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1. 06:06 PM - Re: Re: Battery (Robert L. Nuckolls, III)
2. 09:39 PM - Which is better for laminated glass and insulating glass? (ahwhglass)
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At 07:44 PM 1/21/2019, you wrote:
>I learned today from EarthX that they are ok with using a small
>solar charger to charge their batteries, as long as it will NEVER
>exceed 14.6 volts. Their emphasis, not mine.They also stated that
>many solar units commonly are 15 volts or more and therefore not to
>be used with their batteries.
Virtually ALL solar arrays offered to charge
12v batteries will have a full-sun, open-circuit
voltage in excess of 16 volts.
The 'small' arrays also have a rather large
internal impedance . . . meaning that the
output voltage falls off as load is increased.
But as any battery being charged with a 'barefoot'
solar array achieves full charge, flow of current
into the battery is not moderated.
The short story is that any solar array
being considered needs to have a significant
current capability . . . the wall-wart maintainers
are good for about 0.8A and WILL eventually
top off a rather large battery.
But to deliver 0.8A under marginal sun-light
conditions, the full-sun capability needs to
be 2x to 3x that amount . . . say 2.5A at
14 volts or about 35 watts.
Those cute little solar panels with cigar
lighter plugs are good for about 1-2 watts
and will MAINTAIN a fully charged battery.
But it takes a more robust device to serve
as replacement for the ship's engine driven
power source . . . i.e. top off a partially
discharged battery while hangared.
The more robust arrays need some form of
electronics to keep their full-sun performance
from beating up an already full-charge battery.
Bob . . .
Message 2
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| Subject: | Which is better for laminated glass and insulating |
glass?
Which is better for laminated glass and insulating glass?
INSULATING glass was invented simply by Americans in 1865. This is the new building material together with good heat insulation, noise insulation, beautiful appearance in addition to reduced building weight. That uses two (or three) eyeglasses. The high-strength and high-air-tight composite adhesive can be used to bond the glass piece towards aluminum alloy frame containing the desiccant to offer a high-performance sound insulation and insulating glass. fire resistant glass supplier (https://www.ahwhglass.com/Specialties/Fire-resistantglass/)
Laminated glass is additionally called laminated glass. It is just a two-piece
or several float glass sandwich to difficult PVB (ethylene polymer butyrate) film,
which is pressed with a hot press and discharged regularly, and then placed
in the high-pressure steam kettle utilizing high temperature and underhand.
A small amount regarding residual air is dissolved inside film. Compared with
additional glass, it has the particular performance of shockproof, anti-theft,
bulletproof and explosion-proof.
First of all, the laminated glass and the insulating glass have the sound insulation
effect to some extent. However, laminated glass has excellent shock challenge
and explosion-proof performance, whilst insulating glass has much better
thermal insulation.
In words of sound insulation, you will find different differences between both
the. Because of the great seismic performance of laminated cup, when the wind
is definitely large, the possibility of noise brought on by self-vibration is
small, specifically for medium and low frequencies. Insulating glass is at risk
from resonance.
But to say that it is isolated from additional noise, it is still a slight advantage.
For that reason, depending on the location, the glass to be chosen is different.
If it is common household, insulating glass may be the most widely chosen. In the
event you live in the higher level, the wind is big, and the noise is relatively
small when compared to outside world. Laminated glass is also your best
option.
The most direct manifestation on the two types of glass is the sun room. Typically,
the top of the sun room consists of double-layer tempered glass. The facade
glass on the sun room uses insulating glass.
Because if a person encounter high-altitude falling things, the safety of laminated
tumbler is relatively high in fact it is not easy to absolutely break. The
faade a glass uses insulating glass to better achieve thermal insulation, so
that the sunshine room is warm throughout winter and cool with summer.
Therefore, it cannot be said that double-layer laminated tumbler and double-layer
insulating goblet are better, and it might only be said how the demand in which
point is greater.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=487191#487191
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