# Tag Info

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Any high slew rate (fast rate of change of power) stresses the grid. Lots of things cause high slew rates. People getting ready for work in the morning, having showers, turning lights and appliances on. Factories starting up at the same time. Faults on major international HVDC transmission lines. Safety shutdowns at nuclear reactors. Lots of people turning ...

5

Sound could be considered a renewable resource if taken from a source that was created by continual physical processes - such as the sound of waves crashing against rocks. Although those sound waves contain energy (which is the kinetic energy of moving/vibrating air particles), their energy density is very low. Therefore they are not useful for generating ...

4

I think you might be a little confused. The phrases 'renewable energy' and 'un-renewable energy' are used to refer to industrial sources of energy. These industrial sources include Wind, Solar, Wave, and Nuclear power, and traditional fossil fuels (coal, oil, natural gas etc.). If a source of power is renewable, it is not depleted (used up) when utilised ...

4

I didn't read every word but I'll address what I believe are three of the most important parts of the patent. (1) One of the ideas for reducing radiative heat loss is reasonable In solar thermal systems, the hot object can lose heat by emitting IR thermal radiation, and you want to stop that process. This is a big field but the approach most people use is ...

3

Is it possible to generate energy using gravity? Yes and no. It depends what you mean by generate. What gravity does, is convert energy from one form to another. When you lift a bucket of water you do work on it. You add energy to it - we call it potential energy. Then when you upend the bucket, the water pours out, and gravity converts potential energy ...

2

The power generated by wind turbine goes approximately like $P={1\over 2}C_p\rho A v^3$ Where $\rho$ is the density of air, $A=\pi r^2$ is the area swept by the blades, $v$ is the velocity of the wind and $C_p$ is a power conversion factor that is around 0.3-0.4 for the best wind turbine designs and will probably be on the order of 0.1 for your rotor. ...

2

Most utility-scale (large-scale, the thing you've referred to as "government") generation is photovoltaic. Photovoltaics work on any scale, from watts to gigawatts. Whereas concentrating solar thermal generation needs to get a mass of fluid up to hundreds of degrees celsius, in order to drive a turbine. It's absurdly inefficient (in energy terms and ...

1

We don't harvest waste artificial light, because it would be ridiculously expensive to do so. The energy in sunlight is, at full sun, $1000W/m^2$. That's way higher than any artificial light in normal circumstances. So it's far more economic to position solar panels to optimise collection of daylight, rather than to capture artificial light at night. Any ...

1

Yes, it "Is possible to generate energy from gravity". Gravity affects the orbit of the moon. The moon affects the level of tide waters. The movement & mass of tide waters can be captured & converted into electrical energy using energy harvesting technologies. e.g.: https://www.youtube.com/watch?v=7jsOerwz4Z8

1

The answer to this question is very much analogous to the answer to how aeroplanes fly. See Physics SE Question "What Really Allows Airplanes to Fly?" and the best (IMO) answer is this one here. But basically the airfoils, sails or vanes - whatever they may be called - deflect the flow of air. They do this by pushing on the air and changing the latter's ...

1

First, it's not only drag that slows down the air, every force has to be matched by an equal and opposite force including lift. Second, friction is not the sole cause of drag, indeed there's drag on an airfoil in an inviscid fluid due to pressure. So why we need sophisticated airfoil design when traditional windmills can work and how modern wind turbines ...

1

Magnetic fields only deflect ions and only if the ions are moving through the magnetic field. You'd need something different or more complex to attract ions. Also your "resultant positively charged collecting mass" would repel the positive ions you are trying to collect.

1

I'm going to just ignore all the details of your the mechanics you suggest/propose in your description and just focus on your main question in the title - because 'how' you might do it is better addressed in an engineering forum. And from a pure physical perspective the answer is - it depends. It really depends on how much energy you have available from ...

1

Solar panels work with sunlight. The energy per square meter of light from the sun , depending on the geographic area etc is of order of 8 hour summer day, 40 degree latitude 600 Watts per sq. meter In one hour a photovoltaic cell of one square meter will provide energy of 600 watthours Take a light bulb of 100 Watthour . To gather all that ...

1

Ok, I've got some experience with both solar thermal applications and PV panels. The answer to this question cannot be simple because it involves a wide range of variables. First of all, when comparing such technologies you have to keep in mind that the potential of any solar application depends on the region where it is installed. For example, CSP ...

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