Direct Exchange Geothermal Heat Pump Essay Example

Direct Exchange Geothermal Heat Pump Essay Example Direct Exchange Geothermal Heat Pump Essay Direct Exchange Geothermal Heat Pump Essay Direct exchange Direct exchange geothermal heat pump The Direct exchange geothermal heat pump is the oldest type of geothermal heat pump technology. It is also the simplest and easiest to understand. The ground-coupling is achieved through a single loop circulating refrigerant in direct thermal contact with the ground (as opposed to a combination of a refrigerant loop and a water loop). The refrigerant leaves the heat pump appliance cabinet, circulates through a loop of copper tube buried underground, and exchanges heat with the ground before returning to the pump. The name direct exchange refers to heat transfer between the refrigerant and the ground without the use of an intermediate fluid. There is no direct interaction between the fluid and the earth; only heat transfer through the pipe wall. Direct exchange heat pumps are not to be confused with water-source heat pumps or water loop heat pumps since there is no water in the ground loop. ASHRAE defines the term ground-coupled heat pump to encompass closed loop and direct exchange systems, while excluding open loops. Direct exchange systems are significantly more efficient and have potentially lower installation costs than closed loop water systems. Coppers high thermal conductivity contributes to the higher efficiency of the system, but heat flow is predominantly limited by the thermal conductivity of the ground, not the pipe. The main reasons for the higher efficiency are the elimination of the water pump (which uses electricity), the elimination of the water heat exchanger (which is a source of heat losses), and most importantly, the latent heat phase change of the refrigerant in the ground itself. While they require much more refrigerant and their tubing is more expensive per foot, a direct exchange loop is shorter than a closed water loop for a given capacity. A direct exchange system requires only 15 to 30% of the length of tubing and half the diameter of drilled holes, and the drilling or excavation costs are therefore lower. Refrigerant loops are less tolerant of leaks than water loops because gas can leak out through smaller imperfections. This dictates the use of brazed copper tubing, even though the pressures are similar to water loops. The copper loop must be protected from corrosion in acidic soil through the use of a sacrificial anode or cathodic protection.

Are You One of These 4 Toxic Workplace Personalities

Are You One of These 4 Toxic Workplace Personalities There are a million ways to screw up at work, and we like to think we avoid most of the obvious pitfalls. But here are a few work types you might not realize you resemble from time to time. 1. The MinimalistYou know who you are. Someone asks you for a status update on a project and you answer, â€Å"I did my part,† without following through. How much longer would it take you to trace that project through the chain and give a more comprehensive answer? To take responsibility for the task, not just your fraction of a task? You won’t be able to do this every time you’re asked, so why not take the initiative when you can and go the extra mile?2. The Negative NellyYou might think you’re an upbeat, positive person. But it’s possible you’re the workplace downer. Do you groan at each new daunting project? Weigh the cons before the pros? Complain about the extra work and hours, rather than get psyched about that new high-profile project? Make sure you keep the glass half full and distinguish yourself as a leader among your colleagues.3. The DisappointmentYou think you’re a hero because you take on so much more than everybody else- but that’s also more than can be reasonably expected. Overcommitting can sometimes lead to underperforming, missed deadlines, monster to-do lists, and disappointment. You certainly don’t want to be guilty of the opposite (never taking extra work on), but if you do step in to pinch hit, remember to make sure you have your stance in order.4. The ShockerYou’ve taken on a bit more than you can chew, and things have been going in a disastrous direction. But you haven’t let your boss in on the details, and as the big presentation rolls around, you have to drop a bomb. If only you’d shared the difficulties as they popped up along the way- your colleagues could have helped out before the situation deteriorated. But you didn’t. And now†¦ disaster.These workp lace traits turn up in every office. There’s always someone guilty of these office faux pas, and- if you aren’t careful- it could be you!Are You a Boss Botherer? Be Sure to Avoid This Workplace Behavior

