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Search: Posts Made By: Piwoslaw
Forum: Energy Storage 10-22-23, 04:37 PM
Replies: 34
Views: 123,579
Posted By Solar Mike
Makes you wonder how long a heat trap is...

Makes you wonder how long a heat trap is required, perhaps duplicate what you have and place two next to each other; or add another flapper check valve in the cold line entry into the tank.

Simple...
Forum: Appliances & Gadgets 08-04-22, 06:04 AM
Replies: 2
Views: 36,010
Posted By dremd
If the voltage is that low and it’s been sitting,...

If the voltage is that low and it’s been sitting, I’d say it’s done and ready for recycling without further test. If you want to test it charge it up and discharge slowly (say1/2 amp rate) and...
Forum: Appliances & Gadgets 07-31-22, 10:57 AM
Replies: 2
Views: 36,010
Posted By NiHaoMike
Those little sealed lead acid batteries usually...

Those little sealed lead acid batteries usually don't last long even in the best of conditions, they're built to be cheap. Not to mention largely obsolete when lithium batteries are cheaper nowadays....
Forum: Geothermal & Heat Pumps 07-27-22, 03:38 PM
Replies: 1,943
Views: 3,656,026
Posted By AC_Hacker
MILESTONE - Homemade Heatpump Manifesto breaks 2 million hits

I want to take a moment to recognize that the Homemade Heat Pump Manifesto has gone beyond 2 million page views. I would like to thank Daox and any other people who may have worked behind the scene...
Forum: Geothermal & Heat Pumps 04-05-22, 08:25 PM
Replies: 11
Views: 23,100
Posted By JRMichler
This is correct. To put some numbers on that 100...

This is correct. To put some numbers on that 100 CFM, the Ingersoll Rand RS18i air compressor is rated 113 CFM at 110 PSIG. It has a 25 hp (18.65 kW) motor.

That's 18.65 kW of power to get 1.8...
Forum: Energy Storage 03-10-22, 07:29 PM
Replies: 34
Views: 123,579
Posted By JRMichler
A simple check valve has a metal disk. The...

A simple check valve has a metal disk. The weight of that disk is probably enough to stop convection flow. I suggest just adding a check valve after the pump. I would not use a check valve with a...
Forum: Geothermal & Heat Pumps 01-27-22, 11:13 AM
Replies: 10
Views: 16,046
Posted By YuriyLogvin
Episode 1 - Introduction. In this episode I...

Episode 1 - Introduction.

In this episode I do a quick introduction to the DIY Geothermal Heat Pump project.

https://www.youtube.com/watch?v=FR4eW30ZMKY

Episode 2 - Building geothermal loop....
Forum: Geothermal & Heat Pumps 01-03-22, 10:04 AM
Replies: 16
Views: 21,526
Posted By Robl
I've just about finished my ground-source...

I've just about finished my ground-source heatpump project, it's installed and been running well for the last 3 weeks here - it provides all the heating for our house now, and the gas boiler has been...
Forum: Solar Heating 12-19-21, 04:28 PM
Replies: 5
Views: 8,078
Posted By Sparky!
Project update

Yesterday I picked up my tank. It was brand new old stock. It is 1600 gallons with its length around 10'. It was made to be used horizontally but I will be standing it up on end. There are so many...
Forum: Geothermal & Heat Pumps 09-10-21, 05:57 AM
Replies: 16
Views: 21,526
Posted By Robl
I finished the heatpump build, pressure tested...

I finished the heatpump build, pressure tested with CO2, vacuumed it & filled it with propane, then turned on the heatpump for the first time yesterday!
I charged it with the pump on, aiming for...
Forum: Conservation 07-26-21, 08:17 AM
Replies: 575
Views: 1,133,357
Posted By Robl
Continuing describing the system we have, in case...

Continuing describing the system we have, in case it's helpful:
It's a Vent Axia Sentinel Kinetic Plus BH unit, which was the biggest I could fit through the loft hatch. Bigger meaning it runs...
Forum: Other Improvements 01-31-21, 05:10 AM
Replies: 18
Views: 15,665
Posted By IamIan
Ian's Thermal System

I am a turtle (slow progress) .. because I'm a tinkerer who gets more out of the tinkering itself than the functional finished product .. and because I have soo many tikering projects to compete for...
Forum: Geothermal & Heat Pumps 01-03-21, 08:35 AM
Replies: 0
Views: 3,890
Posted By Zwerius
How our energy system performed over 2020

I thought you might like this:


https://i.postimg.cc/PxWWmj8s/sankeymatic-2300x1200-2020-English.png



For all details, you can take a look at my website.
It's in Dutch, but Google...
Forum: Geothermal & Heat Pumps 12-30-20, 01:55 PM
Replies: 3
Views: 4,860
Posted By jeff5may
So with an understanding of the overall heat pump...

