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On Sunday, 16 July 2023 at 15:06:39 UTC+2, Fred Bloggs wrote:
On Sunday, July 16, 2023 at 8:17:33â¯AM UTC-4, Carlos E.R. wrote:
On 2023-07-16 00:24, Fred Bloggs wrote:
On Saturday, July 15, 2023 at 4:09:05â¯PM UTC-4, upsid...@downunder.com wrote:
On Sat, 15 Jul 2023 08:26:20 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:
A nice trick for a single floor building is to install fixed blinds
2-3 meters outside from the building. The blinds do not start from the
ground but just over 2 m from ground, extending to 4 or 5 meters above
ground. When the sun is high up, it is blocked by the blinds but you
have an undisturbed horizontal view through the window. On the
outside, you can also walk under the blinds (which starts above 2 m).
You shouldn\'t have a problem with sun during summer. It is in effect directly overhead for the hottest part of the day, so it doesn\'t come thru the window.
It certainly does. It burns here from 11 (9 UTC) to 17 (15 UTC), at least.
Are you saying the sun directly shines into the windows at that hour? Your windows must be on a slant, or you\'re confusing it with an ultrabright background full of reflection.
https://www.energy.gov/energysaver/energy-efficient-window-coverings
The modern energy efficient windows have a transparent metal film in them that totally blocks UVA/B radiation, and that technology works very well to prevent heating and damage from that part of the spectrum..
None of the sun blocking performance is to be confused with the basic thermal conductivity/ resistivity of the window. That has to do with heat leakage by conduction and is an entirely different matter.
The modern variable speed a/c technology should be controlled in such a way that it only runs high speed continuously when the measured temperature exceeds the setpoint by about 3oF, otherwise if runs at less capacity. An extended high capacity run means it\'s either trying to catch up with an extended setback, or the capacity can\'t keep up with the heat gain from the record outside temperatures.
\"The modern energy efficient windows have a transparent metal film in them
you are completely wrong as always
what is offered is so-called venetian mirror installed as window glass
On Sun, 16 Jul 2023 06:06:32 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:
The modern energy efficient windows have a transparent metal film in them that totally blocks UVA/B radiation, and that technology works very well to prevent heating and damage from that part of the spectrum..
They also block UHF/microwave signals and it can be hard to use
cellular phones indoors.
On Sunday, July 16, 2023 at 4:05:49â¯PM UTC-4, a a wrote:
On Sunday, 16 July 2023 at 15:06:39 UTC+2, Fred Bloggs wrote:
On Sunday, July 16, 2023 at 8:17:33â¯AM UTC-4, Carlos E.R. wrote:
On 2023-07-16 00:24, Fred Bloggs wrote:
On Saturday, July 15, 2023 at 4:09:05â¯PM UTC-4, upsid...@downunder.com wrote:
On Sat, 15 Jul 2023 08:26:20 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:
A nice trick for a single floor building is to install fixed blinds
2-3 meters outside from the building. The blinds do not start from the
ground but just over 2 m from ground, extending to 4 or 5 meters above
ground. When the sun is high up, it is blocked by the blinds but you
have an undisturbed horizontal view through the window. On the
outside, you can also walk under the blinds (which starts above 2 m).
You shouldn\'t have a problem with sun during summer. It is in effect directly overhead for the hottest part of the day, so it doesn\'t come thru the window.
It certainly does. It burns here from 11 (9 UTC) to 17 (15 UTC), at least.
Are you saying the sun directly shines into the windows at that hour? Your windows must be on a slant, or you\'re confusing it with an ultrabright background full of reflection.
https://www.energy.gov/energysaver/energy-efficient-window-coverings
The modern energy efficient windows have a transparent metal film in them that totally blocks UVA/B radiation, and that technology works very well to prevent heating and damage from that part of the spectrum..
None of the sun blocking performance is to be confused with the basic thermal conductivity/ resistivity of the window. That has to do with heat leakage by conduction and is an entirely different matter.
The modern variable speed a/c technology should be controlled in such a way that it only runs high speed continuously when the measured temperature exceeds the setpoint by about 3oF, otherwise if runs at less capacity. An extended high capacity run means it\'s either trying to catch up with an extended setback, or the capacity can\'t keep up with the heat gain from the record outside temperatures.
\"The modern energy efficient windows have a transparent metal film in them
you are completely wrong as always
what is offered is so-called venetian mirror installed as window glass
LOL- there\'s an industry pushing trillion dollar annual that disagrees with your assertion.
On Monday, July 17, 2023 at 6:08:44â¯AM UTC-4, upsid...@downunder.com wrote:
On Sun, 16 Jul 2023 06:06:32 -0700 (PDT), Fred Bloggs
bloggs.fred...@gmail.com> wrote:
The modern energy efficient windows have a transparent metal film in them that totally blocks UVA/B radiation, and that technology works very well to prevent heating and damage from that part of the spectrum..
They also block UHF/microwave signals and it can be hard to use
cellular phones indoors.
In U.S. window area on average runs 10% of the floor space. It\'s uncanny how uniform that is. People beat it with sun rooms, picture windows and other unnecessary stuff. For the most part there\'re no reports of loss of cell phone reception in the majority of dwellings.
Heat capacity of the Earth is minuscule compared to the solar energy impinging on it.
The heat inflow from the sun is 4.4x 10^16 watts. I can\'t find a heat capacity for the planet as a whole.
https://iopscience.iop.org/article/10.1088/0004-637X/757/1/80
Bill Sloman, Sydney
On Sunday, July 16, 2023 at 1:00:38â¯AM UTC-4, Anthony William Sloman wrote:
.
Heat capacity of the Earth is minuscule compared to the solar energy impinging on it.
The heat inflow from the sun is 4.4x 10^16 watts. I can\'t find a heat capacity for the planet as a whole.