Final Exam Essay Example | Topics and Well Written Essays - 750 words - 3

Final Exam - Essay Example On the day of Pentecost which is accounted for in the book of Acts chapter 2 from verse 1 to 4, the Holy Spirit descended upon the disciples. It began by the blowing of strong and violent winds then what seemed like tongues of fire rested upon each one of them and finally they each spoke in strange and different tongues as each of them was enabled by the Holy Spirit. The Holy Spirit had a lot of impact in the lives of the disciples and He prompted Peter to stand and address the crowd that had gathered around them. In his address, he referred to the prophecy of Prophet Joel in which the coming and manifestation of the Holy Spirit was prophesied. Therefore, what occurred on the Day of Pentecost was fulfillments to that prophesy. He went ahead to speak of how the coming of the Holy Spirit and Jesus Christ had been revealed to David who was among the patriarchs of Israel. Through his message, many Jews believed and they were baptized. The coming of the Holy Spirit marked a turning point in the life of the disciples and they were scattered all over the world to spread the gospel of Christ with boldness. ... 2. The title Messiah was used in the Old Testament to refer to the kings in the line of David who were anointed by priests. In the book of Luke chapter 4 and verse 18, Jesus Christ rose to read from the prophesies of Isaiah referring to Himself as the anointed one of God to preach the good new to the poor and to set the captives free (Bauckham, 308) Peter talks of Christ as the Messiah in Acts 10 verse 38 and how He was anointed by God to set free the oppressed by the devil and to heal those who were sick. However, the view of Christ about the Messiah was somehow different from what the Jews expected. The misunderstood concept of the Messiah is revealed in John chapter 4 verses 25 when Jesus was speaking with the Samaritan woman. She was shocked to learn that Jesus was the Messiah because she thought the Messiah had not yet come. The Pharisees expected the Messiah to be a military person who will liberate them from oppression by the Romans by wedging a physical battle with them. Jesu s stood in sharp contrast to their expectation by advocating for a spiritual battle and not a physical battle. He portrayed Himself as a peaceful Messiah who entered Jerusalem while riding on a colt. The disciples too were confused and wondered at first if Jesus was the Messiah but they understanding of Him changed as He continued to reveal Himself to them. 3. Covenant forms a very integral part of the bible. Covenant refers to an agreement between two parties and they agree to be bound. There are several elements that make up a covenant which include a sign, witness, promise and the parties involved. God made several covenants with people in the bible. The first covenant that God made with man was with Noah. God told Noah to

U05a1 Project - Outline and Bibliography Assignment

U05a1 Project - Outline and Bibliography - Assignment Example Retrieved 9 august, 2009 from http://www.sas.com/technologies/architecture/information-management/index.html Galrahn. (2009). The great debate about the future fleet structure. Information Dissemination.net. Retrieved 9 august, 2009 from http://www.informationdissemination.net/2009/02/great-debate-about-future-fleet.html Heller, R. (2006). Management Challenges: The Management Revolution has brought with it challenges that must be met. Thinkingmanagers.com. Retrieved 9 August, 2009 from http://www.thinkingmanagers.com/management/management-challenges.php Linton, R.D. (2003). Information dissemination management tactical: Providing information at the right place and format. Army Communicator, Winter (III), Retrieved 9 August, 2009 from http://findarticles.com/p/articles/mi_m0PAA/is_4_28/ai_n6118597/ Moseley, M. (2009). Multidomain master data management for business success. IInformation Management and Sourcemedia Inc. Retrieved 9 August, 2009 from http://www.information-management.com/specialreports/2009_153/mdm_master_data_management_analytics_manufacturing_marketing-10015747-1.html Svenkerud, P. J. (1995). Testing the applicability of two information dissemination models, diffusion of innovations and social marketing, for HIV/AIDS prevention among unique population groups in Thailand. Ohio: Ohio

