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On a very still morning, the surface temperature of a lake used to cool the condenser of a power plant is 30°C while the air temperature is 23°C with a relative humidity of 80%. Assume a surroundings temperature of 285 K. The lake is nominally circular in shape with a diameter of approximately 4 km. Determine the heat loss from the surface of the lake by radiation, free convection, and evaporation. This heat loss determines the capacity of the lake to cool the condenser. Justify why the heat transfer correlation you select is useful, even though RaL is outside of its specified range.
.At time zero, the valve is opened; at time t, the valve is closed, and the bulkcontents are analyzed. Explain how this information can be used to calculate thediffusion coefficient in this binary gas mixture.
A recovery of 95% of particles greater than 100 μm is required. The minimum operating temperature will be 10 °C and the maximum 30 °C. Design a hydro cyclone system to handle 1200 liters/min of this slurry.
A client is interested in using a voice-recognition system to access the computer. Which of the following factors is least critical to success with this method?
A three-phase, wye-connected, 2500-kVA, 6600- V, 60-Hz turbo alternator has a per-phase synchronous reactance and an armature resistance of 10.4 and 0.071 Ω, respectively. Compute the power factor for zero voltage regulation on full load.
If this alternator is to generate 60-Hz voltages, find the new synchronous speed, and calculate the new terminal voltage for the same field current.
What is the molar concentration of the ammonia in the liquid at the interface?
Estimate the heat-transfer coefficient for steam condensing on the outside, and on the inside, of a 25 mm o.d., 21 mm i.d. vertical tube 3.66 m long. The steam condensate rate is 0.015 kg/s per tube and condensation takes place at 3 bar
Implications of the future of fabrication for international trade, transportation, and logistics
If 1000 tons/day of wet sugar is fed to the evaporator, how much additional water must be removed from the outlet sugar to dry it completely, and what annual revenue can be expected if dry sugar sells for $0.15/lbm?
the equilibrium constant K for the reaction - what is the concentration of SO3 at equilibrium?
Using as many appropriate anatomical terms as apply, describe the position of the stomach in the body and its position relative to the heart.
If the compressor efficiency is 0.8, what is the power requirement of the compressor and what is the discharge temperature of the propylene?
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