第一种叫做核热推进（nuclear thermal propulsion），这种系统推力强大且效率适中。核热推进使用的是小型核裂变反应堆，类似于在核潜艇中发现的核裂变反应堆，常采用氢气作为工质（working substance）兼冷却剂，工质流经反应堆后被加热，再经收缩扩张喷管高速喷出，进而提供推力。NASA的工程师估计，相比化学动力驱动，由...
第一种叫做核热推进(nuclear thermal propulsion),这种系统推力强大且效率适中。核热推进使用的是小型核裂变反应堆,类似于在核潜艇中发现的核裂变反应堆,常采用氢气作为工质(working substance)兼冷却剂,工质流经反应堆后被加热,再经收缩扩张喷管高速喷出,进而提供推力。NASA的工程师估计,相比化学动力驱动,由核热推进技...
VehicleThis paper describes the Mars transportation vehicle design concepts developed by the Marshall Space Flight Center (MSFC) Advanced Concepts Office. These vehicle design concepts provide an indication of the most demanding and least demanding potential requirements for nuclear thermal propulsion ...
The rationale/benefits of nuclear thermal rocket propulsion for NASA's lunar space transportation system The solid core nuclear thermal rocket (NTR) represents the next major evolutionary step in propulsion technology. With its attractive operating characteris... SK Borowski 被引量: 10发表: 1991年 ...
"Whether NASA ultimately decides to build the nuclear thermal propulsion system for in-space transportation is still TBD, but what we are doing now is development that will allow the agency to take that step," Sheehy says. What is clear, however, is that NASA is turning back to nuclear ...
Section 3.2 contains a description of the thermo-physical properties and the thermal hydraulic boundary conditions used in the coupled N + T/H calculations. Summary and conclusions Nuclear thermal propulsion systems are being actively investigated by NASA and private industry as a candidate technology ...
Nuclear Thermal Propulsion was resuscitated in the 2010s by the efforts at USNC to deliver more capable fuels and designs that use LEU and HALEU rather than military HEU. The work continues. Learn More PYLON Pylon is TRISO fueled transportable micro reactor. That reactor is fully containerized...
A safety and reliability analysis for space nuclear thermal propulsion systems. Pasquale M. Sforza,Martin L. Shooman,Dennis G. Pelaccio. Acta Astronautica . 1993P.M. Sforza, M.L. Shooman, D.G. Pelaccio, A safety and reliability analysis for space nuclear thermal propulsion systems, Acta ...
Nuclear thermal propulsion (NTP) involves using the energy from a nuclear reaction to heat fuel that’s fired out of the back of a rocket, like the air from a toy balloon. But with nuclear electric propulsion (NEP), the fission energy is instead used to ionize a gas. “The propellant ...
“It could take a hundred launches to get humans to Mars on a chemical propulsion system, but we can get it down to five with a nuclear thermal propulsion system,” said Chambers. NTP’s efficiency can also enable more abort options during missions. ...