According to the U.S. Space website, when an artificial satellite is launched into Earth orbit, more than half of its mass is propelled by fuel when it is launched, so that the artificial satellite is lifted to complete its mission with only a small amount of fuel. Scientists pointed out that in the future, “space gas stations†can inject fuel into spacecraft, greatly reducing launch costs, and ensuring that spacecraft can carry more instruments. At present, scientists plan to use the latest scientific and technological means to achieve "space refueling," which will greatly reduce the cost of spacecraft, and can bring more scientific instruments into space. Benjamin Reed, deputy manager of NASA's Satellite Service Maintenance Service (SSCO) program, said: "Track gas station service will enable more scientific hardware devices to enter space!" At present, SSCO has conducted multiple projects. Tests will be conducted at the end of this year to conduct more tests on the space station and the ground. In January 2013, the RRM was first tested on the International Space Station, confirming that the remote detection robot can successfully convert fuel in space through valves and lines instead of using oxidants or propelling fuel. This test simulates gas stations. The simulated satellite was infused with expanded ethanol. Reid said that ethanol has a similar hydrazine viscosity, density and heat capacity, but it will not explode. It will become an ideal fuel for the International Space Station and will have a high degree of safety. At the end of this summer or early fall, SSCO plans to conduct more tests on the space station, shifting its focus from storage fuels to the low temperature conditions required for the "gas station" to switch on and off. The mechanical aerial refueling mission tested mechanical and robotic technologies in the space environment at the International Space Station, but relied on alternative fuels. On the ground, engineers needed to perform safety tests more flexibly. In February 2014, SSCO announced the successful completion of the Remote Mechanical Combustion Converting Test (RROxiTT), which involves the remote transmission of toxic combustibles under high pressure in space. This experiment was too dangerous to be tested on the space station. Reid said: “This is the same reason for refueling cars at a local gas station.†Every time filling at the gas station on the ground is the same, in space is completely different, the fuel refueling pressure is maintained at about the same per square. 250-300 pounds of inch is 6 times the pressure of space station mechanical air refueling tasks. On satellites, if you open the valve, the fuel injection pressure reaches 300 pounds per square inch, adding to the complexity of the implementation process. The RROxiTT experiment successfully demonstrated the ability of the mechanical transport unit to inject corrosive fuel from the fuel tank to the satellite under great pressure. The robot on the ground of NASA’s Kennedy Space Center conducts experiments and plans to simulate more difficult experiments in the future. Next, the RROxiTT experiment will be performed in a multi-layer structure of a simulated artificial satellite. The robot attempts to fuel satellites under pressure. Lap Joint Flange , A234 WPB Lap Joint Flange,Stainless Lap Joint Flange,Stainless Steel Lap Joint Flange,316 Stainless Steel Lap Joint Flange Cangzhou Youlong Pipe Fitting Manufacturing Co., LTD , https://www.youlongpipe.com
The artist’s depiction of a space machinery station is approaching a satellite.