expansion ratio वाक्य
उदाहरण वाक्य
मोबाइल
- One difficulty experienced at this time was that the low compression ratio also implied a low expansion ratio during the power stroke.
- It is the expansion ratio that fundamentally converts the heat energy of the burning fuel / air mixture into usable mechanical energy.
- A key issue with this engine is the water consumption, which can be prohibitive for low expansion ratios and low inlet temperatures.
- Its expansion ratio can be designed for low ambient air pressures, without risking flow separation and flight instability during low-altitude flight.
- The expansion ratio of this engine was much more effective than that of the 1860 Lenoir engine and gave the engine its superior efficiency.
- The changing steam temperature alternately heats and cools the cylinder with every stroke and is a source of inefficiency which increases at higher expansion ratios.
- The development engine has " an expansion ratio of just 150, the maximum possible within Earth s atmosphere " to prevent flow separation problems.
- Higher Compression ratios also mean that the distance that the piston can push to produce power is greater ( which is called the Expansion ratio ).
- The thermal and gas dynamic losses from the prechamber result in direct injection Diesels ( despite their lower compression / expansion ratio ) being more efficient.
- Theoretical analysis shows that the resilience depends based on the "'vertex expansion ratio "'of the graph, defined as follows.
- Rocket engine efficiencies are much better, up to 70 %, because they operate at very high temperatures and pressures and can have very high expansion ratios.
- The rigidly mounted heatshield caused the underside of the rear fuselage to deform because the steel and the duralumin skin of the fuselage had different expansion ratios when heated.
- The effective compression ratio is reduced ( for the time the air is escaping the cylinder freely rather than being compressed ), but the expansion ratio is unchanged.
- Since the liquid to gas expansion ratio of this substance is 1 : 694, a tremendous amount of force can be generated if liquid nitrogen is rapidly vaporized.
- Also, increased mechanical efficiency is created by a higher compression ratio through the concomitant higher expansion ratio on the power stroke, which is by far the greater effect.
- In such a case, owing to the very great expansion ratio, the exhaust mixture will be at a relatively low temperature and suitable for admission to the condenser.
- For any given portion of air, the greater expansion ratio allows more energy to be converted from heat to useful mechanical energy, meaning the engine is more efficient.
- Many designs for space planes with scramjet engines make use of SERNs because of the weight reduction at large expansion ratios, or the additional lift at under-expansion.
- An Atkinson cycle engine uses the timing of the valve events to produce the benefits of a high expansion ratio without the disadvantages, chiefly detonation, of a high compression ratio.
- There is, however, a rise in nozzle pressure, because overall pressure ratio increases faster than the turbine expansion ratio, causing an increase in the hot mixer entry pressure.
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