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| E-10 |
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A mixture of 10% ethanol and 90% gasoline based on volume.
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| E-85 |
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A mixture of 85% ethanol and 15% gasoline based on volume.
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| Efficiency |
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The ratio of output to input. Volumetric efficiency of a pump is the actual output in gpm divided by the theoretical or design output. The overall efficiency of a hydraulic system is the output power divided by the input power. Efficiency is usually expressed as a percent.
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| Effluent |
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The liquid or gas discharged from a process or chemical reactor, usually containing residues from that process.
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| Electro-hydraulic servo valve |
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A directional type valve which receives a variable or controlled electrical signal and which controls or meters hydraulic flow.
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| Encoder |
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Device attached to a moving chain that produces an electrical signal each time the chain moves a fixed distance. The encoder is attached to the chain and used to track the movement of the pieces through a scanner.
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| Energy |
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The ability or capacity to do work. Measured in units of work.
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| Energy crops (Bioenergy crops) |
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Are fast-growing crops that are grown for the specific purpose of producing energy (electricity, thermal energy, solid or liquid fuels) from all or part of the resulting plant.
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| Environment |
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The aggregate of physical, chemical and biological factors that act upon an organism or an ecological community and ultimately determine its form and survival.
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| Enzyme |
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A protein or protein-based molecule that speeds up chemical reactions occurring in living things. Enzymes act as catalysts for a single reaction, converting a specific set of reactants into specific products.
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| Error (signal) |
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The signal which is the albraic summation of an input signal and a feedback signal.
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| Ethanol |
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A colorless, flammable liquid produced by fermentation of sugars. Ethanol is used as a fuel oxygenate. Ethanol is the alcohol found in alcoholic beverages.
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| Evaporate |
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Changing water from a liquid to a vapor form.
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| Excess air |
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Refers to the quantity of air supplied that exceeds the minimum necessary to support the combustion chemistry.
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| Externality |
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A cost or benefit not accounted for in the price of goods or services. Often refers to the cost of pollution and other environmental impacts.
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