H.W3:Drive the temperature distribution and heat flow for with uniform heat generation in anuclear fuel tube when heat is transferred from inner and outer surface of the tube.

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Answered: H.W3: Drive the temperature…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.39P

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Hi I need asisstance with a thermo review problem, Thank you! A heat exchanger is used to heat air. The air enters at 300 K with a flow rate of 5 kg/s. The air is heated by a separate stream of H2O that enters the heat exchanger at 300 kPa, saturated vapor and leaves as saturated liquid. If the H2O flow rate is 0.2 kg/s, determine the exit temperature of the air (K). Cpair=1.027 kJ/kgK. Note the air and H2O areseparate streams. No mixing occurs.
A water tube boiler produces 250,000 pounds of steam per hour at 1200 psia and1000OF from feed water entering the boiler at 1500 psia and 360oF. Fuel oil havinga higher heating value of 18,200 Btu/lb is supplied to the burners at the rate of20,700 lb/hr. Furnace volume is 1500 cubic feet. Calculate the equivalentevaporation, lb/hrA. 300,117 B. 300,317 C. 300,517 D. 300,717
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A refrigerant 22 vapor compression system includes a liquid-to-suction heat exchanger in the system. The heat exchanger warms saturated vapor coming from the evaporator from -10 to 5 with a liquid which comes from the condenser at 30. The compressions are isentropic in both cases listed below.a. Calculate the coefficient of performance of the system without the heat exchanger but with a condensing temperature at 30 and an evaporating temperature of -10b. Calculate the COP of the system with the heat exchangerc. If the compressor is capable of pumping 12.0 L/s measured at the compressor suction, what is he refrigeration capacity of the system without the heat exchanger?d. With the same compressor capacity as in (c), what is the refrigeration capacity of the system with the heat exchanger?
A distillation column with a total condenser and a partial reboiler is separating ethanol andwater at 1.0 atm. Feed is 0.32 mol fraction ethanol and it enters as a saturated liquid at 100mol/s on the optimum plate. The distillate product is a saturated liquid with 80 mol% ethanol.The condenser removes 5615 kW. The bottoms product is 0.05 mol fraction ethanol. AssumeCMO is valid.(a) Find the number of equilibrium stages for this separation. [6 + PR](b) Find how much larger the actual reflux ratio, R, used is than Rmin, i.e. R/Rmin. [3]Note: the heats of vaporization of ethanol and water are λe = 38.58 ௞௃௠௢௟ and λw = 40.645 ௞௃௠௢௟
A distillation column with a total condenser and a partial reboiler is separating ethanol andwater at 1.0 atm. Feed is 0.32 mol fraction ethanol and it enters as a saturated liquid at 100mol/s on the optimum plate. The distillate product is a saturated liquid with 80 mol% ethanol.The condenser removes 5615 kW. The bottoms product is 0.05 mol fraction ethanol. AssumeCMO is valid.(a) Find the number of equilibrium stages for this separation. [6 + PR](b) Find how much larger the actual reflux ratio, R, used is than Rmin, i.e. R/Rmin. [3]Note: the heats of vaporization of ethanol and water are λe = 38.58 ௞௃௠௢௟ and λw = 40.645 ௞௃௠௢௟

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