Skip to main content

Bleed air

Bleed air is a certain portion of air from the compressor. The high pressure and high temperature air from the compressor is channeled to various part. Many vital parts of the aircraft depend upon the bleed air from the engine for the proper operation. The bleed air basically acts as a power source for other systems. The systems include:
1. Anti ice system
2. Engine starting
3. Hydraulic system
4. Air conditioning system
5. Water system
The aircraft has normally 2 bleed airs inlet in the compressor at the 5th and 9th Stage. The inlet pressure and temperature are 40Psi and 250 degrees Celsius respectively.

Comments

Post a Comment

Popular posts from this blog

ACARS (Aircraft Communications Addressing and Reporting System)

ACARS This is a neat way used to bypass the intentional or unintentional human error on  reporting flight information during or after flight . Before 1978 AD, this information was given via, voice logs, where captain verbally records the phase of flight and time. This brought human error in the data reporting and was extra work to the pilots.  What ACARS does is acts as a reporting machine which reports flight information in different phases of flight to the Ground team. Initially ARINC developed this method for just 4 messages per flight, but now it has turned into a robust means of data link between not just aircraft and ground station but also between aircraft.  ACARS (Aircraft Communications Addressing and Reporting System) is a data communications system used for air-ground communication between an aircraft and their own operations centers, air traffic control, and national aviation authorities. ACARS can be used anywhere in the world by connecting to a global ne...
Post a Comment
Read more

ATA numbering system

 An aircarft has a lot of parts, manufacturing them is one thing maintaining them is some other level challange. Thus to describe what needs to be done for what part requires a lot of documentation.  The easy way engineers have come up is to name each section of the aircraft as different title numbers.  ATA- Air Traffic association. It was created by people in ATA so called ATA chapters.  with 100 chapters ATA  So when some one says ATA chapter 72 it will always mean engine. ATA 27 flight controls ATA 32 landing gear ATA 72 is engine  and so on If we go even deeper. ATA 72-00-01 is fan module ATA 72-00-02 is core module ATA 72-00-03 is HPT Module ATA 72-00-04 is LPT module ATA 72-00-05 is AGB module and so on
Post a Comment
Read more

PT6A-27

General Engine specification Blog1. It is a turboprop engine- free turbine . This is an engine used in airplanes like DHC-6 Twin Otter 300  Harbin Y-12 Beechcraft This a Pratt and Whitney Canada Engine. One of the most famous and successful company to produce turboprop engine. Compressor  It consist of 3 stage axial compressor and 1 stage centrifugal flow compressor. Combustion  Annular reverse flow (right to left according to diagram above) combustion with 14 simplex burner (Glow plugs) Turbine 1 stage free power turbine and 1 sage gas generator power turbine.(Left to right according to diagram above) Other specs: Fuel type: aviation kerosine Overall pressure ratio- 6.3:1 Air mass flow: 5.3 lb/s Power to weight ration: 2.14 hp/lb 
Post a Comment
Read more