Recent content by AngelLestat

One quick edit (sorry for double post) Something I did not take into account in my new heat exchanger design, is that the lake water temperature at the top of the PVC tube would be higher temperature than in the bottom, this in part interrupt the natural convection that I wanted to achieve. I...

Hi, thanks for the reply. I tried following the math from the last paper I quote, but there are some parameters which are hard to get, and the ones I get I am not sure if they can be used for my case either. The flow rate would be determined by the circulating pumps that I can get in my local...

I found out some numbers and equations for submerged copper coils, it seem that the heat transfer lost by conductivity is so negligible that it is possible to reach an approximation just focusing in the water convection outside the pipe. But even that step is not easier. Here is the paper...

Yeah, I explain I bit of this in my previous answer That is why I want to just ask permission to the administration, and then make the installation without call too much attention. In Argentina if you want to go by the Legal path, you would not do nothing in your life, it is a bureaucratic...

The difference in thermal conductivity may help to the flow convection from the lake water over the loop, plus the length and proximity between the hoses (if I want to keep the heat exchanger small enough) would block part of that natural flow. I don't think my neighbors see me with good eyes if...

Thanks for invite your friends to take a look to my question Berkemann! That was really kind. Yes, a portable fan can work very well, I have 2 of those, about ceiling fans, I guess just moving a bit the air could be enough, air is quite chaotic, it mix easily and fans produce a lot of...

Hi, thanks for answer. I was researching this method over long time now, I can't do the math because is quite complicated, it deals with conduction and convection at the same time, then you also need to add the flow speed and thermal mass, but I know the overall mechanic well enough to be sure...

This is a project that I wanted to do in the past 3 years, but I never was sure enough because I don't know how to calculate thermal transfer in a submerged coil to at least have an approximation of what to expect. I want a cheap solution to pass the summer days without cook myself or wasting a...

I am trying to get a formula to estimate the heat lose in an airship. Is a mod for KSP, things that have into account: pressure, wind speed, temperature, air viscosity, thermal capacity of the atmosphere, gravity, etc. There are things that can be ignored as shape (or just use constant...

Is that link a joke?? that is the image of a black hole with more quality than the movie? And they use a supercomputer to obtain a blur picture of 30px * 30px?? One more thing, if they can not share the info from their research, then they need to close their mounth instead to brag without...

Then? where we can see those images? Is like I said, if I have the faster computer in the world, I would be able to make better images of black holes.. But I don't show nothing. About the gif, the only disparity is inside the event horizon, but we don't know how the physsics laws work...

Here it is the image of how the disk warp, but also showing a render without the disk. This is the important discover, now they have a finger print which they can search in the sky. We can see that one side of the black hole seems different that the other one, this is due to the fact that from...

I dint said that it cant, just mention that is not triggering fussion as I read. But about that. Somebody really knows how much energy is radiated depending the distance and time dilation? Or how the process would work? I know that the disk has a lot of area, and radiation depends on the...

But that disk in not in fussion process, is an remainder of a accretion disk in cooling process. It has temperatures close to the sun surface, for that reason its in the visible spectrum without radiation danger.

KenG: you don't need a particular launch window for getting back to the endeavor, miller´s planet rotates a lot faster due to time dilation than the neutron star. The perfect time windows may be every 10 mins or less. Kip Thorne said that he would like to have another black hole to make this...