So with an understanding of the overall heat pump refrigeration cycle, I will focus on the geothermal/ground source end of the system.

With a ground loop based system, the two main things that...
Forum: Geothermal & Heat Pumps 11-01-20, 02:32 PM
Replies: 7
Views: 6,354
Posted By Acuario
It's all diy - the controller and installation...

It's all diy - the controller and installation anyway. The heatpump itself is a basic compressor/fan/reversing valve unit that I have added my own controller and control software to.

I describe it...
Forum: Solar Power 10-26-20, 05:07 PM
Replies: 2
Views: 5,057
Posted By mk1st
Finally up and running

I rebuilt my old crappy garage and reoriented the new one for full southern exposure. Took a while to get everything up and running because I was doing everything myself (except the final wiring...
Forum: Solar Heating 10-20-20, 08:07 AM
Replies: 128
Views: 104,028
Posted By Daox
Alright, lets fast forward 8 years! I basically...

Alright, lets fast forward 8 years! I basically haven't done anything with this project. So, this is what the solar panel rack looked like earlier this week:
...
Forum: Conservation 07-08-20, 09:15 AM
Replies: 33
Views: 50,412
Posted By Wanna Beco
Does it make SENSE, to monitor your homes energy.

I did it! I finally purchased a Sense energy monitor. Some of you know I just installed a new AC unit. I also had that home efficiency audit. The audit is sponsored by the power company, and it is 99...
Forum: Solar Power 07-03-20, 09:24 AM
Replies: 2
Views: 5,935
Posted By CrankyDoug
Perhaps I am missing something. You have solar...

Perhaps I am missing something. You have solar panels facing in two directions, mounted to a single pole such that a 5mph wind will result in rotational oscillation from vortex shedding. I estimate...
Forum: Geothermal & Heat Pumps 06-30-20, 02:05 AM
Replies: 15
Views: 12,883
Posted By jeff5may
Yes, ventilation will help carry away waste heat....

Yes, ventilation will help carry away waste heat. Not a huge amount, but yes it will be helpful.

The most effective thing you can do to increase cooling is to mist the outdoor unit heat exchanger....
Forum: Appliances & Gadgets 10-09-19, 05:12 PM
Replies: 2
Views: 6,966
Posted By Daox
I also posted this on EcoModder. Someone...

I also posted this on EcoModder. Someone mentioned that larger cells are easier to work with. So, I posted what I found as far as making smaller cells such as teh 18650 into larger packs.

There...
Forum: Geothermal & Heat Pumps 06-22-18, 04:08 PM
Replies: 17
Views: 11,286
Posted By oil pan 4
evaporative cooling for A/C condenser test with garden hose study

The scope is to determine if evaporative cooling can boost home A/C efficiency.
Instruments used:
Flir i7 thermal imager
Fluke325 amp clamp

Control over Observations:
Gave the A/C unit a 10...
Forum: The Billiards Room 04-16-18, 06:35 PM
Replies: 0
Views: 4,993
Posted By creeky
Ready for the Silent Spring?

As the son of a biologist and a determined nature lover I have been watching the plight of the bees with some concern. Now it looks like the bees are the least of our problem.

You see, coinciding...
Forum: The Billiards Room 04-13-18, 01:16 PM
Replies: 3
Views: 7,063
Posted By claudioa
Smile I'm developing a strategy video game where you operate the Electric Power Grid

Hello, I am a self-taught game developer and student of Energy and Environment (Master Degree).

I dreamed about this game a long time ago and have been developing it since, learning the craft...
Forum: Geothermal & Heat Pumps 01-03-18, 07:20 AM
Replies: 5
Views: 4,602
Posted By randen
Solar augmented mini split

Impressive build. Have a peek:

https://m.youtube.com/watch?v=dmckigvz7Hg


Randen
Showing results 1 to 25 of 187

 
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