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A steam turbine, operating reversibly and adiabatically, takes in superheated steam at 2000 Wa and discharges at 50 kPa.
(a) What is the minimum superheat required so that the exhaust contains no moisture?
(b) What is the power output of the turbine if it operates under these conditions and the steam rate is 5 kg s-1?
The value of the product is $14.08 per pound, and the plant operates 300 days per year. Assuming no costs are involved other than those mentioned, what is the maximum annual profit that can be obtained under these conditions?
You are requested to flash the mixture so that the liquid stream is 85% of the inlet (by mol). If the pressure is 1.5 bar, what temperature should be used?
Find the ratio of the amount refluxed R to the product withdrawn (D).
Monczka-Trent Shipping is the logistics vendor for Handfield Manufacturing Co, in Ohio. Handfield has daily shipments of a power-steering pump from its Ohio plant to an auto assembly line in Alabama.
You are the project manager of a team that has been asked to complete the design of a chemical plant up to the stage of design selection. You have three engineers available (plus yourself) and the work must be completed in ten weeks. Develop a pro..
If the slip-ring voltage is 400 V, when the rotor frequency is 120 Hz, at what speed must the rotor be driven in order to give 150 Hz at the slip-ring terminals? What will the slip ring voltage be in this case?
When delivering rated load a 10-kW, 230-V self-excited shunt generator has an armature-circuit voltage drop that is 6% of the terminal voltage and a shunt-field current equal to 4% of the rated load current Calculate the resistance of the armature..
The composition of a gas derived by the gasification of coal is, volume percentage: carbon dioxide 4, carbon monoxide 16, hydrogen 50, methane 15, ethane 3, benzene 2, balance nitrogen. If the gas is burnt in a furnace with 20% excess air, calcula..
The additional investment required is $1,250,000, and the additional operating costs are negligible. Is the modification worth making?
Determine which of the following 3 material substrates would have the best R-value or lowest thermal conductivity. The purpose is to determine which of the 3 materials would make the best insulator to heat and cold?
The column will operate at 1.1 bar and ambient temperature. If necessary, the aqueous stream may be recirculated to maintain a suitable wetting rate.
A handbook lists the 60-Hz resistance at 50°C of a 900-kcmil aluminum conductor as 0.1185 Ω/mile. If four such conductors are used in parallel to form a line, determine the 60-Hz resistance of this line in Ω/km per phase at 50°C.
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