Thermodynamic Cycle Analysis - Coursework Example

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Thermodynamic Cycle Analysis

2. You should set the initial conditions (green boxes) to reasonable values, explaining your choices. You should also explain the effects that increasing or decreasing these values have on the model. The initial conditions for density of air, ambient pressure, and ambient temperature for the engine have been input in the relevant green boxes in the excel file. The air pressure at sea level is 1.225 kg/m3, rounded off to 1.2 kg/m3 (Ahrens et al. 2012). This is at a temperature of 15°C (The Engineering Toolbox 2013). This air density is chosen because it is the density of air present at sea level. The ambient temperature is set at 300 K because this is generally taken as the average room temperature. The ambient pressure is chosen as 1.000 bar because the standard atmospheric pressure is generally indicated as 1 bar, which is equated to 100,000 Pa (Ahrens et al. 2012). Air density affects the pressure in the cylinder, ambient pressure affects the power generation and ambient temperature affects the efficiency of the engine. The effect of increasing the given value of air density would be that the pressure in the cylinder will increase for the compression ratio mentioned in the table. There will be more air to mix with fuel if the air density is high and therefore, there will be more power. Increase in the pressure at the same temperature will result in increase in power generation. ...
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Thermodynamic Cycle Analysis 1. For an engine of your choice (this may be based on your own car or bike, or any vehicle that you can get the information for) you are required to input the correct geometry and initial conditions into the simulation (blue boxes)…
Author : ignatius34

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