MOSCOW, 12 Apr. Scientists from the Omsk State Technical University (OmSTU) proposed to improve the device for heating cold helium gas to pressurize the fuel tanks of launch vehicle stages. According to them, the solution will make it possible to abandon the long lines of helium supply, which will increase the payload of the apparatus. This was reported in the press service of the university.
The pressurization system is used to maintain pressure in the fuel tanks of launch vehicles when fuel is consumed during the flight and is necessary to ensure the operation of liquid rocket engines, scientists of the Omsk Polytechnic University said.
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In existing systems, helium is heated in heat exchangers located in a liquid rocket engine. This necessitates the use of long lines to supply helium from the oxidizer tank to the liquid propellant rocket engine and supply heated helium back to the top of the rocket fuel tanks for pressurization. With a length of highways from 40 to 50 m, their total weight is about 85 kg.
The device improved by OmSTU specialists allows us to abandon this solution.
“The results obtained can be used in organizations of the rocket and space industry of Russia to create promising models of rocket space technology. It is also possible to sell rocket and space technology to interested foreign developers,” said Corresponding Member of the Siberian Branch of the Russian Academy of Sciences, Director of the Scientific and Educational Center «Space ecology» OmSTU Valery Trushlyakov.
According to the scientist, the application of the obtained results is possible on promising developments, for example, Russian launch vehicles «Amur», «Angara», «Irkut», «Irtysh», which will make it possible to more effectively solve the issues of their reusable use.
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The authors of the development believe that this will also provide an opportunity to increase their overall energy, to ensure the descent of the upper stages from orbits after the mission is completed, to reduce the man-made impact on the environment both in the near-Earth space and in the areas where spent rocket stages fall on the Earth's surface. The study was carried out as part of the strategic project of OmSTU «Safe Space» of the program «Priority 2030″. //ria.ru/20221213/tusur-1838004212.html» data->