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Ultrasonic NDE and Characterization of Aerospace Materials


Posted by: Computer Science Clay
Created at: Saturday 06th of June 2009 10:57:48 PM
Last Edited Or Replied at :Saturday 06th of June 2009 10:57:48 PM
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, (4) ray tracing model for characterizing fiber waviness in thick composites, (5) real-time monitoring of damage evolution in ceramic-matrix composite, (6) monitoring of matrix cracking, (7) ultrasonic phased arrays and processing of array data, (8) synthe..................[:=> Show Contents <=:]



Fuel Cells on Aerospace


Posted by: computer science crazy
Created at: Tuesday 07th of April 2009 12:41:38 PM
Last Edited Or Replied at :Tuesday 07th of April 2009 12:41:38 PM
Aerospace , Cells, Fuel ,
efficiency fuel cells into powering automobiles, buses and trucks. Fuel cells are more efficient than the secondary batteries used. First Alkali fuel cells are used in aircrafts, but now a days fuel cells using Proton Exchange Membrane are used. A fuel cell can theoretically, deliver 500 kilowatt-hours per kilogram of hydrogen plus oxygen. Todayâ„¢s best lithium batteries can deliver around 120 kWh per kilogram. Fuel cells can convert fuel to electric power with an efficiency of over 80%. Even a diesel engine cannot do better than 40% at itâ„¢s optimum speed and load. In the past, fue..................[:=> Show Contents <=:]



Thermal Barrier Coatings


Posted by: Computer Science Clay
Created at: Sunday 01st of March 2009 02:05:00 AM
Last Edited Or Replied at :Friday 01st of April 2011 01:19:53 AM
thermal barrier coatings for gas turbines , thermal barrier coatings for pistons, thermal barrier coatings for headers , thermal barrier coatings for aerospace applications, thermal barrier coatings for engines , thermal barrier coatings for turbine blades, thermal barrier coatings for gas turbine engine applications , thermal barrier coatings applications, thermal barrier coatings automotive , thermal barrier coatings application, Thermal Barrier Coatings , Coatings, Barrier , Thermal, projects on thermal barrier coatings , thermal barrier coatings, thermal barrier coatings seminar projects , thermal barrier coatings ppt ysz,
ngs. In the first and second stage of a gas turbine, metal temperatures may exceed 850°C, and two predominant corrosion mechanisms have been identified:

Accelerated high temperature oxidation (>950°C) where reactions between the coating and oxidants in the gaseous phase produce oxides on the coating surface as well as internal penetration of oxides/sulphides within the coating, depending on the level of gas phase contaminants

Type I hot corrosion (850 - 950°C) where corrosion occurs through reaction with salts deposited from the vapour phase (from impurities in th..................[:=> Show Contents <=:]



BIOFUEL CELLS


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 12:54:58 PM
Last Edited Or Replied at :Tuesday 05th of October 2010 06:50:47 AM
CELLS , BIOFUEL, fuel cells on aerospace latest chemical seminar topic , powerpoint presentation on biofuel seminar topic, biofuel cells full report , biofuel cells seminar,
d will abate particularly amongst the developing nations, there is now an awareness of the transience of non-renewable resources and the irreversible damage caused to the environment. The fast growing technology demands from us, small, light power sources that are able to sustain operation over a long period of time. Extending the life span of batteries and thus miniaturization of equipments will benefit more in the bio-engineering field. The problem of supplying energy to the implanted medical devices is extremely challenging even though continuous efforts of research and studies have led to ..................[:=> Show Contents <=:]



FUELL CELLS ON AEROSPACE


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 12:49:26 PM
Last Edited Or Replied at :Friday 30th of January 2009 12:49:26 PM
AEROSPACE , CELLS, FUELL , fuel cells on aerospace,
ls are used in aircrafts, but now a days fuel cells using Proton Exchange Membrane are used. A fuel cell can theoretically, deliver 500 kilowatt-hours per kilogram of hydrogen plus oxygen. Today?s best lithium batteries can deliver around 120 kWh per kilogram. Fuel cells can convert fuel to electric power with an efficiency of over 80%. Even a diesel engine cannot do better than 40% at it?s optimum speed and load. In the past, fuel cells contained a platinum catalyst that is very costly. Now a nickel-tin catalyst which works was discovered. As a result, fuel cells can be a possible substitute ..................[:=> Show Contents <=:]



FUELL CELLS ON AEROSPACE


Posted by: seminar projects crazy
Created at: Thursday 29th of January 2009 12:36:11 PM
Last Edited Or Replied at :Thursday 29th of January 2009 12:36:11 PM
AEROSPACE , CELLS, FUELL ,
er from stored hydrogen and oxygen that are carried in cryogenic liquid form. The world?s petroleum production is about to pass its peak, so a world wide development effort is being directed into adapting these high efficiency fuel cells into powering automobiles, buses and trucks. Fuel cells are more efficient than the secondary batteries used. First Alkali fuel cells are used in aircrafts, but now a days fuel cells using Proton Exchange Membrane are used. A fuel cell can theoretically, deliver 500 kilowatt-hours per kilogram of hydrogen plus oxygen. Today?s best lithium batteries can deliver..................[:=> Show Contents <=:]



Fuel Cells on Aerospace


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:33:25 PM
Last Edited Or Replied at :Sunday 02nd of October 2011 11:07:37 PM
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sed in aircrafts, but now a days fuel cells using Proton Exchange Membrane are used.

A fuel cell can theoretically, deliver 500 kilowatt-hours per kilogram of hydrogen plus oxygen. Today?s best lithium batteries can deliver around 120 kWh per kilogram. Fuel cells can convert fuel to electric power with an efficiency of over 80%. Even a diesel engine cannot do better than 40% at it?s optimum speed and load.

In the past, fuel cells contained a platinum catalyst that is very costly. Now a nickel-tin catalyst which works was discovered. As a result, fuel cells can be a possible substitute ..................[:=> Show Contents <=:]



Hybrid Synergy Drive HSD


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:15:49 PM
Last Edited Or Replied at :Sunday 30th of December 2012 11:57:17 PM
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em with no direct mechanical connection between the engine and the engine controls: both the gas pedal and the gearshift lever in an HSD car merely send electrical signals to a control computer.

HSD is a refinement of the original Toyota Hybrid System (THS) used in the 1997“2003 Toyota Prius. As such it is occasionally referred to as THS II. The name was changed in anticipation of its use in vehicles outside the Toyota brand (Lexus).

When required to classify the transmission type of an HSD vehicle (such as in standard specification lists or for regulatory purposes), Toyota describ..................[:=> Show Contents <=:]



Fuel Cells on Aerospace


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:13:32 PM
Last Edited Or Replied at :Thursday 20th of February 2014 04:32:04 PM
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ctronics...................[:=> Show Contents <=:]



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