Compressed Natural Gas (CNG) as Transportation Fuel

Compressed Natural Gas (CNG) as Transportation Fuel Use of compressed natural gas, or CNG, as an alternative vehicle fuel is growing in significance with many city-owned fleets converting to the fuel. Though not renewable, CNG still holds some advantages over other fossil fuels such as petroleum. Here are five quick takeaways to help you understand the use of CNG as a transportation fuel. The Safety of Compressed Natural Gas One of the first questions raised about the use of CNG in vehicles is safety. Maybe its because of its stealth persona as an odorless, colorless gas, but natural gas tends to strike fear into people over worries of explosion or related catastrophes. Yet, compressed natural gas has actually grown in popularity because it is seen, by those who actually know the facts, as a safe fuel choice. In fact, its not too hard to see why CNG is actually considered to be safer than gasoline. Natural gas is lighter than air, so a spill wont puddle the way gasoline will nor will it sink close to the ground like propane. Instead, CNG rises into the air and then dissipates in the atmosphere. In addition, CNG has a higher ignition temperature. In other words, its harder to ignite. Finally, CNG storage systems are much stronger than the typical gasoline tank found on a car or truck. Where CNG Comes From So where does CNG come from? The answer lies deep beneath your feet because natural gas is an organic compound, deposited deep within the earth. Although considered an alternative fuel, unlike many of its counterparts, natural gas is a fossil fuel and is primarily methane comprised of hydrogen and carbon. It is estimated that there are enough reachable deposits of natural gas below the Earths surface to last long after stores of petroleum have been depleted, though the supply is not infinite by any stretch. In addition, there is controversy over the environmental impact of fracking, the method used to reach natural gas deposits lying deeper under the Earths surface. Using Natural Gas For Vehicles The process of allowing natural gas to be used by a vehicle begins with natural gas being compressed and entering the vehicle through the natural gas dispenser or other filling means. From there, it goes directly into high-pressure cylinders located somewhere on the vehicle. When the car is accelerated, CNG leaves this on-board storage cylinder, passes along the fuel line and then enter the engine compartment where it enters the regulator which reduces the pressure from as high as 3,600 psi down to atmospheric pressure. A natural gas solenoid valve enables natural gas to move from the regulator into the gas mixer or fuel injectors. Mixed with air, natural gas flows on through the carburetor or the fuel injection system and from there, enters the engines combustion chambers. Compressed Natural Gas Vehicles Although over 25 automakers produce nearly 100 models of natural gas vehicles and engines for the U.S. market, the only CNG vehicle available for personal consumer use is made by Honda. CNGs market in the U.S. has been primarily for transit buses, where over 10,000 are currently used in the country. Its estimated that about one in five buses currently on order are CNG vehicles. But numbers elsewhere around the world are much high with an estimated 7.5 million natural gas vehicles on the streets globally. Thats twice what there was as recently as 2003. Its forecasted that by 2020, more than 65 million NGVs will be in use worldwide. CNG is Cost Effective CNG is also economically attractive. The U.S. Department of Energy has reported that the average nationwide price of a gallon of gas equivalent of CNG was as low as $2.04 per gallon in recent years. Prices are even lower in some areas of the country. Local and state governments have reported having their fuel bills cut in half by increasing the use of natural gas vehicles.

