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Why does the sun have so many layers,is it because it's to protect the sun or is it to transfer light,heat and energy?

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What is the difference between and what is photovoltiac versus solar energy


Solar energy is the output from our sun though not strictly correct it is sufficient for most purposes to say it is the sun's energy that reaches Earth. It includes a wide spectrum of different frequencies/temperatures of light and energy and various types of particle and electromagnetic radiation, a significant proportion of much of the content is deflected by the Earth's magnetic field and various layers of the atmosphere.

The solar energy reaching the Earth's surface is reckoned to average the warming equivalent of 3kW/hr per square metre.

Photovoltaic (PV) is a process that converts the Sun's heat/light into electricity and should not be confused with the Solar/thermal systems designed to use the sun's heat/light radiation to heat water. Mostly this is used for domestic purposes but some large installations exist where large mirrors concentrate light onto a solar panel with enough heat to produce sufficient steam to drive a turbine/generator to produce electricity.

Photosynthesis, incidentally, is the method plants use to convert atmospheric CO2 into growth using energy from the sun.

Jul 19, 2017 | Renewable Energy

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Solar Air Heating - You Can Cut Utility Costs and Save Money


Solar energy is becoming very quickly recognized as one of the best alternatives to fossil fuels It is an abundant and renewable natural resource. It can be used to save energy in residential, commercial, and industrial settings. Solar technologies will use the sun's energy to provide heat, hot water, light, electricity, and cooling, for homes, businesses, and industry.

Many major advancements have been made in the solar technology fields over the recent years. Solar air heating is becoming more attractive than ever before now that it is becoming lower in cost and more efficient. Solar energy is easily the cleanest and most inexhaustible of any of the known energy sources. The many variations in energy prices have fueled interest in alternative fuels such as solar energy. Demand for solar energy has been increasing exponentially as heating, cooling and many other energy costs continue to skyrocket.

Solar air heating and solar water heating are two examples of solar thermal technologies which produce heat, but not electricity. Solar air heat is best suited for installation in new construction and existing houses. Solar panels for any type of heating should be placed on a south-facing pitched roof, free of shade. The angle should be between 20 and 50 degrees. They may also be mounted on an angled frame on the ground or on a flat roof. Solar air collectors (the devices that heat up the air using solar energy) can directly heat individual rooms. They also can potentially pre-heat the air passing into a heat recovery ventilator or the air of an air-source heat pump. Solar heating panels can be one of the most cost effective ways to reduce your utility bills. This will make a positive contribution towards a better environment. Solar air heating systems often use large bins filled with rocks that store heat (although this method is becoming rare due to problems associated with controlling moisture and mold growth in the rock).

Energy Policy Act has implemented a 30% tax credit for consumers who chose to install solar water heating systems. State and local government programs are now being put in place to encourage the use of solar energy. Cash incentives are available for those that integrate solar energy technology as an alternative energy source. The Department of Energy (DOE) is working to design even more cost-effective solar heating systems and to improve the longevity of the materials used in those systems. Other incentive programs now include offering homeowners tax credits for solar panel installations and for solar heating systems. With solar power you will save money, increase your property value, help protect the environment and help to create a more secure America by reducing our dependence on foreign energy fuel sources.

A great solar heating system will save energy, reduce utility costs, and produce clean energy.

on Dec 12, 2009 | Heating & Cooling

2 Answers

Does wearing black clothing in the sun better than color clothing, i.e. softball??


No. Black will be much warmer than white or a light colour. Black absorbs heat, white reflects it, so it is much cooler to wear white in the sun.

May 09, 2014 | Computers & Internet

1 Answer

How does window insulation film work?


Solar control film (if that's what you are asking about) helps reduce heat transfer through windows. The film absorbs the UV elemnt of the sun's energy while reflecting the infra-red elements.

Feb 05, 2014 | Insulation

1 Answer

Layers of the sun


Here is a link to the FusedWeb site of the Lawrence Livermore National Laboratory that deals with the layers of the Sun.

http://fusedweb.llnl.gov/cpep/chart_pages/5.plasmas/sunlayers.html

Nov 11, 2013 | Clothing Accessories

3 Answers

What's an example of a passive form of solar energy?


