the captain represents Communism. Communism gets you all excited and wanting to get started yet when you finally arrive you find nothing. A matter of fact you find your self stranded in the middle of darkness wondering why you even got up. The only thing for a citizen under communist power can do is act much like I did and retreat. Now the American Enterprise System is what I awoke to the next morning. You find that skepticism is present and you don't know whether to lay there in bed or get
Saturday, March 7, 2020
Natural Mosquito Repellents When I was pregnant, I wanted to avoid using toxic chemical insect repellents, yet the mosquitoes seemed to find me tastier than ever. My solution at that time was to wear what I called my DEET sheet, which was an old cotton sheet that had been sprayed with S.C. Johnsons Off! Deep Woods formula. While this was highly effective, it wasnt practical for use around kids, so I did research into safer, natural mosquito repellents. I learned that many so-called natural mosquito repellents dont repel mosquitoes (e.g., ultrasonic electronic devices), but some are backed by reputable research and really work. Key Takeaways The two ways to repel mosquitoes are to attract them away from you or to repel them directly.Mosquitoes are often repelled by plant essential oils, especially lemon eucalyptus oil.Even the best repellent may be compromised by a reaction with sunscreen, dilution in water, absorption into the skin, or evaporation into the air. Its important to re-apply repellent to maintain its effectiveness. Mosquitoes have complex methods of detecting hosts and different types of mosquitoes react to different stimuli. Most mosquitoes are active at dawn and dusk, but there are also mosquitoes that seek hosts during the day. You can avoid being bitten by making sure you arent attracting mosquitoes, using attractants to lure mosquitoes elsewhere, using a repellent, and avoiding actions that diminish the effectiveness of the repellent. Mosquito Attractants Use this list of items and activities that attract mosquitoes as a list of things to avoid or that can be used as bait to lure mosquitoes away from you. Dark ClothingMany mosquitoes use vision to locate hosts from a distance. Dark clothes and foliage are initial attractants.Carbon DioxideYou give off more carbon dioxide when you are hot or have been exercising. A burning candle or other fire is another source of carbon dioxide.Lactic AcidYou release more lactic acid when you have been exercising or after eating certain foods (e.g., salty foods, high-potassium foods).Floral or Fruity FragrancesIn addition to perfumes, hair products, and scented sunscreens, watch for the subtle floral fragrance from fabric softeners and dryer sheets.Skin TemperatureThe exact temperature depends on the type of mosquito. Many mosquitoes are attracted to the slightly cooler temperatures of the extremities.MoistureMosquitoes are attracted by perspiration because of the chemicals it contains and also because it increases the humidity around your body. Even small amounts of water (e.g., moist plants or mud puddles) will draw mosquitoes. Standing water also a llows mosquitoes to reproduce. Blood TypePerson with type O blood are more attractive to mosquitoes than those with A, B, or AB blood. This blood type is rare, but if you have a friend or family member with type O blood, mosquitoes (and the Red Cross) like them better than they like you. Natural Mosquito Repellents Its very easy to make your own natural mosquito repellent. These natural products will effectively repel mosquitoes, but they require more frequent reapplication (at least every 2 hours) and higher concentrations than DEET. Because of the differences between types of mosquitoes, products that contain multiple repellents tend to be more effective than those containing a single ingredient. As you can see, natural repellents tend to be volatile plant oils. Citronella OilLemon Eucalyptus OilCinnamon OilCastor OilRosemary OilLemongrass OilCedar OilPeppermint OilClove OilGeranium OilCatnip OilTobaccoNeem OilBirch Tree BarkPossibly Oils from Verbena, Pennyroyal, Lavender, Pine, Cajeput, Basil, Thyme, Allspice, Soybean, and Garlic Another plant-derived substance, pyrethrum, is an insecticide. Pyrethrum comes from the flowers of the daisy Chrysanthemum cinerariifolium. Things that Lower Repellent Effectiveness Despite your best efforts, you may be unintentionally sabotaging your repellents effectiveness. Mosquito repellent doesnt play nicely with: Many SunscreensDilution From Rain, Perspiration, or SwimmingAbsorption Into the SkinEvaporation From Wind or High Temperatures Keep in mind that natural does not automatically imply safe. Many people are sensitive to plant oils. Some natural insect repellents are actually toxic. Therefore, although natural repellents provide an alternative to synthetic chemicals, please remember to follow the manufacturers instructions when using these products. Source M. S. Fradin; J. F. Day (2002). Comparative Efficacy of Insect Repellents against Mosquito Bites. N Engl J Med. 347 (1): 13Ã¢â¬â18. doi:10.1056/NEJMoa011699
Thursday, February 20, 2020
Role played by Housing in Relation to Urban Regeneration in London - Essay Example However, housing in London contributes to urban regeneration indirectly because it has relationships with various other physical, environmental, social, cultural, and economical issues that result to urban regeneration. In London, the contribution of housing towards urban regeneration can be divided into two broad parts; indirectly contributions (housing plus) and direct contributions (Stouten 2010, p. 46). These two types of housing contributions towards urban regeneration has impacts on all levels of regeneration such as national, individual, and local levels.From the year 1850 onwards, the condition of urban poverty in the LondonÃ¢â¬â¢s slums started to draw the interest of most social reformers as well as philanthropists. The social reformers as well as the philanthropists due to the increased urban poverty in London slums started a movement to ensure implementation of social housing, which highly contributed to urban regeneration. Their fast target was one of the biggest and n otorious slums in London known as DevilÃ¢â¬â¢s Acre, which is near Westminster (McCarthy 2006, p. 68). This is clear evidence that housing played a vital role towards urban regeneration in London as well as in other countries. The founders of this new social housing movement were George Peabody and Peabody trust who had great impact towards urban regeneration in London.Clearance of slums in London started with all Rochester buildings around the Perkin and Old Pye Streets whose constructions took place in the year 1862.