FUND OF ENGINEERING THERMO W/WILEY PLU
8th Edition
ISBN: 9781119391630
Author: MORAN
Publisher: WILEY
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Chapter 7.7, Problem 37CU
To determine
Whether the statement “to define exergy, we think of two system: a system of interest and an exergy reference environment” is true or false.
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You are asked to design a unit to condense ammonia. The required condensation rate is 0.09kg/s. Saturated ammonia at 30 o C is passed over a vertical plate (10 cm high and 25 cm wide).The properties of ammonia at the saturation temperature of 30°C are hfg = 1144 ́10^3 J/kg andrv = 9.055 kg/m 3 . Use the properties of liquid ammonia at the film temperature of 20°C (Ts =10 o C):Pr = 1.463
rho_l= 610.2 kf/m^3
liquid viscosity= 1.519*10^-4 kg/ ms
kinematic viscosity= 2.489*10^-7 m^2/s
Cpl= 4745 J/kg C
kl=0.4927 W/m Ca)Calculate the surface temperature required to achieve the desired condensation rate of 0.09 kg/s( should be 688 degrees C) b) Show that if you use a bigger vertical plate (2.5 m-wide and 0.8 m-height), the requiredsurface temperature would be now 20 o C. You may use all the properties given as an initialguess. No need to iterate to correct for Tf. c) What if you still want to use small plates because of the space constrains? One way to getaround this problem is to use small…
Using the three moment theorem, how was A2 determined?
Chapter 7 Solutions
FUND OF ENGINEERING THERMO W/WILEY PLU
Ch. 7.7 - Prob. 1ECh. 7.7 - Prob. 2ECh. 7.7 - Prob. 3ECh. 7.7 - 4. A pail of water initially at 20°C freezes when...Ch. 7.7 - Prob. 5ECh. 7.7 - Prob. 6ECh. 7.7 - 7. After a vehicle receives an oil change and lube...Ch. 7.7 - Prob. 8ECh. 7.7 - Prob. 9ECh. 7.7 - Prob. 10E
Ch. 7.7 - 11. How does the concept of exergy destruction...Ch. 7.7 - 12. In terms of energy, how does the flight of a...Ch. 7.7 - Prob. 13ECh. 7.7 - Prob. 14ECh. 7.7 - Match the appropriate definition in the right...Ch. 7.7 - 6. Which of the following statements is false when...Ch. 7.7 -
7. Steam contained in a piston–cylinder assembly...Ch. 7.7 - Prob. 8CUCh. 7.7 - Prob. 9CUCh. 7.7 - Prob. 10CUCh. 7.7 - Prob. 11CUCh. 7.7 - Prob. 12CUCh. 7.7 - Prob. 13CUCh. 7.7 - Prob. 14CUCh. 7.7 -
15. Which of the following statements does not...Ch. 7.7 - Prob. 16CUCh. 7.7 - Prob. 17CUCh. 7.7 - Prob. 18CUCh. 7.7 - Prob. 19CUCh. 7.7 - Prob. 20CUCh. 7.7 - Prob. 21CUCh. 7.7 - Prob. 22CUCh. 7.7 - Prob. 23CUCh. 7.7 - Prob. 24CUCh. 7.7 - Prob. 25CUCh. 7.7 - Prob. 26CUCh. 7.7 - Prob. 27CUCh. 7.7 - Prob. 28CUCh. 7.7 - Prob. 29CUCh. 7.7 - Prob. 30CUCh. 7.7 - 31. Exergy transfer accompanying heat transfer is...Ch. 7.7 - Prob. 32CUCh. 7.7 -
33. The well-to-wheel efficiency compares...Ch. 7.7 - Prob. 34CUCh. 7.7 - Prob. 35CUCh. 7.7 - Prob. 36CUCh. 7.7 - Prob. 37CUCh. 7.7 - Prob. 38CUCh. 7.7 - Prob. 39CUCh. 7.7 - Prob. 40CUCh. 7.7 - Prob. 41CUCh. 7.7 - Prob. 42CUCh. 7.7 - Prob. 43CUCh. 7.7 - 44. When products of combustion are at a...Ch. 7.7 - Prob. 45CUCh. 7.7 - Prob. 46CUCh. 7.7 - Prob. 47CUCh. 7.7 - 48. Mass, volume, energy, entropy, and exergy are...Ch. 7.7 - 49. Exergy destruction is proportional to entropy...Ch. 7.7 - Prob. 50CUCh. 7.7 - Prob. 1PCh. 7.7 - Prob. 2PCh. 7.7 - Prob. 3PCh. 7.7 - Prob. 4PCh. 7.7 - Prob. 5PCh. 7.7 - Prob. 6PCh. 7.7 - Prob. 7PCh. 7.7 -
