Heat transmission in a heat pipe and a copper pipe
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- Опубликовано: 20 авг 2024
- The heat transport in a copper tube is carried out by continuous transfer of the heat energy from one atom to another, while in a heat tube the condensation heat of the water vapour in the tube is responsible for this. The temperature difference is made visible with thermochromic paint.
Thermochromic paint is available here:
www.ebay.de/it...
That is actually quite impressive.
Very cool idea to use thermal paper to show heat flow!
Die besten Stummfilme seit Charlie Chaplin!
Such a simple yet effective way of showing it off! I'll have to remember your paint trick.
Very cool demo thanks.
Excellent demonstration 👍😎
Sau cooles Experiment! :)
one insulated pipe and one which looses its heat fast because it is thin. But the thin copper pipe was faster untill it lost its ability to retain heat.
Thats not how it works. The "insulated pipe" is also very thin and hollow and has water vapor inside - so even though you cant see it it starting conducting more heat right from the start, but it is so efficient spreading the heat across its entire length that it takes a bit more time for it to heat up enough for the color of the thermochromatic paint to change.
@@jeffreylebowski4927👉🔴What Do Muslims Believe about Jesus?
Muslims respect and revere Jesus (peace be upon him). They consider him one of the greatest of God’s messengers to mankind. The Quran confirms his virgin birth, and a chapter of the Quran is entitled ‘Maryam’ (Mary). The Quran describes the birth of Jesus as follows:
(Remember) when the angels said, “O Mary, God gives you good news of a word from Him (God), whose name is the Messiah Jesus, son of Mary, revered in this world and the Hereafter, and one of those brought near (to God). He will speak to the people from his cradle and as a man, and he is of the righteous.” She said, “My Lord, how can I have a child when no mortal has touched me?” He said, “So (it will be). God creates what He wills. If He decrees a thing, He says to it only, ‘Be!’ and it is.” (Quran, 3:45-47)
Jesus was born miraculously by the command of God, the same command that had brought Adam into being with neither a father nor a mother. God has said:
The case of Jesus with God is like the case of Adam. He created him from dust, and then He said to him, “Be!” and he came into being. (Quran, 3:59)
During his prophetic mission, Jesus performed many miracles. God tells us that Jesus said:
“I have come to you with a sign from your Lord. I make for you the shape of a bird out of clay, I breathe into it, and it becomes a bird by God’s permission. I heal the blind from birth and the leper. And I bring the dead to life by God’s permission. And I tell you what you eat and what you store in your houses....” (Quran, 3:49)
Muslims believe that Jesus was not crucified. It was the plan of Jesus’ enemies to crucify him, but God saved him and raised him up to Him. And the likeness of Jesus was put over another man. Jesus’ enemies took this man and crucified him, thinking that he was Jesus. God has said:
...They said, “We killed the Messiah Jesus, son of Mary, the messenger of God.” They did not kill him, nor did they crucify him, but the likeness of him was put on another man (and they killed that man)... (Quran, 4:157)
Neither Muhammad nor Jesus came to change the basic doctrine of the belief in one God, brought by earlier prophets, but rather to confirm and renew it.
Super
What tool crimps the end of the copper pipe to a point?
Ich habe mich einmal ausführlich mit heat pipes beschäftigt, als ich lüfterlose und Dampfstrahler. Sichere PCs gebaut habe. Der Wirkungsgrad ist sehr lageabhäbgig. Wenn das kalte Ende deutlich über dem warmen Ende ist, dann ist alles gut. Gleiche höhe ist nicht gut und andersrum ist ganz schlecht.
Da gibt es verschiedene Ausführungen,das Kondensat wieder zurück zu führen.Diese heat pipe war in einem Verstärker waagerecht eingebaut.Ich glaube es war ein DDR Modell.Die Transistoren waren auf einem Alublock geschraubt,durch den die heat pipe ging.Der Rest der Röhre war mit Alublechrippen versehen.
xofunkox-scientific experiments Ich weiß, dass es heat pipes gibt, die bei horizontal nicht ganz so schlecht sind. Vertikal können sie aber trotzdem am besten. Die Schwerkraft hilft ungemein beim Rückfluss des Transportmediums. Du kannst es ausprobieren :-) Die Idee mit der Temperaturanzeige is super.
oh
Kann mir jemand das erklären? Ich checks nicht
Google einfach "Wärmerohr".
Amazing what a few drops of water can do in a vacuum
I wonder though, how different would it be if theres more water in it? Does it simply not work?
@@de0509 As far as i know you want the wick layer inside of the heatpipe to be saturated but you dont want any "loose" water slushing around in the pipe as that would block the vapor space from conducting heat away. - the vapor space is what is so insanely conductive about 230.000 W/mK - solid copper only has 400 W/mK.