Thank you so much for explaining this! Your presentation, although making a few errors, was corrected brilliantly by your annotations and it really helped me understand exactly what I was looking to understand. I could not conceptualize how many BTUs it would take to heat a home, nor did I understand the unit before watching your video. Thank you for making this educational video! I greatly appreciate your explanation.
It is fun to see the US measurement system at work, even when using the metric system, paraphrasing: Joule comes from mechanics and therefore we need to multiply with a constant (4184) to use it in calculating heat. So rather than associating such constants to properties of the medium of interest (here water, indeed an obvious one), the tendency is to connect such constant to the unit of measurement, by which one can use unit of measurement only for distinct fields/branches. Logical that there is so many different ounces (troy, avoirdepoise, etc.), pounds, etc. And it is probably also the reason why it is so difficult to switch to metric: people need to learn that properties, such as specific heat, can have other values than "1".
*typo avoirdupois Right. Likewise, from Metric background, properties can have other whole number values besides multiples of 10, such as 3, 8, 12, 14, 16 ... Thanks for watching!
Hey the BTU concept is used in heat up or heat down as well to heating or air condition , the rate is BTU per hour also the calculation is made by about the length, width and height of the room . So ????
In your example of the conversion of 32 degree Fahrenheit water to 31degree degree ice you forgot to specify if the object was already in ice form or in liquid form. It takes some additional BTU's for a pound of ICE at 32 degrees to go to a pound of WATER at 32 degrees Fahrenheit.
+Luis Madrigal Time does not matter for the concept of heat quantity, but equipment is labelled and marketed PER HOUR, different form the concept of a ton of heat/cooling.
Thank you so much for explaining this! Your presentation, although making a few errors, was corrected brilliantly by your annotations and it really helped me understand exactly what I was looking to understand. I could not conceptualize how many BTUs it would take to heat a home, nor did I understand the unit before watching your video. Thank you for making this educational video! I greatly appreciate your explanation.
Really good
You're welcome, thanks for the feedback. My trades students go through a lot of this, thechnical definitions and rendering meaning to every word.
great job! keep going.
great information, very thoroughly explained
Nice , thankyou for such a great class.
Thankyou for the knowledge ✨
ONE OF THE EASY AND BEST EVER BEST EXPLANATION
thx
Grow room ideas
Good explanation except that 12000 Btu/hr = 1 ton (this is energy rate or "power")
and 12000 Btu = 1 ton-hr (energy total or "work")
good
Sir how to convert Three phase compressor LRA to ton
It is fun to see the US measurement system at work, even when using the metric system, paraphrasing: Joule comes from mechanics and therefore we need to multiply with a constant (4184) to use it in calculating heat. So rather than associating such constants to properties of the medium of interest (here water, indeed an obvious one), the tendency is to connect such constant to the unit of measurement, by which one can use unit of measurement only for distinct fields/branches. Logical that there is so many different ounces (troy, avoirdepoise, etc.), pounds, etc. And it is probably also the reason why it is so difficult to switch to metric: people need to learn that properties, such as specific heat, can have other values than "1".
*typo avoirdupois
Right. Likewise, from Metric background, properties can have other whole number values besides multiples of 10, such as 3, 8, 12, 14, 16 ...
Thanks for watching!
Hey the BTU concept is used in heat up or heat down as well to heating or air condition , the rate is BTU per hour also the calculation is made by about the length, width and height of the room . So ????
Rodri Costa 9
In your example of the conversion of 32 degree Fahrenheit water to 31degree degree ice you forgot to specify if the object was already in ice form or in liquid form. It takes some additional BTU's for a pound of ICE at 32 degrees to go to a pound of WATER at 32 degrees Fahrenheit.
Didn`t forget but tried to keep it at BTU without discussing latent heat, heat of fusion, sublimation, triple point and other distractors.
Is it 12000BTU/day or 12000 BTU/hour?
+Luis Madrigal Time does not matter for the concept of heat quantity, but equipment is labelled and marketed PER HOUR, different form the concept of a ton of heat/cooling.
so if you put two 9000 BTUs devices you get 18 000 BTUs?
In math, yes, in real life there are losses (inefficiency, insulation, leaks)
Then what is BTS
Sheila
Anyone else ever wondered why he wasn't removing the matchstick when he started writing
J