-
Posts
23718 -
Joined
-
Days Won
198
Everything posted by SteamyTea
-
My MVHR ...
SteamyTea replied to newhome's topic in Mechanical Ventilation with Heat Recovery (MVHR)
That is a lot dirtier than mine was, mine was just a slightly darker colour. But do yours work when there is a poison attack by the Russians. I don't think my vacuum cleaner filter is that dirty. -
DIY Heat Exchanger
SteamyTea replied to Onoff's topic in Mechanical Ventilation with Heat Recovery (MVHR)
Yes, those ones. -
DIY Heat Exchanger
SteamyTea replied to Onoff's topic in Mechanical Ventilation with Heat Recovery (MVHR)
Yes, a couple of inline Monroe ones. They were dead cheap. -
DIY Heat Exchanger
SteamyTea replied to Onoff's topic in Mechanical Ventilation with Heat Recovery (MVHR)
It is activated by the light and has the usual overrun of a bathroom fan (because it uses two bathroom fans). -
DIY Heat Exchanger
SteamyTea replied to Onoff's topic in Mechanical Ventilation with Heat Recovery (MVHR)
Yes I did, think PVC sheet. I did a bit of rudimentary monitoring and had an efficiency of around 80%, but as this was a bathroom MVHR, so often on for a short time, and then off, the efficiency was all over the place. I keep meaning to get the unit down to show how it was made. Was pretty easy. -
As I understand it, the Allam Cycle engine uses CO2 as mass, then eventually, once it is too cold to be effective, captures it for storage. It does need some method of generating oxygen, so I am sceptical of the efficiency claims, i.e. do they include the oxygen generation and the power used to compress the stored CO2. Most modern diesels capture waste exhaust and recycle it though the engine. This is to help emissions as the SHC of air and exhaust gases are different. Blend them right and there is an advantage (ignoring what VW/Bosch did).
- 64 replies
-
- electricity storage
- battery
- (and 4 more)
-
Just resurrecting this thread. I have just heard about Brave as a browser. It has TOR built in, and I have logged into a site I know my provider has blocked, so seems to work. Couple of screenshots, one of the screen to activate TOR, and one of the memory usage. Bit slow to upload stuff, but that is not unusual when using TOR.
- 84 replies
-
You know those postcards of Cornwall, they were taken on one day in 1976. Fake News was invented here by Newlyn School of Artists. They don't really show rosy cheeked children because they are healthy, scarlet fever more like. The wives looking out to sea on a stormy day is not because it is exciting, it is anguish over lost loved ones. But the sun is out now, and I have some new cycling longes, so going to try them out. That should scare the children.
-
Nor me, not had a TV since 1994. I do watch the Construction Channel sometimes.
- 95 replies
-
- 1
-
-
- stairs
- homemade stairs
-
(and 2 more)
Tagged with:
-
My MVHR ...
SteamyTea replied to newhome's topic in Mechanical Ventilation with Heat Recovery (MVHR)
Would the summer bypass just either push air into the house, or suck it out. If so, then maybe the exhaust has no airflow, but the intake from outside does, or visa versa. I assumes the loft was properly boarded to get to the unit. All PV stuff that was fitted in lofts had to have a pathway and a standing area. I don't understand why newbuilds don't have the loft boarded by default, that way the insulation can be covered over and no one will know it is missing. -
My MVHR ...
SteamyTea replied to newhome's topic in Mechanical Ventilation with Heat Recovery (MVHR)
Why do you want to get to it. Apart from initial setup and changing any filters fitted, they don't need to be looked at. -
Yes, it is quite hard to do in the lab and other carefully set up experiments. There are a few statistical techniques one can employ to tease out the differences, but if the initial premise, or the initial starting conditions are not correct, then the data produces rubbish results.
-
My MVHR ...
SteamyTea replied to newhome's topic in Mechanical Ventilation with Heat Recovery (MVHR)
The technology has not changed any. Some are better than others that is all. Basically warm, moist air is drawn out of the house, the thermal energy is extracted by the heat exchanger to warm up cooler external air that has a lower humidity. Sometimes the outside air is warmer than the internal air, and sometimes the external RH is higher too. That is when the control system earns it keep. So the important part is the control system really. The heat exchanger is in a box with a couple of fans connected to it (usually). -
They grow oranges in Spain, that is on a similar latitude as Nebraska.
