specific impulse

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specific impulse

n.
A performance measure for rocket propellants that is equal to units of thrust per unit weight of propellant consumed per unit time. Also called specific thrust.

specific impulse

n
(Astronautics) the ratio of the thrust produced by a rocket engine to the rate of fuel consumption: it has units of time and is the length of time that unit weight of propellant would last if used to produce one unit of thrust continuously

specif′ic im′pulse


n.
a measure of how efficiently a rocket engine burns its fuel.
[1945–50]
Translations
impulsion spécifique
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References in periodicals archive ?
Cumulative soot mass, mass flow rate, flux and concentration are all related via exhaust velocity, pipe cross-sectional area and time.
The resulting inlet exhaust velocity is 70m/s, which is beyond regular EGR operating conditions.
A turbocharger uses a radial in axial out turbine configuration which is influenced mainly by the exhaust velocity.
Electric propulsion doesn't produce very much thrust because the engine is not expelling a lot of propellant, but the exhaust velocity is very high--up to 90,000 mph with NEXT.
The first generation of subsonic jetliners was very noisy because of the high exhaust velocity of their engines.
Although these rockets do their job well but they have fundamental energy limits, which restrict them to a maximum exhaust velocity that is too low for most piloted missions with destinations beyond moon.
It may be noted that the plume rise as per ASHRAE 2007 (Equation 8) were functions of the exhaust velocity ratio [(V.
Keeping a high value of the exhaust velocity ensures a corresponding convective heat transfer coefficient.
For example, when the exhaust velocity is high, the excess energy could be stored in a battery for later use during low-exhaust cycles.
Wind velocity, direction, exhaust outlet location relative to air intakes and doors, exhaust velocity, and dilution at the exhaust outlet all influence possible re-ingestion.
While in the take-off and approach configuration (ejector aft), the hushkit forces exhaust through a uniquely designed nozzle into an ejector shroud that ultimately reduces exhaust velocity, hence noise values.