Legalization of Assault Rifles Debate: Personal Opinion

Legalization of Assault Rifles Debate: Personal Opinion Nathan Eakin When faced with a situation that puts harm into the family’s life, anyone would like reliable weapon to protect them. Assault rifles are an accurate weapon and that’s why a lot of gun enthusiast collect them and build them. Coming from the standpoint of an enthusiast, a lot of people rarely get out and shoot all their guns that they have. Now the only thing everybody hears is people talking negatively about them, and about how dangerous they are. If the government banned the semi-auto assault rifle it would cause a huge wave of a black markets and a lot of fighting if they tried to come abolish already owned weapons. But still they are trying to change the Second amendment even though it declares the right to bear arms which then can be extended to semi-auto weapons that are now getting debated on the legalization (Acosta, Luis). The modern assault rifle was made back at the end of World War 2 and Vietnam. There have been several different types of assault weapons made. Back in 1963 the first AR like guns were sold to the public. There are several different types of assault weapons made. And most of these are available to the public. The M16 and M1A1 were the first modern assault rifles. They were used in the military through Vietnam. Now mainly all for sale is the AR15. The AR15 uses .223 rounds and some can shoot the 5.56 (†The Truth About Assault Weapons†). These are the main weapons that are being debated on. A lot of people don’t actually know what assault weapons are. Now there are so many types of old military weapons that are open to the public. There are lots of types of semi-auto weapons for sale. These weapons you can pretty much go anywhere and buy them. You also can obtain full automatic weapons through a long process of back ground checks and fingerprints. All of these assault weapons are getting debated now. This whole debate isn’t just on one gun either. It’s on several different weapons, magazines, ammunition amounts. They disagree on a lot of these things. The NRA is a huge group that is against the banning of all these weapons. They have several different classes you can take for safety, basics, and all hunting tutorials. The NRA is a huge group with thousands of members that all are gun enthusiasts that know all about the real use for weapons. They are a great organization to talk to about some of the information and the sides to this debate (James A. Peden and Mark Yaworski). The banning of assault rifles would cause a huge fight in the United States. Most of the people that use the assault rifle are professionals that use them for a lot of competitions. A lot of people are against it just because they have large magazines and they can be shot in a very fast manner. They think they are some kind of killing machine, even though it’s not guns that kill people, people kill people. Even though 69% of murders used with firearms are with pistols and shotguns not assault rifles. This shows that assault weapons aren’t the most dangerous thing out there. Even though all the professionals have been shooting for several years, and more than likely have their conceal carry permit and have went through so many different types of classes of safety people still worry about them. There is a lot of time and dedication to obtain this permit. First you have to get a back ground check, and then you have to get a fingerprinted. Last you have to get approved by t he sheriff’s office. There are a lot of classes a lot of them take for safety and practice. This helps the person with their overall shooting ability. They all have been trained in great manners and banning this gun could hurt the professional’s careers. A lot of people use these weapons to protect them. Assault rifles are an overall great gun to use for protection around the home. They are an accurate weapon, if you need to shoot several times you can. Everybody knows the look of these guns, and the crook or robber probably would immediately run as soon as he saw it in your hands. He would more than completely second guess trying something that could possibly hurt you. It’s a great weapon to teach your kids how to shoot and how to safely operate a weapon. It’s not a terribly loud gun and it doesn’t kick much, and it’s just a .223 which is very small rifle round. They guns are very accurate up to long ranges and can be an accurate weapon at short and close shots to. The way these guns are made is to shoot several