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Hilsch" Vortex Tubeتبريد وتسخين الهواء في ان واحد

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  1. [1]
    الصورة الرمزية حامد الحمداوي
    حامد الحمداوي
    حامد الحمداوي غير متواجد حالياً

    عضو متميز

    تاريخ التسجيل: Nov 2007
    المشاركات: 1,739
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    Hilsch" Vortex Tubeتبريد وتسخين الهواء في ان واحد

    HILSCH" VORTEX TUBE

    المبدا ليس بجديد .. وببساطة هو عملية تمرير الهواء من خلال انبوب بشكل معين وبنهايتين يخرج من احدها هواء بارد تقريبا -30 ..12 مئوي واخر حار تقريبا + 70..170 مئوي . واليكم التفاصيل
    وتفاصيل اكثر من الرابط التالي
    http://www.vortec.com/vortex_tubes.php

    With nothing more than a few pieces of plumbing and a source of compressed air, you can build a remarkably simple device for attaining moderately low temperatures. It separates high-energy molecules from those of low energy. George O. Smith, an engineer of Rumson, N. I., discusses its theory and construction

    The 19th century British physicist James Clerk Maxwell made many deep contributions to physics, and among the most significant was his law of random distribution. Considering. the case of a closed box containing a gas, Maxwell started off by saying that the temperature of the gas was due to the motion of the individual gas molecules within the box. But since the box was standing still, it stood to reason that the summation of the velocity and direction of the individual gas molecules must come to zero.

    In essence Maxwell's law of random distribution says that for every gas molecule headed east at 20 miles per hour, there must be another headed west at the same speed. Furthermore, if the heat of the gas indicates that the average velocity of the molecules is 20 miles per hour, the number of molecules moving slower than this speed must be equaled by the number of molecules moving faster.

    After a serious analysis of the consequences of his law, Maxwell permitted himself a touch of humor. He suggested that there was a statistical probability that; at some time in the future, all the molecules in a box of gas or a glass of hot water might be moving in the same direction. This would cause the water to rise out of the glass. Next Maxwell suggested that a system of drawing both hot and cold water out of a single pipe might be devised if we could capture a small demon and train him to open and close a tiny valve. The demon would open the valve only when a fast molecule approached it, and close the valve against slow molecules. The water coming out of the valve would thus be hot. To produce a stream of cold water the demon would open the valve only for slow molecules.

    Maxwell's demon would circumvent the law of thermodynamics which says in essence: "You can't get something for nothing." That is to say, one cannot separate cold water from hot without doing work. Thus when physicists heard that the Germans had developed a device which could achieve low temperatures by utilizing Maxwell's demon, they were intrigued, though obviously skeptical. One physicist investigated the matter at first hand for the U. S. Navy. He discovered that the device was most ingenious, though not quite as miraculous as had been rumored

    when compressed air is admitted to the "leg" of the T, hot air comes out of one arm of the T and cold air out of the other arm! Obviously, however, work must be done to compress the air.







  2. [2]
    مهندس أيمن حسن
    مهندس أيمن حسن غير متواجد حالياً
    مشرف متميز
    الصورة الرمزية مهندس أيمن حسن


    تاريخ التسجيل: Apr 2008
    المشاركات: 3,733

    وسام مشرف متميز

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    جزاك الله خيرا

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  3. [3]
    حامد الحمداوي
    حامد الحمداوي غير متواجد حالياً
    عضو متميز
    الصورة الرمزية حامد الحمداوي


    تاريخ التسجيل: Nov 2007
    المشاركات: 1,739
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    Given: 7
    اقتباس المشاركة الأصلية كتبت بواسطة مهندس أيمن حسن مشاهدة المشاركة
    جزاك الله خيرا

    رمضان كريم
    وتقبل الله منكم
    وشكرا للمرور النبيل

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  4. [4]
    mnci
    mnci غير متواجد حالياً
    تم إيقافه لمخالفة القوانين
    الصورة الرمزية mnci


    تاريخ التسجيل: Jul 2006
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    جزاك الله خيرا صديقى حامد واضيف بحث حول هذا الموضوع بعنوان
    Experimental Investigation on Energy Separation by Vortex Tubes

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  5. [5]
    حامد الحمداوي
    حامد الحمداوي غير متواجد حالياً
    عضو متميز
    الصورة الرمزية حامد الحمداوي


    تاريخ التسجيل: Nov 2007
    المشاركات: 1,739
    Thumbs Up
    Received: 5
    Given: 7
    اقتباس المشاركة الأصلية كتبت بواسطة mnci مشاهدة المشاركة
    جزاك الله خيرا صديقى حامد واضيف بحث حول هذا الموضوع بعنوان
    experimental Investigation On Energy Separation By Vortex Tubes
    تسلم حبيبي
    وجزاك الله خيرا

    0 Not allowed!



  
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