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Search: Posts Made By: osolemio
Forum: Solar Heating 04-27-21, 04:43 AM
Replies: 27
Views: 10,387
Posted By osolemio
Update here is that I am still working on it. Not...

Update here is that I am still working on it. Not many pictures to show just yet.

Right now, part of the focus is on installing ducting in the house, and the pipes for hot water. Since there are 3...
Forum: Conservation 04-27-21, 04:06 AM
Replies: 1
Views: 355
Posted By osolemio
Using (solar) heat for dehumidification and cooling

I am doing an extensive project in Hong Kong, where I will use solar thermal power to dehumidify the humid summer air, then the same heat to cool it off.

Stage 1 is a series of filters, to clean...
Forum: Conservation 04-27-21, 03:59 AM
Replies: 9
Views: 1,437
Posted By osolemio
Great idea with the first-flush system. I am just...

Great idea with the first-flush system. I am just thinking how it will fill up with debris and clogging itself quite quickly? So you would need to open it and clean it quite often (yet much easier...
Forum: Solar Heating 04-27-21, 03:49 AM
Replies: 6
Views: 1,188
Posted By osolemio
Interesting experiments, Jeff. What is the...

Interesting experiments, Jeff.

What is the latitude of your location?

What elevation angle do you plan to install the panels at?

If the panels have any tilt to them, you could consider to...
Forum: Solar Heating 12-30-20, 01:57 PM
Replies: 27
Views: 10,387
Posted By osolemio
3/4" is my favorite for most work, so I agree....

3/4" is my favorite for most work, so I agree. The trick is some times valves, flow meters and such.

There won't be any "rusty water" here, and that is because my systems will be closed. With no...
Forum: Solar Heating 12-27-20, 02:28 AM
Replies: 27
Views: 10,387
Posted By osolemio
I didn't get to it yet. Well, I have started...

I didn't get to it yet. Well, I have started sourcing parts, but an ongoing pandemic has slowed things down a bit, to put it mildly. Also, starting a company in HK is a longwinded process. Just...
Forum: Solar Heating 09-25-20, 03:16 AM
Replies: 13
Views: 2,193
Posted By osolemio
There are advantages and disadvantages to both...

There are advantages and disadvantages to both systems. If drainback is done right, I sincerely believe it will eventually be simpler in construction, more reliable, more failsafe, cheaper to build...
Forum: Solar Heating 09-25-20, 03:10 AM
Replies: 13
Views: 2,193
Posted By osolemio
Thank you for that insight, Jeff5May. I will...

Thank you for that insight, Jeff5May.

I will have more than one sensor inside a manifold (that is, not on the exit, but built into the panels themselves. I will have plenty of user capacity to...
Forum: Solar Heating 09-18-20, 11:13 AM
Replies: 13
Views: 2,193
Posted By osolemio
Yes, of course you are right, SDMCF, I meant...

Yes, of course you are right, SDMCF, I meant horisontal. Where I have installed systems before, people are scared of drainback because there are stories about how pipes or collectors have been...
Forum: Solar Heating 09-16-20, 03:50 AM
Replies: 13
Views: 2,193
Posted By osolemio
Thank you so much for your feedback, SDMCF. ...

Thank you so much for your feedback, SDMCF.

I know about the manifolds being vertical. The issue is if they have a kink in the middle, and leave water standing there. Of it there is any other lock...
Forum: Solar Heating 09-10-20, 06:02 AM
Replies: 13
Views: 2,193
Posted By osolemio
Drain-back system and evacuated tubes

I am researching about drain-back, and how to make the most of it:

Efficiency and simplicity (no heat exchangers, no glycol anti-freeze, no freezing, no boiling, no auto-air-extractors, less lag...
Forum: Solar Heating 09-10-20, 05:45 AM
Replies: 27
Views: 10,387
Posted By osolemio
ESharp, how is it going with your project, all...

ESharp, how is it going with your project, all these years later? Is it still working?

I am researching the drainback principle. Where I have built a few systems, most of every system is a closed...
Forum: Geothermal & Heat Pumps 05-16-20, 01:06 AM
Replies: 1
Views: 1,412
Posted By osolemio
Time Flies

Welcome, osolemio.
You last visited: 04-11-15 at 11:44 AM
Private Messages: Unread 0, Total 1.

