Search results
Results from the WOW.Com Content Network
The heating value (or energy value or calorific value) of a substance, usually a fuel or food (see food energy), is the amount of heat released during the combustion of a specified amount of it. The calorific value is the total energy released as heat when a substance undergoes complete combustion with oxygen under standard conditions .
Salt water corrosion is an additional problem that complicates maintenance. [citation needed] A nuclear fuel element for the cargo ship NS Savannah. The element contains four bundles of 41 fuel rods. The uranium oxide is enriched to 4.2 and 4.6 percent U-235
Fuel temperature coefficient of reactivity is the change in reactivity of the nuclear fuel per degree change in the fuel temperature. The coefficient quantifies the amount of neutrons that the nuclear fuel (such as uranium-238 ) absorbs from the fission process as the fuel temperature increases.
MOX fuel is an alternative to low enriched uranium (LEU) fuel used in the light water reactors which predominate nuclear power generation. Some concern has been expressed that used MOX cores will introduce new disposal challenges, though MOX is a means to dispose of surplus plutonium by transmutation .
A picture of an Aircraft Nuclear Propulsion system, known as HTRE-3 (Heat Transfer Reactor Experiment no. 3). The central EBR-1 based reactor took the place of chemical fuel combustion to heat the air. The reactor rapidly raised the temperature via an air heat exchanger and powered the dual J47 engines in a number of ground tests. [6]
Emulsified fuels are a type of emulsion that combines water with a combustible liquid, such as oil or fuel. An emulsion is a specialized form of dispersion that contains both a continuous phase and a dispersed phase. The most commonly utilized emulsified fuel is a water-in-diesel emulsion (also known as hydrodiesel). [1]
This naval nuclear reactor is estimated to generate 210 megawatts (MWt) [3] driving a 30 MW pump-jet propulsion system built by BAE Systems that was designed for the Royal Navy [4] and entered service on the second Trafalgar-class submarine, also featured on the Astute-class submarines.
Energy efficiency in transport is often described in terms of fuel consumption, fuel consumption being the reciprocal of fuel economy. [2] Nonetheless, fuel consumption is linked with a means of propulsion which uses liquid fuels , whilst energy efficiency is applicable to any sort of propulsion.