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Problem 6.3:
You are responsible for a high-temperature process that produces two exhaust streams, stream A at 600 °C, 10 bar, with molar flow rate 100 mole/s; and stream B at 200 °C, 20 bar, with molar flow rate 50 mole/s. A young engineer in your team comes to you with an idea to utilize these streams to produce heat and work which will save costs in your process. She quickly puts together a sketch (see below) for a process that produces 220 kW of heat, 1700 kW of work, and delivers the exhaust gases as a single stream at 1 bar. The heat will be used to produce saturated steam at 1 atm by boiling the saturated liquid. a) What is the temperature of the exit stream? b) Should you take this idea to your superiors for further discussions? c) Could you use the heat from this process to boil water at 10 bar? Additional information: Assume the exhaust gases can be treated as an ideal gas with CP = 30 J/mole K.
1. Lab title and number 2. Purpose· Your interpretation of the purpose of the lab. 3. Theory - A brief discussion of the engineering or scientific theory that the lab exercise is based on.
A 50-kW, 250-V, short-shunt compound generator has the following data: Ra = 0.06 Ω, RS = 0.04 Ω, and Rf = 125 Ω. Calculate the induced armature voltage at rated load and terminal voltage. Take 2 V as the total brush-contact drop.
wave-connected. (Note: The number of parallel paths is equal to the number of poles for lap windings, while it is equal to 2 for wave windings.)
Obtain the Thévenin and Norton equivalent circuits for the portion of the circuit to the left of terminals a-b in Figure P2.1.4, and find the current in the 200-Ω resistance.
A pilot state tube is used to measure the velocity of water in a pipe. The stagnation pressure head is 6m and static pressure head is 5m. calculate velocity of flow assuming Cv= .98
The efficiency of a 400-kVA, single-phase, 60-Hz transformer is 98.77% when delivering full-load current at 0.8 power factor, and 99.13% with half rated current at unity power factor.
A liquid containing 60 mol% toluene and 40 mol% benzene is continuously distilled in a single-equilibrium-stage unit at atmospheric pressure. What percent of benzene in the feed leaves in the vapor if 90% of the toluene entering in the feed leaves..
determine the optimum values of x and y involved in Eqs. (92) to (95).
HEAT TRANSFER PROBLEM NO18 - The configuration of a furnace can be approximate as an equilibrium triangular duct which is usually long enough so that the end effects are negligible , the hot wall is maintained at 900 k and has an emissivity e1 = 0..
Why fluids are important in chemical engineering - enormous number of materials normally exist as gases or liquids, or can be transformed into such phase and explain systematic description of change in fluid systems, mechanical change
The resting potential of the membrane is 52 mV at room temperature. Find the Kþ cytoplasm concentration.
100 gallons per minute flow of water at 50 degrees F passes through a theoretically 100% efficient heat exchanger. The hot side or energy to the heat exchanger is a 510 degree F hot gas (essentially steam).
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