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The HP boiler worked at approx 850 psi (5.86 MPa), and the low-pressure boiler at 200 to 250 psi (1.38 to 1.72 MPa). The UHP and HP boilers were of a water-tube design, while the LP boiler was a fire-tube boiler typical for steam locomotives. The LP cylinders were driven with a mixture of the HP cylinder exhaust and the LP boiler output.
A horsepower-hour (symbol: hp⋅h) is an outdated unit of energy, not used in the International System of Units.The unit represents an amount of work a horse is supposed capable of delivering during an hour (1 horsepower integrated over a time interval of an hour).
The Rolls-Royce Trent 7000 is a high-bypass turbofan engine produced by Rolls-Royce, an iteration of the Trent family exclusively powering the Airbus A330neo. Announced on 14 July 2014, [ 2 ] and first run on 27 November 2015. [ 1 ]
Due to space and weight considerations the latter were one-pass exhausting directly from fire tube to chimney. Another proponent of "strong steam" at that time was the Cornishman, Richard Trevithick. His boilers worked at 40–50 psi (276–345 kPa) and were at first of hemispherical then cylindrical form.
13,200 kilowatts (17,701 hp) 1-hour rating Three sections modification of 2ES10. 4ЭС5К Russian Railways — Novocherkassk Electric Locomotive Plant 2014–present Electric 4×Bo'Bo' 392 tonnes (432 short tons) 1,356 kilonewtons (304,840 lbf) 13,120 kilowatts (17,594 hp) 1-hour rating Four sections modification of E5K. 060-EA
Coal was carried from the tender to the firebox by a Standard Stoker Company type MB automatic stoker that could supply slightly over 12 + 1 ⁄ 2 short tons (25,000 lb) per hour. Water to the boiler was furnished by a Nathan type 4000C Automatic Restarting injector rated for 12,500 gallons per hour on the right side and an Elesco T.P. 502 ...
Direct method of boiler efficiency test is more usable or more common. Boiler efficiency = power out / power in = Q × (Hg − Hf) / (q × GCV) × 100%. where Q, rate of steam flow in kg/h Hg, enthalpy of saturated steam in kcal/kg Hf, enthalpy of feed water in kcal/kg q, rate of fuel use in kg/h
The term tractive effort is often qualified as starting tractive effort, continuous tractive effort and maximum tractive effort.These terms apply to different operating conditions, but are related by common mechanical factors: input torque to the driving wheels, the wheel diameter, coefficient of friction (μ) between the driving wheels and supporting surface, and the weight applied to the ...