An Outline of the Increased Efficiency of Gas Turbine Engines

My interests lie in the field of composite materials, their production and the various fabrication processes involved during composite manufacturing and their quality control. It is possible to meet diverse design requirements by using composite materials and it also provides significant weight reduction and a better strength to

CFD concentrates to quantify internal flow physics, use of commercial codes and creating in house codes. Thermo acoustics and other configurations are investigates under alternative engine study to increase power density and enhance reliability. Extension of operation life, high temperature abilities and engine performance are focused in advanced materials research.

Boeing’s newest jet, the 787, is made out of composite plastics and carbon fiber in order to

In order to make gas turbines cost effective there is a need to improve overall cycle efficiency. Gas turbines fundamentally operate by utilisation of a compressor and turbine to drive a common shaft. The rotating shaft can then be connected to a generator to provide electricity, a propeller for ships or the turbine can be utilised to provide propulsion of aircraft. However this report will focus on the gas turbine within the power generation industry and will look at modifications and improvements in design which can increase overall efficiency and cost effectiveness. In short the improvements made to the gas turbine are as follows:

Because many great innovations are being employed in the engine design such as: direct air intake, sequential variable compression ratio, super mixing process, constant volume combustion, controllable combustion time, high working temperature of the burner, high expansion ratio and self adapting sealing system etc., the thermal efficiency of the engine could be potentially as high as 65 %, even more if water add-in technology is to be

There are many ways one could use to improve the fuel efficiency of an aircraft. However, I would like to focus on one in particular which is the PurePower Geared Turbofan Engine by Pratt and Whitney. The Geared Turbofan Engine was first used on small private jets by Honeywell but they never advanced the technology. Pratt and Whitney decided to work on it so that engines could be more efficient, even though it took them more than 20 years to do it.

Noting the possible economic benefits, and the willingness of consumers to buy clean cars at reasonable prices, automobile manufacturers have been seriously looking into hydrogen fuel-cell cars. For example, General Motors has been researching a 100% fuel-cell powered car that could change the basis of traditional car design by removing the drive-shaft used in internal combustion engines, which frees up the body of the car for substantial reorganization

aero-engine design with stage pressure ratio of 3.2 and nozzle guide vane Reynolds number of 2.54 × 10 6 .

The majority of TBCs in use today are ZrO2-based having a composition containing ∼8 wt% Y2O3 (8YSZ). Originally, this ceramic was selected empirically based on its low thermal conductivity (~1 W/mK), high

Wind turbine technology, dormant for many years, awoke at the end of the 20thcentury to a world of new opportunities. Developments in many other areas of technology were adapted to wind turbines and have helped to

Significant energy demands related to population growth together with environmental concerns about the effects of fossil fuel usage (e.g., global warming) resulting in more stringent legislation for engine pollutant emissions have been attracting new interest in renewable, sustainable and environmentally friendly energy resources. Many ways have been applied or employed to reduce emissions levels as well as improve engine efficiency. Some fuels additive are being investigated and they have potential of emissions limited to, keeping the extra cost to the minimum as can possible. Alcohol biofuel such as ethanol, butanol are extensively investigated and commercially used. The experimental results revealed that significantly

Turbine blades have to be able to endure temperatures around and greater then 500OC, in order for them to be useful. A reasonably lightweight alloy commonly used in the production of turbine blades is an often a long SiC-fibre reinforced titanium alloy for the highly mechanically loaded parts. By using "sputtering" techniques followed by hot isostatic pressing cycles, the components then become strengthened in comparison to conventional materials, which are manufactured.

In the world of depleting fossil fuels and increasing pollution, achieving fuel efficiency and reducing the emissions are the main tasks set by the automotive companies. Low temperature combustion (LTC) engine is the emerging engine technology that produce less emissions and high fuel efficiency than the spark ignition and compression ignition engines. Homogeneous charge compression ignition (HCCI) engine is one of the LTC engines which uses pre-mixed fuel air as in spark ignition engines and depends on the compression ignition. In the HCCI engines the removal of throttle valve and the use of oxidation catalysts allows for high fuel efficiency and lower carbon dioxide and carbon

To enhance the efficiency of Mechanical and Thermal is the major driver for the Engines team, owning to the requirement for continually reducing the CO2 output of the vehicles. Downsizing is the main focus, while friction reduction, pumping losses reduction and combustion efficiency are largely emphasized with the help of engine de-throttling.

Therefore, a current solution would unite the characteristics of the hydrogen internal combustion engine, using for improving the burning efficiency, due to high flame speed and higher calorific value during combustion of hydrogen.