Compressed Natural Gas (CNG) as Transportation Fuel

Compressed Natural Gas (CNG) as Transportation Fuel Use of compressed natural gas, or CNG, as an alternative vehicle fuel is growing in significance with many city-owned fleets converting to the fuel. Though not renewable, CNG still holds some advantages over other fossil fuels such as petroleum. Here are five quick takeaways to help you understand the use of CNG as a transportation fuel. The Safety of Compressed Natural Gas One of the first questions raised about the use of CNG in vehicles is safety. Maybe its because of its stealth persona as an odorless, colorless gas, but natural gas tends to strike fear into people over worries of explosion or related catastrophes. Yet, compressed natural gas has actually grown in popularity because it is seen, by those who actually know the facts, as a safe fuel choice. In fact, its not too hard to see why CNG is actually considered to be safer than gasoline. Natural gas is lighter than air, so a spill wont puddle the way gasoline will nor will it sink close to the ground like propane. Instead, CNG rises into the air and then dissipates in the atmosphere. In addition, CNG has a higher ignition temperature. In other words, its harder to ignite. Finally, CNG storage systems are much stronger than the typical gasoline tank found on a car or truck. Where CNG Comes From So where does CNG come from? The answer lies deep beneath your feet because natural gas is an organic compound, deposited deep within the earth. Although considered an alternative fuel, unlike many of its counterparts, natural gas is a fossil fuel and is primarily methane comprised of hydrogen and carbon. It is estimated that there are enough reachable deposits of natural gas below the Earths surface to last long after stores of petroleum have been depleted, though the supply is not infinite by any stretch. In addition, there is controversy over the environmental impact of fracking, the method used to reach natural gas deposits lying deeper under the Earths surface. Using Natural Gas For Vehicles The process of allowing natural gas to be used by a vehicle begins with natural gas being compressed and entering the vehicle through the natural gas dispenser or other filling means. From there, it goes directly into high-pressure cylinders located somewhere on the vehicle. When the car is accelerated, CNG leaves this on-board storage cylinder, passes along the fuel line and then enter the engine compartment where it enters the regulator which reduces the pressure from as high as 3,600 psi down to atmospheric pressure. A natural gas solenoid valve enables natural gas to move from the regulator into the gas mixer or fuel injectors. Mixed with air, natural gas flows on through the carburetor or the fuel injection system and from there, enters the engines combustion chambers. Compressed Natural Gas Vehicles Although over 25 automakers produce nearly 100 models of natural gas vehicles and engines for the U.S. market, the only CNG vehicle available for personal consumer use is made by Honda. CNGs market in the U.S. has been primarily for transit buses, where over 10,000 are currently used in the country. Its estimated that about one in five buses currently on order are CNG vehicles. But numbers elsewhere around the world are much high with an estimated 7.5 million natural gas vehicles on the streets globally. Thats twice what there was as recently as 2003. Its forecasted that by 2020, more than 65 million NGVs will be in use worldwide. CNG is Cost Effective CNG is also economically attractive. The U.S. Department of Energy has reported that the average nationwide price of a gallon of gas equivalent of CNG was as low as $2.04 per gallon in recent years. Prices are even lower in some areas of the country. Local and state governments have reported having their fuel bills cut in half by increasing the use of natural gas vehicles.

Compressed Natural Gas (CNG) as Transportation Fuel

Compressed Natural Gas (CNG) as Transportation Fuel Use of compressed natural gas, or CNG, as an alternative vehicle fuel is growing in significance with many city-owned fleets converting to the fuel. Though not renewable, CNG still holds some advantages over other fossil fuels such as petroleum. Here are five quick takeaways to help you understand the use of CNG as a transportation fuel. The Safety of Compressed Natural Gas One of the first questions raised about the use of CNG in vehicles is safety. Maybe its because of its stealth persona as an odorless, colorless gas, but natural gas tends to strike fear into people over worries of explosion or related catastrophes. Yet, compressed natural gas has actually grown in popularity because it is seen, by those who actually know the facts, as a safe fuel choice. In fact, its not too hard to see why CNG is actually considered to be safer than gasoline. Natural gas is lighter than air, so a spill wont puddle the way gasoline will nor will it sink close to the ground like propane. Instead, CNG rises into the air and then dissipates in the atmosphere. In addition, CNG has a higher ignition temperature. In other words, its harder to ignite. Finally, CNG storage systems are much stronger than the typical gasoline tank found on a car or truck. Where CNG Comes From So where does CNG come from? The answer lies deep beneath your feet because natural gas is an organic compound, deposited deep within the earth. Although considered an alternative fuel, unlike many of its counterparts, natural gas is a fossil fuel and is primarily methane comprised of hydrogen and carbon. It is estimated that there are enough reachable deposits of natural gas below the Earths surface to last long after stores of petroleum have been depleted, though the supply is not infinite by any stretch. In addition, there is controversy over the environmental impact of fracking, the method used to reach natural gas deposits lying deeper under the Earths surface. Using Natural Gas For Vehicles The process of allowing natural gas to be used by a vehicle begins with natural gas being compressed and entering the vehicle through the natural gas dispenser or other filling means. From there, it goes directly into high-pressure cylinders located somewhere on the vehicle. When the car is accelerated, CNG leaves this on-board storage cylinder, passes along the fuel line and then enter the engine compartment where it enters the regulator which reduces the pressure from as high as 3,600 psi down to atmospheric pressure. A natural gas solenoid valve enables natural gas to move from the regulator into the gas mixer or fuel injectors. Mixed with air, natural gas flows on through the carburetor or the fuel injection system and from there, enters the engines combustion chambers. Compressed Natural Gas Vehicles Although over 25 automakers produce nearly 100 models of natural gas vehicles and engines for the U.S. market, the only CNG vehicle available for personal consumer use is made by Honda. CNGs market in the U.S. has been primarily for transit buses, where over 10,000 are currently used in the country. Its estimated that about one in five buses currently on order are CNG vehicles. But numbers elsewhere around the world are much high with an estimated 7.5 million natural gas vehicles on the streets globally. Thats twice what there was as recently as 2003. Its forecasted that by 2020, more than 65 million NGVs will be in use worldwide. CNG is Cost Effective CNG is also economically attractive. The U.S. Department of Energy has reported that the average nationwide price of a gallon of gas equivalent of CNG was as low as $2.04 per gallon in recent years. Prices are even lower in some areas of the country. Local and state governments have reported having their fuel bills cut in half by increasing the use of natural gas vehicles.

