how much energy is needed to produce steel?
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Energy is given in units of Joules × 109 per metric ton of steel produced. From the data in Table 1 and Fig. 3 it is apparent that the production of hot metal or pig iron is the most energy intensive process for steel production at roughly 13.5 × 109 joules per ton (1000 Kg) of pig iron produced.
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The three raw materials used in making pig iron (which is the raw material needed to make steel) are the processed iron ore, coke (residue left after heating coal in the absence of air, generally containing up to 90% carbon) and limestone (CaCO3) or burnt lime (CaO), which are added to the blast furnace at intervals, ...
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Producing 1 pound of chicken requires 4.4 kWh of energy, or 15013.423172 BTUs.
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Considering the industrial production of hydrogen, and using current best processes for water electrolysis (PEM or alkaline electrolysis) which have an effective electrical efficiency of 70–80%, producing 1 kg of hydrogen (which has a specific energy of 143 MJ/kg) requires 50–55 kW⋅h (180–200 MJ) of electricity.
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High-carbon steel has a carbon content of 0.60– 1.25 wt. % and a manganese content of 0.30 – 0.90 wt. %. It has the highest hardness and toughness of the carbon steels and the lowest ductility.
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The sun releases energy at a mass–energy conversion rate of 4.26 million metric tons per second, which produces the equivalent of 384.6 septillion watts (3.846×1026 W).
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It means that per mole water splitting requires at least 241.8 kJ of energy. Any method(thermal,electrolysis etc) followed, this much of energy will be always required. When using electrolysis, it may be convenient to express it in eV.
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By weight, steel contains about 2.14% carbon. Although that's a relatively small amount of carbon, it results in significant physical changes. Steel, for example, is both harder and stronger than pure iron. ... In comparison, steel is a man-made alloy that's made by mixing iron and carbon together.
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Each solar panel can be expected to produce between 400 and 600 kilowatt-hours per year. The exact electricity production depends on the panel specifications and the amount of sunshine received. Smart design decisions can also improve the productivity of a solar power system.
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Answer and Explanation: Iron is used to make steel, and steel is used in bridges because it is extremely strong and relatively cheap.
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The relationship between Force and Energy is that: E = Force * Distance. If a force (weight, for example) of 1 Newton, is moved, against the direction of the force, by 1 Metre, the work done is i Joule. Additionally, if that 1 Joule of energy is to be expended in 1 second, the power required is 1 Watt.
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Step 1 – Forging the blank Steel bars are heated to a temperature of 900 degrees centigrade. One end of each bar is flattened with a pulsating power hammer to produce a long, thin strip of metal on the end of a cylindrical shank. For more information on the type of metal used, see: What are auger bits made of?
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The standard enthalpy of formation of water is -286kJ/mol. Which means 286kJ of energy is produced when oxygen gas and hydrogen gas reacted to form 1 mole of water. This also means that we need 286 kJ to break water and form H2 and O2. 1kWh = 3600 kJ.
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Research shows it takes 107482.461345 BTUs of energy to produce 1 pound of beef, 42992.984538 BTUs to produce 1 pound of pork, and 15013.423172 BTUs to produce 1 pound of chicken.
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Therefore, the total amount of energy needed is 11722 Joules.
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70% of the steel produced uses coal. Metallurgical coal – or coking coal – is a vital ingredient in the steel making process. ... Steel is an alloy based primarily on iron. As iron occurs only as iron oxides in the earth's crust, the ores must be converted, or 'reduced', using carbon.
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At present, the Earth receives about 1,500 Watts of power per square meter from the Sun. In order to obtain enough power to migrate the Earth in the right amount of time, we'd need to build an array (in space) that collected that entire 4.7 × 1035 Joules of energy, evenly, over a time period of two billion years.