Science of the Physics - Essay Example

Physics Introduction This paper seeks to answer a number of questions relating to physics.The areas covered include amount of wasted heat, average temperature of exhaust gas, design, amount of energy generated, and finally and estimation of the installation and maintenance costs, size, and weight of your design. 1. Estimate the amount of heat wasted on each mile from a typical car (30 MPG) Heat from any automobile is produced by burning of oxygen. The gas that is produced is carbon dioxide that is usually a product of combustion. Although there are other by-products of combustion, the main by-product is carbon dioxide (CO2). The heat that is produced will be calculated from the amount of carbon dioxide that is produced. For a mile, the heat that is produced seems to be high in the first mile than in the next miles. The reason behind is that, in the first mile, there are additional heat changes that are produced as the automobile begins to accelerate (Stapleton, 200). Due to the fuel economy that has been used as a technique of manufacturing many automobiles, the amount of heat that is produced is limited since the automobiles are more automated. A modern car will produce less heat in a short period since the amount of petrol and diesel that is burned is less. When the amount of fuel that is burned in a short period is less, the heat that will be produced will be less. The size and density of the automobiles engine will also contribute to the amount of heat that will be produced. A big-sized engine is likely to produce more heat when compared to a small engine-sized automobile. In calculating the amount of heat that is produced in a mile, we will have to calculate Gallons per mile to get the real heat produced (Stapleton, 125). 2. What is the average temperature of the exhaust gas? The exhaust gas is estimated to have the same temperature to that of the engine at that particular time. It is usually tricky get the temperature since the exhaust gas since after it comes outside the engine other external factors immediately affect. Another factor that is likely to affect the real value of the temperature is the fact that the measurements will be calculated away from the place where combustion takes. The exhaust system as a whole will affect the right temperature of the exhaust gas (Stapleton, 112). In a case where gasoline and air are mixed in a proportion that will lead to complete combustion, the temperature of the exhaust gas is estimated to be 1500 F ranges. This temperature is estimated to be very high to cause catastrophe in the engine. Therefore, it is said that in most cases complete combustion does not occur (Stapleton, 205). Manufactures at most times will manufacture vehicles with a limited space for combustion so that complete combustion does not take place. At most, a case, the temperature that is estimated by manufactures is 1200 F to 1300 F range. This temperature can withstand the harsh conditions in the engine. When the temperatures range at these temperatures, the functioning of the engine will be proper. At proper temperatures, the combustion that will take place will be favorable functioning of the engine. At high temperatures, the pressure will be minimal thus proper working of the engine (Stapleton, 99). 3. Design a method to reclaim the thermal energy from the exhaust? It can be either electrical or mechanical energies The energy that is produced in the exhaust is in the most cases wasted into the atmosphere. This energy can be reclaimed through various methods. Some of them have been tried out but they have not showed any positive results. The methods to claim the energy can be electrical or mechanical. In my case, I am going to design an electrical method of reclaiming the energy (Stapleton, 211). In my model, the apparatus will be electrical wires that can be identified as positive and negative, cathode, and anode. In the model, the connections will bring from the combustion chamber where the exhaust gas will be directed into a certain direction that it will pass before coming out through the exhaust pipe. In the process of converting the direction of the exhaust gas, there will be positive and negative terminals in place. The two will be separated such that each takes its own energy. The electrical wires will then run from the anode and cathode to a battery that will be charged using the energy that has been reclaimed. From the battery or any other device that can be used to store energy, the appropriate use of the same will be put in place (Stapleton, 100). This model will be less costly in installation and maintenance. The energy that is reclaimed can be used for different purposes either within or outside the car. 4. Calculate the energy generated from your design My design that has been discussed above will not be in a position to reclaim all the energy that is lost in the combustion process. The rate of combustion is usually fast that it makes it hard to reclaim all the energy that is produced. The calculations of the energy that is produced during combustion can be calculated using some, methods that have been designed in question one (Stapleton, 127). In the calculation of the heat energy that is generated, one is able do some calculations to get the energy that is reclaimed. Two methods can be used to calculate the heat energy that is reclaimed (Stapleton, 231). The first method is calculations that are done through calculating the energy that is produced directly from the combustion and then subtracting the energy that comes out through the exhaust pipe. This is a hard method to use in calculating the energy that is reclaimed since it will require more skill and technique to do the calculation (Stapleton, 175). The easiest method that is used to calculate the heat energy that is reclaimed is calculating the heat energy that is in the device that stores the stored energy. A meter can be put in place in the battery that is storing the energy or any other device that is used to measure the heat energy reclaimed. The heat energy can also be calculated by calculating the energy that is been in use after been reclaimed (Stapleton, 115). 5. Estimate the installation and maintenance costs, size, and weight of your design The costs that are incurred in installing the design are less. The reason is that the materials that are required are easily available and cheap. The materials are electrical wires, anodes, and cathodes. A device will also be required to store the energy that is stored. This is very cheap and the energy that is saved will be easy to use (Stapleton, 163). Maintenance of the devices will be cheap. The materials that are used are durable. They will be a need of thick wires that will not be affected by the excessive heat in the combustion chamber. When the wires are strong, they may serve forever without any defect. The device that is used to store the energy will have to be checked regularly. This is to ensure that it does not affect other parts in the exhaust system (Stapleton, 225). The size of the design is small. The size of the design will fit in any automobile so long as there is a combustion chamber and exhaust pipe. The weight of the design is also critical such that any automobile can withstand it. It will not have any effect on the automobile since they are set in a place that does not affect the functioning of the automobile. This will act as a separate design away from the one that is already in other vehicles. This is profitable design without any challenges in installation and maintenance. Any automobile can suit this design (Stapleton, 233). Reference Stapleton, Daniel. “How to Plan & Build a Fast Road Car”. London: Veloce Publishing Ltd. 2005. Pp. 98-234. Read More