Transformational Leadership Essay Example | Topics and Well Written Essays - 2000 words - 1

Transformational Leadership - Essay Example Some of the factors were the rapid changes in technology, an increase in the circulation of products from recently industrialized nations, increased competitiveness among the competitors, pricing strategy in the Organization of Petroleum Exporting Countries (OPEC) being volatile, and changing market structures led to a strong, volatile and competitive atmosphere in which important changes in the organization were crucial. Downsizing and adopting of new types of business agreement were the most common changes carried out. Therefore these changes took their toll on employee empowerment and satisfaction. This broke the old social agreement that had long term employment and in exchange get the employee's loyalty (Griffin 2003, p. 1). Secondly, in the 1970s, we had the contingency theory on leadership. The theory on leadership was established in research of behaviors, character, and circumstances and did not account for several untypical features in leaders (Simic 1998, p. 50). These are the fact tendencies that led to the realization of the theory of transformation.Odom and Green (2003), based on research and the analysis of a number of legal cases, claim that when the concept of transformational leadership is used in ethical dilemmas that managers face there is less litigation and better moral results than if the transactional approach to values that is common was used. Within academic surroundings, as a result of transformational leadership, instructors are more likely to work together and are perceived.

Learning and teaching assessment Essay Example | Topics and Well Written Essays - 2000 words

Learning and teaching assessment - Essay Example It is obvious that for such a sensitive procedure, my students have the basics of clinical studies covered. The most common way of classifying students is to use the visual, auditory and kinesthetic way, otherwise known as the VAK model (Utley, 2010). This model establishes a learner’s preferred mode for learning and processing new information. The VAK model was introduced in the 1920s by the likes of Keller, Orthon, Fernald, Stillman, Gillingham and Montessori (Dreeben-Irimia, 2010). In addition to the VAK model Gaberson and Oermann (2010) add more tools to expand the teaching strategies by including olfactory and emotionally experimental methods that help children who don’t benefit a great deal from didactic methods, learn. Although there are three main categories for students (refer to the VAK model) however, within the visual class Ryan at al. (2011) further divide the class into two subclasses; the ‘verbal visual’ and the ‘spatial visual’. The verbal visual students are those that best learn when the information is ‘written down’. The spatial visual students prefer solely the marvel of the visual; graphs, charts, diagrams etc. Such learners are generally good with faces and have good sense of direction (Hill & Howlett, 2012). Auditory students perform really well in brainstorming sessions. It is almost a ideal way to absorb, process and take part in the creative process (Spencer & Vavra, 2009). These learners can be taught better when the same idea is rephrased in several different ways (Lauwers & Swisher, 2010). The whole idea behind using the VAK model is not to isolate students based on their preferred teaching styles. It is a mere recognition that some students prefer one method over another while learning. In real practice, the VAK model is more popular with the more vulnerable exceptional learners (Zhang et al., 2012). The teacher can affirm if a student prefers