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Understanding Thermoacoustic Engines & Refrigerators (CZE Subtitles)

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  • Опубліковано 17 сер 2024
  • This is an animated video of thermo-acoustic devices which demonstrates the phenomenon of converting heat to sound and vice-versa.
    Lots of efforts were put to deliver a short video full of animations to clarify the concept behind engines and refrigerators that function according to the interaction between heat and sound.
    #trending #animation #engineering #mechanical #technology #thermoacoustics #machine #engine #refrigerator #acoustic

КОМЕНТАРІ • 24

  • @Nighthawkinlight
    @Nighthawkinlight 2 роки тому +9

    Excellent video!

    • @AhmadKouta
      @AhmadKouta  2 роки тому +3

      I appreciate it and would be so glad to cooperate on future videos!

    • @user-ov3gv8gd9k
      @user-ov3gv8gd9k 5 днів тому

      @@AhmadKouta 🔴 Human Rights and Justice in Islam
      🔵 Islam provides many human rights for the individual. The following are some of these human rights that Islam protects.
      🔴 The life and property of all citizens in an Islamic state are considered sacred, whether a person is Muslim or not. Islam also protects honor. So, in Islam, insulting others or making fun of them is not allowed.
      🔵 The Prophet Muhammad said: {Truly your blood, your property, and your honor are inviolable.}
      🔴 Racism is not allowed in Islam, for the Quran speaks of human equality in the following terms:
      { O mankind, We have created you from a male and a female and have made you into nations and tribes for you to know one another. Truly, the noblest of you with God is the most pious.2 Truly, God is All-Knowing, All-Aware.} (Quran, 49:13)
      🔵 Islam rejects certain individuals or nations being favored because of their wealth, power, or race. God created human beings as equals who are to be distinguished from each other only on the basis of their faith and piety.
      🔴 The Prophet Muhammad said: {O people! Your God is one and your forefather (Adam) is one. An Arab is not better than a non-Arab and a non-Arab is not better than an Arab, and a red (i.e. white tinged with red) person is not better than a black person and a black person is not better than a red person, except in piety.}
      🔵 One of the major problems facing mankind today is racism. The developed world can send a man to the moon but cannot stop man from hating and fighting his fellow man. Ever since the days of the Prophet Muhammad , Islam has provided a vivid example of how racism can be ended. The annual pilgrimage (Hajj) to Makkah shows the real Islamic brotherhood of all races and nations, when about two million Muslims from all over the world come to Makkah to perform the pilgrimage.
      🔴 Islam is a religion of justice. God has said:
      { Truly God commands you to give back trusts to those to whom they are due, and when you judge between people, to judge with justice....} (Quran, 4:58)
      🔵 And He has said:
      { ...And act justly. Truly, God loves those who are just.} (Quran, 49:9)
      🔴 We should even be just with those who we hate, as God has said:
      { ...And let not the hatred of others make you avoid justice. Be just: that is nearer to piety....} (Quran, 5:8)
      🔵 The Prophet Muhammad said: {People, beware of injustice, for injustice shall be darkness on the Day of Judgment.}
      🔴 And those who have not gotten their rights (i.e. what they have a just claim to) in this life will receive them on the Day of Judgment, as the Prophet said: {On the Day of Judgment, rights will be given to those to whom they are due (and wrongs will be redressed)...}

  • @sierraecho884
    @sierraecho884 10 місяців тому +1

    Great video, very short and well explained.

  • @kifuruguta2248
    @kifuruguta2248 Рік тому +1

    Thank you for this excellent video !

  • @jamesdim
    @jamesdim 2 роки тому +2

    Great explanation! Thank you!

  • @dkby
    @dkby 2 роки тому +2

    Quality content, thanks

  • @user-gj1nh4vd2c
    @user-gj1nh4vd2c Рік тому +1

    excellent!

  • @deinemutter758
    @deinemutter758 8 місяців тому +1

    ❤Hammer❤ thank you it's amazing. The idea it's just genius ❤

  • @Sol-En
    @Sol-En 2 роки тому +2

    Great video ! Do you do scientific research in thermoacoustic ?

  • @tiredironrepair
    @tiredironrepair Місяць тому

    Around what globe?

  • @tombouie
    @tombouie Рік тому

    I understand it works empirically;
    However ?how can I derive the thermoacoustic effect? from well-establidhed physics
    For ex: ?how the heck does the temperature gradient cause a sound wave?

  • @hallowedchild5022
    @hallowedchild5022 Рік тому +1

    Sounds like that needs alot of Ai modling replacing the speaker with a modified tuning fork made of carbon nanotubes to keep the acoustic wave ossolating inside the modified heat synch resonance chamber with a little bell like system to get it going with a shake and let it rest... ideas no workshops

  • @tombouie
    @tombouie Рік тому

    Good-Stuff

  • @igorigor5973
    @igorigor5973 Рік тому +1

    How to calculate thermoacoustic engine efficiency?

    • @AhmadKouta
      @AhmadKouta  Рік тому +2

      The efficiency of a thermoacoustic engine is equal to the acoustic power (desired output) divided by the hot heat flux (required input).

  • @user-du3rx5ob3p
    @user-du3rx5ob3p Рік тому

    Is the frequency of the piston the same as the closed tube frequency? Or what is the frequency of the piston related to?

    • @AhmadKouta
      @AhmadKouta  Рік тому +3

      Not necessarily the case. However, it is possible to match the frequency of the piston to the resonance frequency of the system (resonator tube) to achieve optimal performance. This is known as lock-in or synchronization. When the frequency of the piston is close to the resonance frequency of the system, the energy input to the system will be most efficiently converted into thermal energy, resulting in the highest temperature difference between the hot and cold end of the system.

  • @BobSmith-yq1gb
    @BobSmith-yq1gb Рік тому

    What size acoustic Refrigeration can be used on a refrigerator and is it cost effective

    • @AhmadKouta
      @AhmadKouta  Рік тому +2

      Most prototypes are used for research and experimenting and are not available for commercial use. However, in regards to sizing, total length varies around 60cm with the large diameter equal to that of the loudspeaker. But it could not yet compete with conventional units due to its lower efficiency and power losses.

  • @plugplagiate1564
    @plugplagiate1564 5 місяців тому

    do not forget the rectifier, ... 🙂

  • @forhadahmed4643
    @forhadahmed4643 2 місяці тому

    not useful in daily used refrigerator or air conditioner...

  • @deinemutter758
    @deinemutter758 8 місяців тому

    ❤Hammer❤ thank you it's amazing. The idea it's just genius ❤