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Vortex refrigeration


Posted by: summer project pal
Created at: Sunday 09th of January 2011 07:07:54 PM
Last Edited Or Replied at :Sunday 09th of January 2011 07:07:54 PM
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r the propeller is developing thrust. In less than one wing chord downstream of the trailing edge of the wing these small vortices merge to form a single vortex. If viewed from the tail of the airplane, looking forward in the direction of flight, there is one wingtip vortex trailing from the left-hand wing and circulating clockwise, and another wingtip vortex trailing from the right-hand wing and circulating anti-clockwise. The result is a region of downwash behind the wing, between the pair of wingtip vortices. These two wingtip vortices do not merge because they are circulating in opposite d..................[:=> Show Contents <=:]



magnetic refrigeration ppt


Posted by: shalini.50
Created at: Thursday 22nd of July 2010 10:45:21 AM
Last Edited Or Replied at :Saturday 06th of October 2012 04:39:38 AM
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DESIGN AND FABRICATION OF PULSE TUBE REFRIGERATION SYSTEM full report


Posted by: project report tiger
Created at: Thursday 04th of March 2010 03:01:33 AM
Last Edited Or Replied at :Monday 18th of October 2010 11:41:19 PM
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ND DISCUSSION
VARIATION OF CROSS SECTIONAL AREA OF ORIFICE ON OUTPUT PARAMETERS
The cross sectional area of the orifice was varied from 0.2 mm2 to 1.1 mm2. The values obtained are given below.
Table 4.1: Variation of orifice area.
SI No Orifice area (mm2) Pressure ratio Input Power (W) Refrigeration Power (W) Refrigeration Power/ Mass flow (kJ/kg)
1 0.2 1.49799 55.33803 11.07981 7.75113
2 0.3 1.4659 75.79030 15.12563 9.91248
3 0.4 1.43755 93.03354 18.53474 11.34576
4 0.5 1.42867 115.11232 23.14549 13.18287
5 0.6 1.37415 113.26436 22.40400 12.01510
6 0.7 1.34152 116.82361 22.95918 11...................[:=> Show Contents <=:]



magnetic refrigeration full report


Posted by: project report tiger
Created at: Wednesday 17th of February 2010 03:44:18 AM
Last Edited Or Replied at :Friday 20th of July 2012 12:39:48 AM
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t=2287]


SYNOPSIS


Magnetic refrigeration is an alternate method of producing refrigeration. This finds great importance now a day because of the world wide ban of environmental damaging substance like chloroflurocarbon, which is used in conventional vapor compression refrigeration. Magnetic refrigeration is based on phenomenon called magneto caloric effect. A quick review of the different stages of development made in magnetic refrigeration is done in this paper. And a proto type of magnetic refrigerator that works at room temperature is discussed .the magnetic material is cyclically ..................[:=> Show Contents <=:]



thermoacoustic refrigeration full report


Posted by: project report tiger
Created at: Monday 15th of February 2010 01:53:06 AM
Last Edited Or Replied at :Thursday 06th of December 2012 02:12:36 AM
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dium
Loudspeaker as Acoustic Driver


THERMOACOUSTICS

Definition
Background
Uses sound to create cooling
No moving parts inside device
Tremendous Opportunities
Saves energy
Economic potential
Good for the environment

APPLICATIONS

Heat Powered TAR
beer cooler
Coolahoop
Electrically powered TAR
spacecraft applications
Superconductivity
Cooling of computer chips


CONCLUSION

Thermoacoustic effects occur in everyday life are too small

low cost is more important than efficiency

Considerable study requires to reach acoustic devices to thei..................[:=> Show Contents <=:]



thermoaccoustic refrigerator


Posted by: gopikrishna303
Created at: Thursday 21st of January 2010 09:20:23 AM
Last Edited Or Replied at :Friday 22nd of January 2010 09:16:52 AM
thermoacoustic refrigeration ppt , tabletop thermoacoustic refrigerator for demonstrations, thermoacoustic refrigerator design and performance , thermoaccoustic refrigerator, refrigerator , thermoaccoustic, thermoaccoustic refrigeration ,
i need ppt'..................[:=> Show Contents <=:]



Magnetic Refrigeration


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:37:41 PM
Last Edited Or Replied at :Monday 11th of March 2013 04:11:11 AM
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nd reducing the use of fossil fuels. Define the perfect fuel and it would most lightly be one that burns cleanly, poses no harm to the environment and, above all, is renewable or in limitless supply.

The researchers in the U.S Department of Energy?s Ames Laboratory under a construct with the Astronautics Corporation of America have developed a refrigerator with out a standard gas-compression cooling system. Magnetic refrigeration is based on the ?Magnetocaloric effect?. This effect, discovered in 1881, is defined as the response of a solid to an applied magnetic field which is apparent as ..................[:=> Show Contents <=:]



Thermo Acoustic Refrigeration


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:25:25 PM
Last Edited Or Replied at :Thursday 06th of June 2013 12:21:26 AM
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ficiency utilization can not be increased at least at par with the traditional vapour compressor counterpart. The paper deals with the basic concept of thermo acoustic refrigeration, two working prototypes of thermo acoustic refrigerators, features, merits and demerits of thermo acoustic refrige..................[:=> Show Contents <=:]



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