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How Coal Stoves Work | HowStuffWorks

Types of Coal Stoves If you decide to install a coal stove in your home, you'll be looking at two options. There are batch or hand fired coal stoves and stoker coal stoves. Both of them have advantages and disadvantages.

What is clean coal technology? | HowStuffWorks

One type of coal preparation, coal washing, removes unwanted minerals by mixing crushed coal with a liquid and allowing the impurities to separate and settle. Other systems control the coal burn to minimize emissions of sulfur dioxide, nitrogen oxides and particulates.

Coal - Wikipedia

Coal pollution mitigation, sometimes called clean coal, is a series of systems and technologies that seek to mitigate the health and environmental impact of coal; in particular air pollution from coal-fired power stations, and from coal burnt by heavy industry.

What are the types of coal? - USGS

Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity. In 2019, about 23 percent of.

How Coal Rollers Work | HowStuffWorks

Black carbon emissions, the type spewed out from coal rolling, is one of the most toxic types of airborne contaminants and one of the most influential causes of climate change. The toxins spewed from diesel smoke lead to 21,000 premature deaths every year [source: Kulze].

How Underground Mining Works | HowStuffWorks

Undergrounds coal mines can drive 2,500 feet (750 meters) into the Earth and other types even deeper -- uranium mines can reach 6,500 feet, or 2 kilometers. But those depths are extreme; most top (or bottom) out at about 1,000 feet (300 meters) [sources: Times Wire, ARMZ, Illinois Coal Association].

Top 8 Synthetic Fuels | HowStuffWorks

Synthetic fuel is a category of fuels that includes any fuel "produced from coal, natural gas or biomass feedstocks through chemical conversion" [source: U.S. Energy Information Administration]. These types of fuels are often called Fischer-Tropsch liquids, after the process used to create them.

What is the energy source of the future? | HowStuffWorks

The potential for this technology is vast: Google-funded research reveals that geothermal could generate 10 times the amount of power than that of all of our currently operating coal plants combined. Some predict that geothermal projects will one day produce as much as a sixth of the world's energy.

Top 10 Alternative Fuels on the Road Right Now | HowStuffWorks

In fact, 50 percent of all of the electricity in the United States comes from coal-fired plants [source:]. That means that, when you go all the way down the energy chain, a lot of electric cars are actually coal-powered cars. While coal has similar drawbacks to gasoline, it also has some benefits.

How Firewalking Works | HowStuffWorks

A coal is mostly lightweight carbon atoms and air spaces (it does contain a few other elements, like potassium and calcium -- that's what left behind in the ash). This lightweight carbon structure is a poor conductor of heat. It takes a relatively long time for heat to transfer from the glowing coal to your skin.

How Grills Work | HowStuffWorks

There are several different types of grills, but gas and charcoal are by far the most common. In this article, you will learn about the parts of a grill and how they work together. You'll learn what charcoal is and how it is made, as well as about the differences between liquid-propane (LP) and natural-gas grills.

How Fly Ash Concrete Works | HowStuffWorks

Burning coal is a very dirty process, but modern coal plants have pollution-control equipment that prevents all of the particulate matter from leaving smokestacks. When that equipment is cleaned, we're left with coal ash [source: Dewan]. Because coal power is so widely used, fly ash is one of the most abundant industrial byproducts on Earth.

How Power Grids Work - HowStuffWorks

Single-phase power is what you have in your house. You generally talk about household electrical service as single-phase, 120-volt AC service. If you use an oscilloscope and look at the power found at a normal wall-plate outlet, what you will find is that the power at the wall plate looks like a sine wave, and that wave oscillates between -170 volts and 170 volts.

Quizzes and Trivia | HowStuffWorks

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How Lighthouses Work | HowStuffWorks

Wood fires were the earliest illuminants. As lighthouses proliferated, lamps powered by coal, whale oil, kerosene and other fuels became commonplace. One of the most novel lighthouse inventions, the Fresnel lens, came along in 1822 and used a network of prisms to magnify a small amount of light and cast a beam over distances of 20 miles (32.18 kilometers) or more.

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