2011+gas_turbines

2011+gas_turbines - Gas Turbine Power Plants: Air is...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Gas Turbine Power Plants: – Air is compressed to a high pressure in the compressor – The high pressure air enters the combustion chamber where fuel is added and combustion takes place producing the high temperature gas – That gas enters the turbine, the gas expands in the turbine producing the power output, and the products are exhausted to the atmosphere. – This thermodynamic model is called the "BRAYTON CYCLE".
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 The engine was successfully used to power sawmills, streetcars, an early automobile and even a submarine, but it was out-performed by the more compact and efficient Otto engine In 1872, George Baily Brayton (1820-1892) invented the Brayton engine which was a two cylinder engine with air as the working fluid. The Brayton Cycle
Background image of page 2
3 The First Jet Engines – Frank Whittle (1907 - 1996) developed a patent in 1930 for an engine based on a continuous flow turbine which would power aircraft. – The patented engine, known as a jet engine , operated on the Brayton cycle.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 The First Jet Engines – In April 1937 the first engine was tested. According to Whittle himself it "Made a noise like an air raid siren" – The first jet plane was the Gloster E, which took off from Cranwell on 15 May 1941.
Background image of page 4
5 The First Jet Engines – The Gloster Meteor, the RAF's first jet fighter, entering squadron services towards the end of the Second World War, could fly 200mph faster than the RAF's Spitfires and Hurricanes.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 1959 - The First Gas Turbines Used for Electric Power • A Ruston TA ® gas turbine at the Park Plaza Shopping Centre in Little Rock, Arkansas It provided lighting, heating and refrigeration Had been used on Oil Drilling Rigs!
Background image of page 6
7 Classic Gas Turbine - Automotive
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 Aeroderivatives take over Original gas turbines were low in efficiency and high in maintenance In 1959, GE used T58 helicopter engines as the basis for its first aeroderivative application. – GE introduced the LM1500 initially installed aboard a hydrofoil ship, and about 70 other applications followed, including land-based catapults, pipeline pumpers, and marine propulsion Aeroderivatives had high reliability because of their origin
Background image of page 8
9 Analysis of Gas Turbines Uses air as the working fluid!!
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10 Properties of Air Perfect gas law Universal Gas Constant PV = Ν Τ 8.314 kJ/kg-mole•K Universal gas constant absolute temperature # of moles (kg•moles) Volume
Background image of page 10
11 What are kg•moles? Perfect gas law comes from Chemistry Chemists use cgs system without saying so (12 grams of carbon contain Avogadro’s number of molecules or one mole) they normally drop the “grams” when referring to atomic weight Engineers use kg•moles and lbm•moles How many moles of carbon in a kg•mole of carbon?
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
12 What is ? From Chemistry,
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 133

2011+gas_turbines - Gas Turbine Power Plants: Air is...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online