Fundamentals of Engineering Thermodynamics, Binder Ready Version
8th Edition
ISBN: 9781118820445
Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
Publisher: WILEY
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Chapter 7.7, Problem 14P
(a)
To determine
The specific exergy of saturated liquid Refrigerant-134a at
(b)
To determine
The specific exergy of saturated liquid Refrigerant-134a at
(c)
To determine
The specific exergy of saturated liquid Refrigerant-134a at temperature
(d)
To determine
The specific exergy of saturated liquid Refrigerant-134a at temperature
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Students have asked these similar questions
A counter flow double pipe heat exchanger is being used to cool hot oil from 320°F to 285°F
using cold water. The water, which flows through the inner tube, enters the heat exchanger at 70°F
and leaves at 175°F. The inner tube is ¾-std type L copper. The overall heat transfer coefficient
based on the outside diameter of the inner tube is 140 Btu/hr-ft2-°F. Design conditions call for a
total heat transfer duty (heat transfer rate between the two fluids) of 20,000 Btu/hr. Determine the
required length of this heat exchanger (ft).
!
Required information
A one-shell-pass and eight-tube-passes heat exchanger is used to heat glycerin (cp=0.60 Btu/lbm.°F) from 80°F to 140°F
by hot water (Cp = 1.0 Btu/lbm-°F) that enters the thin-walled 0.5-in-diameter tubes at 175°F and leaves at 120°F. The total
length of the tubes in the heat exchanger is 400 ft. The convection heat transfer coefficient is 4 Btu/h-ft²°F on the glycerin
(shell) side and 70 Btu/h-ft²°F on the water (tube) side.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Determine the rate of heat transfer in the heat exchanger before any fouling occurs.
Correction factor F
1.0
10
0.9
0.8
R=4.0 3.0 2.0.15 1.0 0.8.0.6 0.4 0.2
0.7
0.6
R=
T1-T2
12-11
0.5
12-11
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
(a) One-shell pass and 2, 4, 6, etc. (any multiple of 2), tube passes
P=
T₁-11
The rate of heat transfer in the heat exchanger is
Btu/h.
!
Required information
Air at 25°C (cp=1006 J/kg.K) is to be heated to 58°C by hot oil at 80°C (cp = 2150 J/kg.K) in a cross-flow heat exchanger
with air mixed and oil unmixed. The product of heat transfer surface area and the overall heat transfer coefficient is 750
W/K and the mass flow rate of air is twice that of oil.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Air
Oil
80°C
Determine the effectiveness of the heat exchanger.
Chapter 7 Solutions
Fundamentals of Engineering Thermodynamics, Binder Ready Version
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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