-

Can't believe I haven't been on the forums for 5 years!

My main project is still running, a...
Forum: Solar Heating 04-11-15, 05:44 AM
Replies: 7
Views: 3,120
Posted By osolemio
Sorry for all the metric stuff, like C rather...

Sorry for all the metric stuff, like C rather than Fahrenheit :)

This is just before the system is peaking today. Not fully blue sky but pretty strong at almost 900 W/m2 (sensor in the plane of...
Forum: Solar Heating 04-11-15, 01:12 AM
Replies: 7
Views: 3,120
Posted By osolemio
Good news! The underground heat storage was...

Good news!

The underground heat storage was NOT leaking, as we thought previously. It has now been online for about 4 days, and working just great! I might throttle it down a bit, but at the...
Forum: Solar Heating 04-03-15, 12:54 AM
Replies: 7
Views: 3,120
Posted By osolemio
Sure! Before that, I can say that I am...

Sure!

Before that, I can say that I am working on a presentation and information for a crowd funding run on RocketHub. I will announce it here when it launches, and will greatly appreciate your...
Forum: Solar Heating 03-13-15, 12:43 PM
Replies: 7
Views: 3,120
Posted By osolemio
I am happy you ask that question :) The...

I am happy you ask that question :)

The primary circuit is a glycol-water mix, to prevent freezing, secured down to -20 C (-4 F). Despite that I have a function to run to keep it from getting...
Forum: Solar Heating 03-10-15, 01:13 PM
Replies: 7
Views: 3,120
Posted By osolemio
Partly operational: Extensive solar thermal/electric hybrid system

My very extensive solar power project that I have been working on for about 5 years (on and off, as time and money permits), is now partly operational.

Temperatures here are in Centigrade:
...
Forum: Solar Heating 06-22-14, 12:31 PM
Replies: 23
Views: 8,015
Posted By osolemio
Thanks, Jeff, I will run this with my plumber,...

Thanks, Jeff, I will run this with my plumber, see what he says. I didn't get yet exactly how it works yet I can imagine how it must work. I'll make a drawing, step by step, from what you wrote, then...
Forum: Solar Heating 06-22-14, 05:14 AM
Replies: 23
Views: 8,015
Posted By osolemio
The heat exchanger is indoors and should be fine,...

The heat exchanger is indoors and should be fine, but the issue you mention is valid, mainly for the content in the tubes between the panels and the indoor part.

Not very many days a year are...
Forum: Solar Heating 06-22-14, 05:11 AM
Replies: 23
Views: 8,015
Posted By osolemio
Biproduct from sugar, sweet! I see this is a...

Biproduct from sugar, sweet!

I see this is a European product, should make it even better for me. I saw that company also has another product which does boil around 105C, but it's stable up to 150...
Forum: Geothermal & Heat Pumps 06-22-14, 03:53 AM
Replies: 18
Views: 7,661
Posted By osolemio
I hope to (finally) be online during this fall...

I hope to (finally) be online during this fall (of 2014).

For my project, I have been waiting for 4+ years now, to get some special hybrid thermal-electric solar panels from solarus.se - and it...
Forum: Solar Heating 06-20-14, 02:41 PM
Replies: 23
Views: 8,015
Posted By osolemio
I am trying to post a diagram of the setup design...

I am trying to post a diagram of the setup design overview, as it is right now, but it was reduced to quite a small size, so I am trying again, in a different way.

Some text has been cropped in...
Forum: Solar Heating 06-20-14, 02:38 PM
Replies: 23
Views: 8,015
Posted By osolemio
At temperatures below ~25C (77F), there wouldn't...

At temperatures below ~25C (77F), there wouldn't need to be any pumping or heat transfer, just the ability not to break anything, as freezing of water would do. Sludge is fine at 0C, as long as it...
Forum: Solar Heating 06-20-14, 03:39 AM
Replies: 23
Views: 8,015
Posted By osolemio
How about oils like this one? ...

How about oils like this one?

http://s02.static-shell.com/content/dam/shell/static/ind/downloads/lubes-b2b/other-shell-lubricants/heat-transfer-oil.pdf

It seems to be made for the purpose,...
Showing results 1 to 25 of 108

 
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