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The_Absolute
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How are jet engines cooled? I've seen diagrams of all different kinds of jet engines and I cannot find anything which resembles a cooling mechanism.
mgb_phys said:In general you don't want to cool them - the idea is to get the air hot
There is a maximum temperature for the burnign fuel - you just need to pick the right alloys
No, being hot is what makes the air expand, which enables it to generate that velocity. It isn't a biproduct (penalty), it is the cause.Cyrus said:Being hot is simply a penalty you pay, it is not a means of thrust.
The_Absolute said:How are jet engines cooled? I've seen diagrams of all different kinds of jet engines and I cannot find anything which resembles a cooling mechanism.
Jet engines stay cool during flight through a combination of methods, including using cool air from outside the engine, diverting fuel flow, and using internal cooling systems.
The main purpose of cooling a jet engine is to prevent overheating, which can lead to engine failure. Cooling also helps to maintain the engine's efficiency and performance.
There are two main types of cooling methods used in jet engines: internal cooling and external cooling. Internal cooling methods include using compressor bleed air or fan air, while external cooling methods include using cool air from the atmosphere or fuel.
Jet engines cool the hot compressed air by diverting some of the air to flow over the engine's internal components, such as the combustion chamber and turbine blades. This air absorbs the heat and is then directed back into the engine's exhaust flow.
Yes, jet engines can overheat, and the consequences can be severe, including engine failure and potential damage to the aircraft. Overheating can also lead to a decrease in engine performance and efficiency, resulting in higher fuel consumption and reduced range.