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Current research focuses more on nuclear electric systems as the power source for providing thrust to propel spacecraft that are already in space. Other space fission reactors for powering space vehicles include the SAFE-400 reactor and the HOMER-15.
In the field of chemical engineering this is also known as space time. The residence time of a specific compound in a mixture equals the turnover time (that of the compound, as well as that of the mixture) only if the compound does not take part in any chemical reaction (otherwise its flow is not conservative) and its concentration is uniform.
Kilopower is an experimental U.S. project to make new nuclear reactors for space travel. [1] [2] The project started in October 2015, led by NASA and the DoE ’s National Nuclear Security Administration (NNSA). [3] As of 2017, the Kilopower reactors were intended to come in four sizes, able to produce from one to ten kilowatts of electrical ...
This list of nuclear power systems in space includes 81 nuclear power systems that were flown to space, or at least launched in an attempt to reach space. Such used nuclear power systems include: radioisotope heater units (RHU) (usually produce heat by spontaneous decay of 238 Pu)
The Systems Nuclear Auxiliary POWER ( SNAP) program was a program of experimental radioisotope thermoelectric generators (RTGs) and space nuclear reactors flown during the 1960s by NASA . The SNAP program developed as a result of Project Feedback, a Rand Corporation study of reconnaissance satellites completed in 1954. [1]
The plug flow reactor model (PFR, sometimes called continuous tubular reactor, CTR, or piston flow reactors) is a model used to describe chemical reactions in continuous, flowing systems of cylindrical geometry.
Dividing the volume of the tank by the average volumetric flow rate through the tank gives the space time, or the time required to process one reactor volume of fluid. Using chemical kinetics , the reaction's expected percent completion can be calculated.
It was the third Soviet RBMK nuclear power plant, after the Leningrad and Kursk power plants, and the first plant on Ukrainian soil. [7] The completion of the first reactor in 1977 was followed by reactor No. 2 in 1978, No. 3 in 1981, and No. 4 in 1983.
Substantial thermionic space reactor development programs were conducted in the U.S., France, and Germany in the period 1963–1973, and the US resumed a significant thermionic nuclear fuel element development program in the period 1983–1993.
A nuclear electric rocket (more properly nuclear electric propulsion) is a type of spacecraft propulsion system where thermal energy from a nuclear reactor is converted to electrical energy, which is used to drive an ion thruster or other electrical spacecraft propulsion technology. [1] [2] [3] [4] [5] [6] [7] [8] The nuclear electric rocket ...