7.8 When matter flows across the boundary of a...Ch. 7.7 - Prob. 9PCh. 7.7 - Prob. 10PCh. 7.7 - 7.11 A system consists of 2 kg of water at 100°C...Ch. 7.7 -
7.12 A domestic water heater holds 189 L of water...Ch. 7.7 -
7.13 Determine the specific exergy of argon at...Ch. 7.7 - Prob. 14PCh. 7.7 - 7.15 A balloon filled with helium at 20°C, 1 bar...Ch. 7.7 - Prob. 19PCh. 7.7 - Prob. 20PCh. 7.7 - Prob. 21PCh. 7.7 - Prob. 22PCh. 7.7 - Prob. 23PCh. 7.7 - Prob. 24PCh. 7.7 - Prob. 25PCh. 7.7 - Prob. 26PCh. 7.7 - Prob. 27PCh. 7.7 - Prob. 28PCh. 7.7 - Prob. 29PCh. 7.7 - Prob. 30PCh. 7.7 - Prob. 31PCh. 7.7 - Prob. 32PCh. 7.7 - Prob. 33PCh. 7.7 - Prob. 34PCh. 7.7 - Prob. 35PCh. 7.7 - Prob. 36PCh. 7.7 - Prob. 37PCh. 7.7 - Prob. 38PCh. 7.7 - Prob. 39PCh. 7.7 - Prob. 40PCh. 7.7 - Prob. 41PCh. 7.7 - Prob. 42PCh. 7.7 - Prob. 43PCh. 7.7 - Prob. 44PCh. 7.7 - Prob. 45PCh. 7.7 - Prob. 47PCh. 7.7 - Prob. 48PCh. 7.7 - Prob. 49PCh. 7.7 - Prob. 50PCh. 7.7 - Prob. 51PCh. 7.7 -
7.52 Water at 24°C, 1 bar is drawn from a...Ch. 7.7 - Prob. 53PCh. 7.7 - Prob. 54PCh. 7.7 - Prob. 55PCh. 7.7 - Prob. 58PCh. 7.7 - Prob. 59PCh. 7.7 - Prob. 60PCh. 7.7 - 7.61. Steam enters a turbine operating at steady...Ch. 7.7 - Prob. 63PCh. 7.7 - Prob. 64PCh. 7.7 - Prob. 65PCh. 7.7 -
7.66 Air enters a turbine operating at steady...Ch. 7.7 - Prob. 67PCh. 7.7 - Prob. 69PCh. 7.7 - Prob. 74PCh. 7.7 - Prob. 75PCh. 7.7 - Prob. 76PCh. 7.7 - Prob. 77PCh. 7.7 - Prob. 78PCh. 7.7 - Prob. 79PCh. 7.7 -
7.80 Steady-state operating data are shown in...Ch. 7.7 - Prob. 81PCh. 7.7 - Prob. 82PCh. 7.7 - Prob. 83PCh. 7.7 - Prob. 84PCh. 7.7 - Prob. 85PCh. 7.7 -
7.86 A gas turbine operating at steady state is...Ch. 7.7 - Prob. 87PCh. 7.7 - Prob. 88PCh. 7.7 -
7.89 Figure P7.89 shows a gas turbine power plant...Ch. 7.7 - Prob. 90PCh. 7.7 - Prob. 91PCh. 7.7 - Prob. 92PCh. 7.7 - Prob. 93PCh. 7.7 - Prob. 94PCh. 7.7 - Prob. 95PCh. 7.7 - Prob. 96PCh. 7.7 - Prob. 97PCh. 7.7 - Prob. 98PCh. 7.7 - Prob. 99PCh. 7.7 - Prob. 100PCh. 7.7 - Prob. 101PCh. 7.7 - Prob. 102PCh. 7.7 - Prob. 103PCh. 7.7 - Prob. 104PCh. 7.7 - Prob. 105PCh. 7.7 - Prob. 106PCh. 7.7 - Prob. 107PCh. 7.7 - Prob. 108PCh. 7.7 - 7.109 Air enters the insulated duct shown in Fig....Ch. 7.7 - Prob. 110PCh. 7.7 - Prob. 111PCh. 7.7 - Prob. 112PCh. 7.7 - Prob. 113PCh. 7.7 - Prob. 114PCh. 7.7 - Prob. 115PCh. 7.7 - Prob. 118PCh. 7.7 - Prob. 120PCh. 7.7 - Prob. 121PCh. 7.7 - Prob. 122PCh. 7.7 - Prob. 123PCh. 7.7 - Prob. 124PCh. 7.7 - Prob. 125PCh. 7.7 - Prob. 126PCh. 7.7 - Prob. 127PCh. 7.7 - Prob. 128PCh. 7.7 - Prob. 129PCh. 7.7 - Prob. 130PCh. 7.7 - Prob. 131PCh. 7.7 - 7.132 Figure P7.132 shows a cogeneration system...Ch. 7.7 - Prob. 133PCh. 7.7 - Prob. 134PCh. 7.7 - Prob. 135PCh. 7.7 - Prob. 136PCh. 7.7 - Prob. 137PCh. 7.7 - Prob. 138PCh. 7.7 - Prob. 139PCh. 7.7 - Prob. 140PCh. 7.7 - Prob. 141PCh. 7.7 - Prob. 142P
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