rounds at a fast past and to be able to keep the gun in the same spot. These weapons are what most of the military personal use. That kind of shows how amazing these guns are. In the long run they are a great weapon to have around the house and a great weapon to protect your family with. Even people that are doing research on this exact topic find that 69% of firearm murders happen with pistols and hunting weapons like shotguns. Pistols are such a small weapon but can sure pack a punch. They can be easily hidden anywhere, some are decently accurate depending on the shooter, and you still have 14 rounds in most magazines. And most of people against this topic always bring up the magazine capacity, even though some are 10 and some are 30. But still assault rifles aren’t too much more powerful at the same range as pistols. Assault rifles are great at long distances but still a pistol you can put in your pocket and have 15 rounds ready to go. With an assault rifle they would see you carrying a big gun into wherever you are and everybody would freak out. Assault rifles aren’t made for close range especially if you have a zoomed optic so it’s pointless to use one close. All these points really show that assault rifles aren’t meant to hurt people . They are used for long range target practice, coyote hunting, etc. Despite all the information on my side, most of the other people on the other side think about how dangerous the weapons are to them and everyone around them. They think that since they can carry several rounds and they can be shot at high rates of fire they are bad weapons for people to have. Even though you have to go through a lot of papers, back ground checks, fingerprints, etc. Some people just don’t trust other people which is understandable, but it’s not fair for most of the people that just want to shoot and hunt with. People now have to go through all these processes to just get a gun. Even some weapons that are classified in class A and B you have to go through longer processes that can take several months just to get the weapon you want. To conclude this paper, the decision they should make is assault rifles shouldn’t be debate or banned in any form. I can understand regulating the magazine size and categorize it as a class 2 type of material. From all the details and research that has been done it’s safe to say that assault rifles aren’t the most dangerous think out there. Pistols and hunting weapons still come in with the higher percentages. Not only are assault rifles very high in price, mainly gun enthusiasts are the only ones interested in these weapons. In the end it would cause several different problems for all of America. It could cause some people to attack back against the law ans government. It could cause a huge black market of assault weapons which can make everything a lot harder for people to solve murders because the gun wouldn’t be registered to anyone. All these reasons show that banning assault weapons wouldn’t be the best idea. Works Cited Acosta, Luis. United States: Gun Ownership and the Supreme Court. Second Amendment. N.p., n.d. Web. 17 Sept. 2014. http://www.loc.gov/law/help/second-amendment.php Everything You Need to Know about the Assault Weapons Ban, in One Post. Washington Post. The Washington Post, n.d. Web. 17 Sept. 2014. http://www.washingtonpost.com/blogs/wonkblog/wp/2012/12/17/everything-you-need-to-know-about-banning-assault-weapons-in-one-post/ GUN CONTROL and THE SECOND AMENDMENT. GUN CONTROL and THE SECOND AMENDMENT. Tntech, n.d. Web. 17 Sept. 2014.http://iweb.tntech.edu/kosburn/history-201/second-amendment.htm James A. Peden and Mark Yaworski. And, You Can Join the NRA Right Now..click Here. National Rifle Association Information Page. Vermont Friends of the NRA, n.d. Web. 29 Sept. 2014. http://www.middlebury.net/nra/ Mathews, Jake. For Lives and Liberty: Banning Assault Weapons in America. The Institute of Politics at Harvard University. N.p., n.d. http://www.iop.harvard.edu/lives-and-liberty-banning-assault-weapons-america Sherfinski, David. Six in 10 Favor Ban on Semi-automatic Weapons: Poll. Washington Times. The Washington Times, n.d. Web. 17 Sept. 2014. http://www.washingtontimes.com/news/2014/jan/2/poll-6-10-favor-ban-semi-automatic-weapons/ The Truth About Assault Weapons. The Truth About Assault Weapons. N.p., n.d. Web. 25 Sept. 2014. . United States Senator Dianne Feinstein. Assault Weapons Ban Summary. Senator Dianne Feinstein, n.d. Web. 17 Sept. 2014. http://www.feinstein.senate.gov/public/index.cfm/assault-weapons-ban-summary

