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In electronics, a choke is an inductor used to block higher-frequency alternating currents (AC) while passing direct current (DC) and lower-frequency ACs in a circuit. A choke usually consists of a coil of insulated wire often wound on a magnetic core , although some consist of a doughnut-shaped ferrite bead strung on a wire.
Choke valves are important for naturally-aspirated gasoline engines because small droplets of gasoline do not evaporate well within a cold engine. By restricting the flow of air into the throat of the carburetor, the choke valve reduces the pressure inside the throat, which causes a proportionally greater amount of fuel to be pushed from the ...
Ion thrusters in operation typically consume 1–7 kW of power, have exhaust velocities around 20–50 km/s (I sp 2000–5000 s), and possess thrusts of 25–250 mN and a propulsive efficiency 65–80% [3] [4] though experimental versions have achieved 100 kW (130 hp), 5 N (1.1 lb f).
An electrical load is an electrical component or portion of a circuit that consumes (active) electric power, [1] [2] such as electrical appliances and lights inside the home. The term may also refer to the power consumed by a circuit. This is opposed to a power supply source, such as a battery or generator, which provides power. [2]
The commercial version of the T407 was the GLC38 (General Electric/Lycoming Commercial 38), which was unsuccessfully offered for several turboprop airliners in the late 1980s and early 1990s. [ 2 ] The new T408 ( GE38-1B ) is slated to power the new Sikorsky CH-53K King Stallion three-engined helicopter for the US Marine Corps.
NRG Dynamix of the U.S.A. claimed its approach reduced cost by one-third compared with electric hybrids and added only 300 lbs (136 kg) to vehicle weight vs. 1,000 lbs (454 kg) for electric hybrids. The company claimed a standard pickup vehicle powered by a 2.3-litre, 4-cylinder engine achieved 14 mpg (16.8 L/100 km) in city driving.
Financial firm Lazard also updated its levelized cost of electricity report costing new nuclear at between $0.118/kWh and $0.192/kWh using a commercial 7.7% cost of capital (WACC - pre-tax 12% cost for the higher-risk 40% equity finance and 8% cost for the 60% loan finance) over a 40-year lifetime.
20–30 million [11] [12] 1850–1864 Qing Dynasty vs. Taiping Heavenly Kingdom: China World War I: 15–30 million [13] [14] 1914–1918 Allied Powers vs. Central Powers: Global Manchu Conquest of China: 25 million [15] [16] 1618–1683 Manchu vs. Ming Dynasty: China Conquests of Timur: 7–20 million [9] 1369–1405 Timurid Empire vs. various ...