» » The “impossible” detonation engine turned out to be working

The “impossible” detonation engine turned out to be working

 
The “impossible” detonation engine turned out to be working

The rocket engine, which was once considered impossible, was tested in laboratory conditions. Engineers created and successfully tested a prototype of the so-called rotating detonation engine, which generates traction by means of a blast wave held in an endless loop.

The operation of a rotating detonation rocket engine requires much less fuel than the internal combustion engine currently used in rockets. That is, in the future there will be more effective and less costly ways to deliver spacecraft into space.

Thus, in an experiment conducted by aerospace engineer Karim Ahmed of the University of Central Florida and his colleagues, evidence was first presented of the safe and effective detonation of hydrogen and oxygen in a rotating detonation rocket engine.

The idea of a rotating detonation engine appeared in the 1950s. The essence of the technology lies in a looped combustion chamber located between two cylinders that are one inside the other.

Gaseous fuel and an oxidizing agent are injected into the chamber through small holes (nozzles), after which they are ignited. This creates the first detonation that emits a supersonic shock wave traveling through the ringed combustion chamber. Having made one revolution and returning to the nozzles, it sets fire to the next portion of fuel and oxidizer - the explosion creates the next supersonic wave and so on. As a result of a series of explosions, thrust appears.

The advantage of the technology is lower fuel consumption (by 25%) with the same thrust, so the US military is actively investing in the development of a rotating detonation engine, hoping to subsequently save about $ 400 million annually on missile launches.

But the new engine has important features: detonation is chaotic and harder to control. That is, the engine requires careful calibration. It is important not only the fuel used and its ratio with the oxidizing agent, but also the size of the nozzles, the diameter and thickness of the chamber, the size and shape of the reactor, the place and time of fuel injection. Ahmed and his team are occupied precisely with the engine settings and its calibration. They created a small prototype of an engine with a diameter of 7.6 centimeters and successfully tested it in work.

07 май 2020 /
  • Не нравится
  • 0
  • Нравится

Похожие новости

Chinese scientists have created liquid metal, as in the movie Terminator 2

Chinese scientists have created liquid metal, as in the movie "Terminator 2". According to the researchers, the metal mass can transform into anything.

Earth's microbes are able to live in an atmosphere of pure hydrogen

 During the experiment, they created a facility that simulated conditions in the upper atmosphere of gas giants

Таинственные круги на полях оказались древними цитаделями

Польские археологи провели аэрофотосъемку и магнитные измерения на юго-востоке Великопольского воеводства и обнаружили десять ранее неизвестных цитаделей

Найден еще один предок современного человека

Возраст окаменелого черепа Брокен-Хилла, которому 300 000 лет, говорит о том, что гоминид жил в то же время, что и человек разумный.

Тропические леса когда-то существовали в Антарктиде

Международная группа исследователей обнаружила доказательства того, что тропические леса когда-то существовали в Западной Антарктике.

Ученые нашли древнейшую космическую пыль

Внутри одного из фрагментов знаменитого Мёрчисонского метеорита, который упал в окрестностях одноименной деревни на юге Австралии в 1969 году, ученые нашли следы самой древней на данный момент
Комментарии

НАПИСАТЬ КОММЕНТАРИЙ

Ваше Имя:
Ваш E-Mail:
Код:
Кликните на изображение чтобы обновить код, если он неразборчив
Введите код:
Популярные новости
Существует 50% вероятность того, что мы живем в симуляцииВремя эластично: почему на вершине горы время идет быстрее, чем на пляже?Кого и зачем приносили в жертву Древние Египтяне?На МКС найдено место утечки воздуха. Что дальше?Почему птицы летают клином11 живописных мест на планете, раскрашенных самой осеньюКрупнейшая озоновая дыра зафиксирована над АнтарктидойКаким будет мир с населением 10 миллиардов человек?