How Much Land Does a Man Need Essay

Realism, as the word implies, deals with reality as its subject, that is, putting emphasis on what is happening in the real world, rather than stressing emotions as a source of aesthetic experience. In literature, it often focuses on moral or ethical choices such that it gives emphasis on the actions by the characters rather than the actual plot of the story. Characters are also portrayed with motive, more often than not, in relation to the view of their social class. In realism, sensational and dramatic elements that are often found in naturalism and romances are avoided. The short stories â€Å"The Bet† and â€Å"How Much Land Does a Man Need? † are examples of literature in the style of realism which focuses on the ethical choices of the characters in relation to their social class. â€Å"The Bet† focuses on the materiality of the world. It gave contrasts to the materialistic world view of the banker, and the simplicity of the young man in the story. Although the question at the beginning is whether or not the death penalty is worse than life imprisonment, the story has not given an answer to it (it was not its intention to answer this anyway), but rather, it presented views of morality. It altogether despises materiality. The young man at the end of the story proclaimed: â€Å"It is all worthless, fleeting, illusory, and deceptive, like a mirage†¦ I marvel at you who exchange heaven for earth. I don’t want to understand you† (Chekrov). Like â€Å"The Bet,† â€Å"How Much Land Does a Man Need? † criticizes the human sense of materiality. The story, however, shifts its focus on greed. It differs with â€Å"The Bet† in the sense that while â€Å"How Much Land Does a Man Need? † does not necessarily condemn acquiring material possession in this world, it presented a question of how much of this material possession does man really need. Pahom, the main character in the story, was given the opportunity to acquire land of his own, but was overcome by greed many times throughout the story. In the end, this greed was the cause of his death. The moral of the story is that man should only take what is necessary for living, nothing in excess. The story also implies that man cannot take in death what man possess in life. Works Cited Chekrov, Anton. â€Å"The Bet† Tolstoy, Leo. â€Å"How Much Land Does a Man Need†

Madame Sosostris in T.S. Eliots The Wasteland - 1428 Words

Madame Sosostris Lines 43-59 of T.S. Eliot’s The Waste Land present Madame Sosostris as the Tarot card-reading psychic who bears bad news. While this stanza has been interpreted in a myriad of ways, two important features are commonly regarded as Eliot’s intent. (1) The clairvoyant is considered â€Å"the wisest woman in Europe† because the world is a tattered wasteland where everyone is in search of answers – a fortuneteller provides false security with her seemingly absolute understanding of destiny, and everyone is desperate enough to believe her. (2) Because Eliot regards fortunetelling as little more than empty consolation for the desperate, he writes with levity to poke fun at the concept. These two points comprise the general gist of†¦show more content†¦However, Sosostris could be referring incorrectly to the Queen of Cups, which shows an attractive woman near cliffs. The Queen of Cups card is supposed to be indicative of one of two things: (1) a woman wh o is gifted with a high imagination, or (2) a woman who is unreliable and cannot be depended on. Both of these points seem to describe Madame Sosostris accurately. Line 50. The lady of situations. This description is comically vague. Eliot uses unclear language to show that predictions can be accurate regardless of outcome. Situations are bound to happen. Line 51. Here is the man with three staves, and here the Wheel, The man with three staves card is properly referred to as the â€Å"Three of wands.† Not only does Madame describe this card with the improper language of a novice, she completely fails to address the fortune the card is meant to signify: strength and enterprise, or economic failure due to too overly ambitious plans. Despite Eliot’s commentary, â€Å"the Wheel† is not a card in any Tarot deck, unless he is referring to the Wheel of Fortune card, which can signify good or bad luck, depending on whether the card is drawn upright or upside down. Nevertheless, Sosostris never acknowledges the fortune indications of the card but merely mentions it with an incorrect name and moves along. Line 52. And here is the one-eyed merchant,Show MoreRelatedAnalysis of The Wasteland by T.S. Eliot Essay1620 Words   |  7 PagesAnalysis of The Wasteland by T.S. Eliot Q5 Much of what Eliot writes about is harsh and bleak, but he writes about it in a way that is often beautiful. Comment fully on both parts of this assertion. Most first time readers of Eliots work would, probably, agree that his poems read as bleak and depressing. 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