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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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work, W.E.Gifford and R.C.Longsworth suggested that only the gas element traveling between the cold and warm exchangers be responsible for the refrigeration effect. This lead to the concept of pressure ratio below which the pulse tube could not work. But the fact that the pulse tube provides refrigeration performances at very low-pressure ratios implies that heat is pumped from the cold end to the warm end of the pulse tube step by step, provided that there exist proper thermal interactions between the gas elements and the tube wall. W.E.Gifford and R.C.Longsworth described this effect as the..................[:=> Show Contents <=:]



advantages and disadvantages of pulse tube refrigeration ppt


Posted by:
Created at: Saturday 29th of September 2012 11:28:49 PM
Last Edited Or Replied at :Saturday 29th of September 2012 11:28:49 PM
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sir i want to do my seminar and it requires the advanteges and diadvanteges of pulsetube rf..................[:=> Show Contents <=:]



pulse tube refrigerator


Posted by: nathi302
Created at: Monday 06th of December 2010 08:50:38 AM
Last Edited Or Replied at :Monday 06th of December 2010 10:01:37 PM
projects topic on pulse tube refrigerator , pulse tube cryocooler,
n,so I need the above seminars details and I donot know any thing about this pulse tube refrigerator,so I expect your reply for my mail .any how Iam feeling great to have an oppurtunity to recieve some information from you

Thank You,,,
..................[:=> Show Contents <=:]



CFD SIMULATION OF ORIFICE PULSE TUBE REFRIGERATOR


Posted by: project report helper
Created at: Saturday 16th of October 2010 06:35:16 AM
Last Edited Or Replied at :Saturday 16th of October 2010 06:35:16 AM
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l package, Fluent and also to examine the performance for the effect of compressor frequency on the orifice type pulse tube refrigerator (OPTR). The results confirm that CFD based Fluent simulations are capable of elucidating complex periodic processes in OPTRs. As a result, the performance analysis also shows that an optimum frequency always exists corresponding to the minimum cold end temperature for same operating boundary conditions. Results show that at high frequency the secondary-flow recirculation occur at the vicinity of component-to-component junctions to reduce the heat pumping effe..................[:=> Show Contents <=:]



HYDRO POWER PLANT presentation


Posted by: project topics
Created at: Wednesday 21st of April 2010 12:09:13 AM
Last Edited Or Replied at :Friday 15th of March 2013 05:53:57 AM
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Presented by:
RITEE

CHHATTISGARH SWAMI VIVEKANAND TECHINICAL UNIVERSITY , BHILAI

INTRODUCTION
HYDRO POWER

1) One of the most widely used renewable source of energy for generating electricity on large scale basis is hydropower
2) The power obtained from river or ocean water is called as hydropower
3) Hydropower is the renewable source of energy since water is available in large quantities from rain, rivers, and oceans and this is will be available for unlimited time to come



TYPES OF HYDRO POWER PLANT

1)..................[:=> Show Contents <=:]



magnetic refrigaration


Posted by: mrigendrakumar
Created at: Wednesday 31st of March 2010 07:07:33 AM
Last Edited Or Replied at :Thursday 01st of April 2010 01:56:36 AM
pulse tube refrigeratorsmagnetic refrigaration , pulse tube refrigeratorsmagnets, pulse tube coolers , liquid helium cryostat, magnets , magnetic, refrigaration , working model of magnetic refrigerator,
Regarding Magnetic refrigeration: It is mentioned in synopsis that a proto- type of magnetic refrigerator that works at room tempera..................[:=> Show Contents <=:]



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
DESIGN AND FABRICATION OF PULSE TUBE REFRIGERATION SYSTEM pdf, DESIGN AND FABRICATION OF PULSE TUBE REFRIGERATION SYSTEM ppt , DESIGN AND FABRICATION OF PULSE TUBE REFRIGERATION SYSTEM, report , full, SYSTEM , REFRIGERATION, TUBE , PULSE, FABRICATION , DESIGN, pulse tube refrigerator ppt , pulse tube refrigeration system pdf, pulse tube refrigerator , pulse tube refrigeration system ppt, pulse tube refrigeration system , pulse tube, what do mean by ptr tube pipe , gm refrigerators project report, pulse tube info , pulse tube refrigeration, fabrication design refrigerator , vortex tube refrigeration system study material, fabrication of refrigerator system pdf , project report on refrigeration system, advantages and disadvantages of pulse tube refrigeration ppt , pulse tube refrigerator principle, doc design analysis fabrication and spring testing maching seminar report , ppt working principle of pulse tube refrigerator,
on of dp7/dt Do 80 i= l,nplus 1
Dp7 by dt (i) = mO dot (i)*gas const t0/v7 80 continue
Calculation of p7
Do 82 i=l,nplus 1 Dtx =tim (2)-tim(l) P7(i)=p7(i) + dp7 by dt (i)*dtx
82 continue
K=k+1
If (k.it.3) go to 72' Do 83 i=l,n plus 1
Write (1,*) tim (i),p(i),p7(i),m0 dot(i)
83 continue
72 calculation of p7avg Sp7=0.0 Do 84i=1.0 Sp7=sp7+p7(i)
84 continue
P7avg=sp7/n
Write(3,*)'p7avg=',p7avg Mass flow rate at section 1 Do 85i=l,nplusl
Xx=(vl *dpbydt(i)/(gas const*T0) M1 dot(i)=mOdot(i).xx,ml dot(i)
85 continue
Mass flow rate integration
Sum=0.0
Do90i=l,n
J=i+1
Tstart=tim(i) Te..................[:=> Show Contents <=:]



Thermoacoustic Refrigerator


Posted by: mechanical wiki
Created at: Thursday 03rd of September 2009 12:40:07 PM
Last Edited Or Replied at :Sunday 01st of August 2010 09:05:10 PM
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tion of all these oscillations, and their interaction with solid boundaries produces a rich variety of Thermoacoustic effects. Although these effects as they occur in everyday life are too small to be noticed, one can harness extremely loud sound waves in acoustically sealed chambers to produce powerful heat engines, heat pumps and refrigerators. Whereas typical engines and refrigerators have different moving parts Thermoacoustic engines and refrigerators have almost a single flexing moving part (loud speaker) with no sliding seals.
In thermoacoustic primemovers heat flow from a high temperat..................[:=> Show Contents <=:]



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