M15c5

19問 • 9ヶ月前

ユーザ名非公開

通報

問題一覧

Diffuser It is a divergent shape located between compressor and combustion chamber

used to decrease the velocity of the air.

Compressed air is mixed with fuel,

in the combustion chamber

Over rich mixture will produce

exhaust smoke and carbon particles formed inside combustion chamber

The method used a network of passages between two laminated skins forming the flame tube is

a transpiration cooling.

The purpose of dilution zone in the combustion chamber is

to protect combustion chamber from melting

The overall fuel/air ratio entering combustion chamber is approximately

(45:1 – 130:1)

Reverse Flow Combustion is best suited for

turbo-prop and turbo-shaft engines

Combustion in Multiple-can Combustion Chamber occurs in

two cans by igniter plugs then moved through interconnector tubes to the remaining cans

Compressor outlet and the duct at the forward part of the combustion is

snout shape

Another name for can – annular combustion chamber is.

A tubo-annular.

Can-annular compared to a multiple can design is

smaller and lighter

Rich mixture that has

too much fuel for the primary air in the combustion chamber

The best ratio of air fuel mixture within

the primary dilution zone is 15:1

The primary condition that are necessary for safe and correct combustion

is correct mixture ratio and air velocity must be slow enough

can annular combustion chamber

has a set of flame tubes with common outer casing

Annular combustion chamber disadvantages

Removal difficult and time consuming

Annular combustion chamber advantages

Better thermal load distribution for the turbine

Swirl vanes cause

air flow vortex and help air fuel mixing

Combustion stability means

smooth burning coupled with ability to remain alight over a large range of air fuel ratio and air mass flow

mod5 training

mod5 training

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問題一覧

Diffuser It is a divergent shape located between compressor and combustion chamber

used to decrease the velocity of the air.

Compressed air is mixed with fuel,

in the combustion chamber

Over rich mixture will produce

exhaust smoke and carbon particles formed inside combustion chamber

The method used a network of passages between two laminated skins forming the flame tube is

a transpiration cooling.

The purpose of dilution zone in the combustion chamber is

to protect combustion chamber from melting

The overall fuel/air ratio entering combustion chamber is approximately

(45:1 – 130:1)

Reverse Flow Combustion is best suited for

turbo-prop and turbo-shaft engines

Combustion in Multiple-can Combustion Chamber occurs in

two cans by igniter plugs then moved through interconnector tubes to the remaining cans

Compressor outlet and the duct at the forward part of the combustion is

snout shape

Another name for can – annular combustion chamber is.

A tubo-annular.

Can-annular compared to a multiple can design is

smaller and lighter

Rich mixture that has

too much fuel for the primary air in the combustion chamber

The best ratio of air fuel mixture within

the primary dilution zone is 15:1

The primary condition that are necessary for safe and correct combustion

is correct mixture ratio and air velocity must be slow enough

can annular combustion chamber

has a set of flame tubes with common outer casing

Annular combustion chamber disadvantages

Removal difficult and time consuming

Annular combustion chamber advantages

Better thermal load distribution for the turbine

Swirl vanes cause

air flow vortex and help air fuel mixing

Combustion stability means

smooth burning coupled with ability to remain alight over a large range of air fuel ratio and air mass flow