Passive solar energy can be used to keep buildings warm. Some buildings have large windows on the side of the building the sun hits. The sun's ray go through the windows and penetrate the heat-absorbent floors and walls. At night, this heat is released into the building.

Jul 23, 2013 | Renewable Energy

1 Answer

How does anti-ballistic body armor work?


When a bullet strikes a body armour panel, the fibres absorb and disperse the energy of the impact across a generalized area. Most concealable body armour is made of a number of layers. These layers assist in the energy dispersion process and help to reduce the effects of blunt trauma, caused by the force of the impacting projectile.

Jan 14, 2013 | Sport & Outdoor - Others

1 Answer

Which layer of the sun is the hottest?and why?


Basic facts
  • Central temperature: 15,000,000 K
  • Surface temperature: 6,000 K
  • Distance from Earth: 150,000,000 kilometers (1 Astronomical Unit)
  • Size: 1,400,000 kilometer diameter
  • Mass: 2 x 10 30 kilograms (300,000 x the Earth's mass)
  • Average density: 1400 kg/m3(1.4 x water)
  • Solar energy reaching Earth: 1400 Watts/m2 (solar constant)
  • Total Luminosity of the Sun
    • equivalent to the energy flow through a sphere surrounding the Sun
    • The surface area of this sphere is 2.8 x 10 23 m2
    • So, the total luminosity is:
      • 1400 Watts/m2 x 2.8 x 10 23 m2
      • = 4 x 10 26 Watts
  • Go to this page to get more information about The sun

Dec 06, 2010 | Mcafee 2009 Internet Security - 3 User...

1 Answer

Hi can u tell features of dell optiplex 780 deskt...


Energy Efficient Design, Environmental Responsibility
With its energy-efficient, environmentally conscious design, the OptiPlex 780 reflects the potential benefits to your operations and your bottom line.

desktop-optiplex-780-usff-overview-block4-small-a.jpg spacer.gif Energy-Conscious Features: The OptiPlex 780 offers Dell Energy Smart power settings and optional high-efficiency power supplies on select configurations. The Dell Client Energy Savings Calculator also lets you estimate energy usage for multiple customized OptiPlex systems.
desktop-optiplex-780-usff-overview-block4-small-b.jpg spacer.gif ENERGY STAR® Compliance: As an ENERGY STAR-compliant partner, Dell has designed select configurations of the OptiPlex 780 to comply with ENERGY STAR 5.0 standards for energy efficiency.
desktop-optiplex-780-usff-overview-block4-small-c.jpg spacer.gif High Environmental Standards: Select configurations of the OptiPlex 780 qualify for an EPEAT® Gold rating. Gold is the highest standard in the Electronic Product Environment Assessment Tool (EPEAT), a set of performance criteria for evaluating electronic products' environmental attributes in both public and private sectors.
spacer.gif Security for Your Business
The OptiPlex 780 gives you the power to choose your level of security, from hardware to software, local or remote. Simply match the security options with your organization's priorities to help keep your critical information protected.
  • Network Protection: Intel® vProTM technology helps to isolate system threats, offering excellent protection for your network infrastructure.
  • Built-in TPM 1.2: Integrated Trusted Platform Module (TPM) 1.21 security provides hardware-level protection of data and passwords.
  • Hard-Disk Security: Secure critical data with optional full-disk-encryption drives or solid-state drives, and choose optional ProSupport4 Certified Data Destruction and ProSupport4 Hard Drive Data Recovery services for additional layers of data security.


May 20, 2010 | Computers & Internet

1 Answer

After receiving the smart heater above ground pool sunheater I found out that it needs 6 hours of sun. The pool is covered by trees therefore no sun. Should I return the heater or will it add at least a...


The panel must have direct sunlight for it to heat. At 6 hours of direct light the 2'x20' panel should "collect" around 40,000 BTUs of sun heat energy. If water is circulated through the collector when sunlight is not warming it, the collector will act like a radiator and you will actually cool the water, so if you run your filter at night be sure to divert the water directly to the return and by passing the collector. So, if the entire area where the collector will be is always in the shade, it will not add a few degrees but actually cool the pool instead.

Jul 08, 2009 | Smartpool Sunheater - Above Ground Pool -...

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