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reheat

An afterburner (or reheat in British English) is an additional combustion component used on some jet engines, mostly those on military supersonic aircraft. Its purpose is to increase thrust, usually for supersonic flight, takeoff, and combat. Afterburning injects additional fuel into a combustor in the jet pipe behind (i.e., "after") the turbine, "reheating" the exhaust gas. Afterburning significantly increases thrust as an alternative to using a bigger engine with its attendant weight penalty, but at the cost of very high fuel consumption (decreased fuel efficiency) which limits its use to short periods. This aircraft application of reheat contrasts with the meaning and implementation of reheat applicable to gas turbines driving electrical generators and which reduces fuel consumption.Jet engines are referred to as operating wet when afterburning is being used and dry when not. An engine producing maximum thrust wet is at maximum power, while an engine producing maximum thrust dry is at military power.

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  1. N

    Water cylinder re heat time

    Hello all, i am doing work for a customer who has asked me what the reheat time of a 250 litre cylinder is. To be honest after all the years of doing plumbing this is a question that i have never been asked before because usually if you need a hot water cylinder then it is what it is, you just...
    • Nwalky
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    • america cylinder heat hot water cylinder reheat storage time usa water
    • Replies: 7
    • Forum: USA
  2. R

    Can Anyone Help With my VRT 392 and How to Reheat the Hot Water (438 Heat only)

    I have just installed a Vaillant VRT 392 controller on my wall using the BUS Cable I have a 438 Heat only Boiler system ( Not combie ) How do i turn on the hot water as a Temp Recharge at any point in the day just for the Hot water I know how to program the hot water in as part of the time...
    • Richard at Home
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    • anyone heat heat only help hot hot water reheat vaillant water
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
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