Detailed Cycle Analysis of Turbofan Engine Essay

Detailed Cycle Analysis of Turbofan Engine - Essay Example 1. Fan – The fan is at the obverse of the engine. The process of propulsion begins at this part. The fan initiates a flow of air around the engine. The air gets separated into two streams. The larger stream, known as bypass air, is typically about 85%, while the smaller stream which refers to primary air, is about 15% of the total volume of air. The bypass air usually keeps the engine quieter, cooler and more fuel efficient. 3. Combustion chamber – After the compression process is complete the highly pressured air got forced through a combustor. Then, fuel got added and burned. This process makes the air temperature to be high. 4. Turbines – Hot air gets blasted through the blades of the turbines. The two whirling turbines rotate the shafts that steer both the fan and the compressors at the front part of the engine. This process allows modern jets to function with high fuel efficiency. 5. Exhaust nozzle – The hot air get forced via the exhaust opening at the rear part of the engine. The air gets forced to accelerate due to the thin walls of the exhaust nozzle. The acceleration of the air, combined with its weight, drives the engine forward. An explanation of how the turbofan engine works became discussed here. The inward bound air enters the engine shaft. A portion of the inward air passes through the ducted fan. It continues on into the core compressor (Diesinger 2008, p.34). This then goes to the burner. Here, air mixes with fuel and combustion occurs. For the basic turbojet, the hot exhaust gas passes through fan turbines, the core and then out through the nozzle. The surplus of the inbound air passes through the bypasses and fan. Sometimes it goes about the engine. This is just like the air via a propeller. The velocity of the air that passes via the fan is higher than the free stream. A turbofan gets a portion of its thrust from the fan and the rest from the core (Peter Galison 2000, p.25). In the analysis of the engine cycle, the bypass ratio

Topic Critique Essay Example | Topics and Well Written Essays - 500 words

Topic Critique - Essay Example t "to the extent that an individual can learn to perform some mental skills without conscious attention, the conscious part of the brain is freed to attend to other mental activities, thus enlarging its cognitive scope (Dickinson). For example, a person who is interested in music will learn the lyrics and tunes of a song easily without giving much conscious attention to learn it. On the other hand, same person may struggle to learn mathematics in the absence of interest, even if he performs some conscious efforts. From the above examples it is clear that certain brain activities are controlling the learning capabilities of a person unknowingly. Herman Epstein suggested that periods of rapid brain growth are the times for intellectually challenging curriculum, and that plateau periods, such as in adolescence, are the times for more concrete, experiential learning rather than pushing students too soon into abstract thinking (Dickinson) The analysing powers of a person varies differently during his life span. Alcohol or drug usages may not be considered as a sin by some youths. But the same youths may regret for their activities after ten or fifteen years. In other words, same thing may be perceived differently by the same person during different stages of his life because of differences in brain activities at different periods. Music is an entity which can control and comfort the brain activities. Even distressed persons will get a soothing effect when they hear music. A calm and peaceful mind is essential for proper learning. A learner’s mind will always be under tension because of some external parameters which may have nothing to do with learning. Music can eliminate all such negative parameters of learning and can keep the learner’s mind fully focussed on the learning activity alone. All the people hate noise, but most of them like music because of its smooth rhythm and feeling it create. â€Å"The intentional use of music in the classroom will set the scene