Donnerstag, 29. Oktober 2015 - 12:45 Uhr

Raumfahrt - Professor arbeitet an Hybrid-Motor-Technologie


Peter Vorobieff (right) and Craig Davidson set up their hybrid propulsion test rig at the Mechanical Engineering Building Tuesday, Oct. 27, 2015. Vorobieff and Davidson are using a series of magnets that aid the process of charging ions to create an efficient source of propulsion. 
A UNM professor is developing a hybrid engine, combining the advantages of chemical rocket and electric propulsion to make travel in space less time consuming and more energy efficient.
Peter Vorobieff, a professor of mechanical engineering, is working on this project in collaboration with Dark Sea Industries, a local aerospace company targeted at introducing new propulsion technologies to access space.
“This is a prototype of a hybrid propulsion system. Right now, there are two ways to go to space: one of them is through chemical rocket that for example is how cruise gets to the international space station; the other way is mostly deep space travel through Ion propulsion,” Vorobieff said.
A chemical rocket generates a lot of thrust so it can deliver a large mass. However, its efficiency is limited and it requires a lot of reaction mass, he said. The ion propulsion systems that are used for deep space probes are thrifty for fuel consumption, but they cannot generate much thrust, he said.
“To go from one place to another, they have to generate thrust for months and as a result, they are kind of ok for robot probes, but are not good for human travel,” he said.
Vorobieff and his team are trying to combine the advantages of both chemical and ion propulsion by ionizing the discharge of air breathing or a chemical route. That would allow them to have much higher velocity with the same amount of fuel, he said.
“This project is in the early stages of development. We just recently demonstrated physically that what we want to do is feasible. So what lies ahead is testing and more testing. We are talking about the very first year or two years of a development cycle that probably will be 10 years,” he said.
He said the project has received a small grant from New Mexico Small Business Assistance Program and the scientists are applying for more funds. The scientists are also looking to build partnerships across the globe.
“We met a group of researchers from England who are also working on a similar project, so we are also planning to establish collaboration with them. This is a low-probability of success, high pay-off kind of project. If it worked, it will seriously change space travel and also possibly atmospheric travel,” he said.
He said that, if successful, the technology will save 10 to 20 percent of fuel mass during travel to space.
“It means in case of its success, the project will allow scientists to go places where they could not go before. It will also make higher speeds possible; that means radically cutting down the travel time. Instead of half-a-year or year, it could take weeks or months,” he said.
Craig Davidson, administrator of Dark Sea Industries, said they are basically developing an electric jet engine.
“We believe it can replace a large engine on a 777 class airplane and do it for dramatically lesser cost. That also means less pollution,” he said.
He said the first phase of the project has allowed the scientists to test the ionization part and now the next stage will be to take it and combine it with the coil that is being designed under a second NMSBA grant.
“During the second phase we will produce realistic thrust and show that the ionization can be manipulated to produce greater thrust,” he said.
Quelle: Daily Lobo

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