Perfect! I really wanted to see your heat capacity measurement methodology. :)
10 months ago
| 4
Thanks for sharing this...it makes more sense than in the original youtube video in terms of what your were trying to measure. I didn't watch the full test video, but typically when you're that far off from published literature...something wasn't properly tested. If you're showing 3.3x higher than typical literature...im not sure I would trust the test. Some things I can see that may affect your results: 1 - im not sure your control is really a control as it seemed like just an uncovered cup off to the side. This would mean you over attribute heat loss NOT from the phase change medium (thus underestimating heat absorption of the PCM). This wouldn't be as important if you didn't use such a different mass between the 2. You used a decently different mass between the 2, and they also phave a different density. That's going to increase the contact area with the cup which will drive more loss to the environment in your PCM. Sure the formula let's you calculate a result...but the physics of your test setup change the heat transfer dynamics. Again I didn't watch all of it so maybe I missed something important, but I'm really curious about the real data as I'm working on multiple projects that use PCMs.
10 months ago
| 0
Muscovite has several uses due to its unique properties. It is often used as a filler and extender in paints, coatings, and plastics. It is also used as a pigment in cosmetics and pharmaceuticals. Muscovite is also used as a component in the manufacture of ceramics, glass, and cement. Varieties Muscovite can occur in a variety of colors and forms, including: Fuchsite: A green variety of muscovite that contains chromium. Oellacherite: A barium-rich variety of muscovite. Rubidium-bearing Muscovite: A variety of muscovite that contains rubidium. Star Muscovite: A variety of muscovite that forms star-shaped aggregates.
10 months ago | 1
I think you need to try the cotton candy machine again. I think you were correct about the first attempt, the sugar in the j lube caramelized. I think in the second attempt using the pure additive you still had some oxidation of one or more components which gave that slight discoloration. I think you need to try again with the solvent still in the mixture and a lower heat. Just enough heat to get that solvent almost to its boiling point so the minute the solution starts to extrude in the machine, the solvent will flash off as the strands come flying out. Really enjoyed the video, and what a break through! Keep going and knit yourself a hat!!!!
9 months ago
| 0
I am a chemical engineer and fascinated with your projects! I am constantly working to find a better way to do things. Your video on the orthogonal array has recently got me thinking. If you have ever looked into NEAT(NeuroEvolution of augmenting topologies) it is an AI that replicates and evolves conditions based on specimen fitness. I think it is possible to do this better using the orthogonal array methodology you described. Basically a sudo AI program that runs the orthogonal array methodologies you described to expedite the evolutionary process to solve a problem rather than the mutation method in the NEAT. This is something I am very curious about and may explore myself, but figured you may be able to run with this one faster and better than I could. Again love the content.
10 months ago
| 0
Uncle Josivan has been following NHIL since the bottle gun airsoft days. When we used to have our own workshop we always tried to replicate what we saw on his channel. Seccond channel subbed. Easy choice!
10 months ago
| 0
Hi, I don't know the best way to reach out to you so I'm doing it here. Firstly, thank you for all of your work. Experimental science is the best! I have thought of an experiment which I don't have the time or resources to run, but I'd like to see the results of. It is simple: the double slit experiment with circles instead of straight lines. Do you think you could make a video of such a thing? I don't think you'd necessarily need to use a photon "blaster" for initial observations, and maybe you could simply use different coloured LEDs, to see how light mixes, with circular geometry? It's super interesting because the practical results of this correspond with human eye sight more so than slits. Let me know what you think. Thank you 🙏
9 months ago | 0
i got a idea for sky cooling panel.....instead of directly point ing the panel to the sky we can make more complex and more compact panel design by making a "input and output bus for infrared red light" that is to say in take the infrared light emmited by the cooling paint and shoot it out to the sky this is only hypothetical ;but basically : we have a box or a tube with the cooling paint on the inside the container and we have ..let say a fiber optic or a lens in the center that transfer all those infrared light to the nozzle on the outside or another cooling paint surface that is pointed directly at the sky and we input the heat within the building from a fluid pipe attach it to the cooling paint surfaces than cycle that back into the building basically concentrated solar but in reverse sort of
10 months ago | 0
Please create homemade brake cleaner, Heavy Duty Silicone spray will be nice too. We been using it a lot in automotive will be nice to be able to find some cheap alternative.
10 months ago
| 0
Hey night hawk, does varying the amount ofsl sodium chloride in a sodium sulfate PCM have a linear relationship to its "freezing " point? A working area of about 75 degrees f. would be perfect for me for a test. You mentioned using it to help regulate building temps and I wonder about using it to help a poorly air-conditioned/insulates apartment that fluctuates between 70 at night and 80ish in the day. (I am the suffering tenant, not the landlord. Lol)
10 months ago
| 0
A question about the first presented DIY PCM: If clothes are soaked inside the mixture, will the clothes in question become capable of retaining the insulation properties of the liquid, or will it leave immediately after a wash in a laundry?
10 months ago | 0
So, how about gasoline for dissolving silicone instead of naphthalene?
10 months ago | 0
I tried to reach out to you multiple times for the project suggestion that you recommended as per your request. Since you or your help have refused to reply, I am moving on. I do not like any form of deceit. You asked if anyone was interested, someone replied and you or your company ignored. Based on the evidence that was provided your statement asking people for a project with that particular material was untrue. I am moving on. I am also unsubscribing. Again for honesty sake. I will remain disappointed and disillusioned.
9 months ago | 0
Hello sir I was wondering where I could possibly email you, or send a message. I have a couple questions about one of your projects so I can apply.
9 months ago | 0
NightHawkInLight
For those interested in seeing more of the things I'm working on you can follow my second channel: youtube.com/@nhilextra?si=0elkrIg0l8QZrmJQ
Patreon livestreams are made public on that channel some time later than their recording. If you've seen my recent PCM project you will find the referenced stream in which I attempted a caloriometry experiment on the 18C PCM sample to compare cooling capacity with ice.
10 months ago (edited) | [YT] | 505