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low emissivity
Jen Tafuri
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Are solar panels good or bad?
Solar panels are good for relatively low-power applications where getting a supply from the grid would be costly or difficult. For example, remote buildings, signs, temporary or mobile equipment. In residential applications, however, compared to the cost of electricity from the grid, the power generated by solar panels is not sufficient to pay for the cost of the panels and their installation.
What has Low density and high viscosity?
honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah. honey has high viscosity lah, and water has low viscosity. anything that resists flow has high viscosity...lah.
What are all of the different voice types?
Voice Types- SATBSoprano- High FemaleAlto- Low FemaleTenor- High MaleBass- Low Male
Do gases have low or high density?
Gasses have an incredibly low density, less than a liquid or a solid.
What is the temperature high and low?
low because its not that close to the sun, the temp is low
Is the solar panels high low medium in efficiency?
Low
How does a silver surface work in radiation?
The concept involved here is Emissivity - the ability to emit energy. e is the usual symbol, and a perfect emitter would have an e of 1. Your perfect black body will have this emissivity of 1.A highly polished surface (polished at all the wavelengths concerned) will have an emissivity much smaller. Polished silver has an emissivity of about 0.02.In general the emissivity of a surface is inversely related to its reflectance, but this does vary with the surface finish, colour, and the mass of the object.It is worth noting, that low emissivity glass is used with effect in the double glazing of windows.
Why are the prices of solar panels still so high?
For the panels themselves, it's because they're expensive to make and demand is low. Demand is low partially because solar panels are a pain and costly to install, so people stick with traditional power sources.
What are high tension electrical panels?
High tension electrical panels, also known as high voltage electrical panels, are panels used for distributing and controlling high voltage power in industrial and commercial settings. These panels are designed to handle high levels of electrical energy and are often used in systems such as power generation plants, substations, and large manufacturing facilities. They typically feature robust insulation and safety mechanisms to ensure the safe operation of the high voltage equipment.
between white and silver surfaces, which one is the best emitter of radiation?
The best emitter of radiation depends on the type of radiation you are referring to. Generally, when discussing thermal radiation, a "blackbody" is considered the best emitter. A blackbody is an idealized object that absorbs all incident radiation and emits radiation perfectly according to its temperature. In real-world scenarios, there is a concept called "emissivity," which quantifies how effectively an object emits thermal radiation compared to a blackbody at the same temperature. The emissivity of an object ranges between 0 and 1, with 1 being a perfect blackbody. Regarding white and silver surfaces: White surfaces: White surfaces tend to have high reflectivity and low emissivity. This means they are good at reflecting incoming radiation and do not emit thermal radiation as effectively. In terms of thermal radiation emission, they are not the best emitters. Silver surfaces: Silver surfaces also have high reflectivity but generally have higher emissivity compared to white surfaces. They emit more thermal radiation than white surfaces, but they are still not as effective emitters as a perfect blackbody. In conclusion, between white and silver surfaces, silver surfaces would be the better emitter of thermal radiation due to their higher emissivity. However, neither of them is as efficient as a blackbody emitter. Keep in mind that the exact emissivity values can vary based on the specific properties and conditions of the materials used.
Why heat sinks are black anodized?
Radiative heat transfer (heat transfer by electromagnetic radiation) is proportional to e*(T1^4 - T2^4) where T1 is the absolute temperature of the material, T2 is the absolute temperature of the surroundings, and e is the emissivity coefficient. A black material has a high emissivity coefficient, while a silvery material has a low emissivity coefficient. However, the emissivity coefficient cuts both ways, so to speak. A black material in thermodynamic equilibrium with its environment absorbs more radiation, true. But it also emits more radiation (this is necessary for equilibrium to hold). Likewise, a silvery material absorbs less radiation, and also emits less radiation. Conductive heat transfer ensures that the black material on the surface of the heat sink remains hot. The surroundings are at a lower temperature. Therefore T1 and T2 are set, and the heat transferred from the heat sink to the surroundings is simply proportional to e, the emissivity coefficient.
Does endocytosis go from a high to low or low to high concentration?
Exocytosis goes from high to low concentration.
What are the lyrics to your name is high low piccolo?
my name is hi-low, piccolo, piccalo hi low hi lo piccalo piccalo no name
Does air go from high to low or low to high?
High -> Low
Does wind move from high to low or low to high pressure?
High to Low.
Where is a website you can order restoration parts for your 1974 Dodge Power Wagon?
One webiste that i go to for replacement panels is www.autobodyspecailt.com They are an excellent company that sell high quality parts at low prices.
How do you adjust the up and down headlight position on BA falcon?
There are 2 knobs on each headlight The knob that is higher than the other one which is also pretty much behind you low beam globe adjusts the up and down of the headlight reflector. The other knob behind the high beam must do left and right Same applies for the passenger side, but is reversed, turning the knob away from the engine will make the reflector go up and turning the knob towards the engine will make it go down. The easiest way to tell is if there is alot of thread showing on the knob then the reflector is pointing up wards. If there isnt much thread showing on the knob then the reflector is pointing down.
