Using the table TABLE B.6 Properties of Saturated Steam: Pressure TableV(m³/kg)Û (kJ/kg)Ĥ (kJ/kg)P(bar)T(°C)WaterSteamWaterSteamWaterEvaporationSteam0.0010000.0010002375.62380.7+0.015.80.006112501.60.013.8206.2159.7zero2501.60.00815.82492.62508.52485.02478.72473.20.0107.00.001000129.22385.22514.429.340.650.329.30.0129.70.001000108.72388.940.62519.312.093.92392.02394.82397.40.0140.00100050.32523.50.0160.01814.00.00100182.858.958.92468.42527.315.90.00100174.066.566.52464.12530.60.0200.0220.0240.02617.50.00100167.073.52399.62401.72403.673.52460.22533.661.256.419.00.00100279.879.82456.62536.420.40.00100285.785.72453.32539.021.70.00100252.391.12405.491.12450.22541.30.02823.00.00100248.796.22407.196.22447.32543.60.0300.0350.001003101.0111.82408.62412.22415.3101.0111.82545.62550.424.145.72444.639.52438.52433.126.70.0010030.04029.00.00100434.8121.4121.42554.50.0450.050130.0137.82428.22423.831.00.00100531.1130.02418.12558.232.90.00100528.2137.82420.62561.60.0600.0700.080151.5163.4151.5163.4173.9183.336.20.00100623.742425.12416.02567.52409.239.041.543.80.0010070.0010080.00100920.532428.92572.618.1016.202432.32435.32438.0173.92403.22397.92577.10.090183.3191.82581.10.1045.80.00101014.67191.82392.92584.80.1147.70.00101113.42199.72440.5199.72388.449.451.152.62588.12591.22594.02596.7206.9213.70.120.00101212.362442.8206.92384.30.130.00101311.472445.0213.72380.40.140.00101310.69220.02447.0220.02376.7Appendix B Physical Property Tables 64510.029.438.918.458.03226.0231.6236.90.1554.00.0010142448.9226.02373.22599.20.1655.30.0010152450.6231.62370.02601.656.60.0010152452.32453.92366.92603.80.170.18236.957.80.001016242.0242.02363.92605.90.1959.00.001017246.82455.4246.82361.12607.90.0010170.0010180.001019251.5260.1268.2251.5260.1268.20.2060.12358.47.657.002456.92609.92459.62462.12353.32348.62613.52616.80.2262.20.2464.16.450.2665.90.0010205.98275.62464.4275.72344.22619.90.2867.50.0010215.58282.72466.5282.72340.02622.75.234.530.300.0010222336.12327.269.1289.32468.6289.32625.40.3572.70.001025304.32473.1304.32631.575.93.99317.62477.1317.72319.22636.92641.72646.00.400.0010270.0010280.450.5078.781.3329.62312.02305.43.582480.7329.60.0010303.24340.52484.0340.6350.6359.90.5583.70.0010322649.92.962.732.53350.6359.92486.92299.386.088.02489.72492.20.600.0010330.0010352293.62288.32283.32653.60.65368.5368.62656.90.0010360.0010370.7090.02.36376.72494.5376.82660.10.7591.82.22384.42496.7384.52278.62663.00.0010390.0010400.802.087391.62498.82500.893.5391.7398.6405.22274.12665.80.8595.21.972398.52269.82668.40.9096.70.0010411.869405.12502.62265.62670.92673.22261.72257.90.9598.20.0010421.777411.42504.4411.51.001.01325(1 atm)99.60.0010431.694417.42506.1417.52675.4100.00.0010441.673419.02506.5419.12256.92676.0 Saturated steam at an absolute pressure of 5 bar is used to heat a stream of dry air. Air enters a heat exchanger at 0 °C and an absolute pressure of 1 bar and at a rate of 1000 mol/min.It is then heated at constant pressure to 100 °C. The steam condenses and leaves the exchanger as a saturated liquid at 54 °C. The specific enthalpy of air at the given pressure is 0kJ/mol at 0 °C and 3 kJ/mol at 100 °C.a. Draw and completely label the process flow diagram for this system.b. Calculate the volumetric flow rate of air.c. Based on the enthalpies provided, what is the reference state used for air?d. Calculate the energy needed to properly heat the air passing through the exchanger.e. Calculate the mass flow rate of steam supplied to the exchanger.%3DGiven: 1 bar = 105 N/m2, R = 0.08314 L bar/mol K, Q = AH, Q = AU, AĤ = AÛ + PAÑ, table B.6 in kJ/kg and m /kg.%3D%3D

Heat exchangers are used to transfer heat from one medium to another. They can be of direct contact…

Saturated steam at an absolute pressure of 5 bar is used to heat a stream of dry air. Air enters a heat exchanger at 0 °C and an absolute pressure of 1 bar and at a rate of 1000 mol/min It is then heated at constant pressure to 100 °C. The steam condenses and leaves the exchanger as a saturated liquid at 54 °C. The specific enthalpy of air at the given pressure i kJ/mol at 0 °C and 3 kJ/mol at 100 °C. a. Draw and completely label the process flow diagram for this system. b. Calculate the volumetric flow rate of air. c. Based on the enthalpies provided, what is the reference state used for air? d. Calculate the energy needed to properly heat the air passing through the exchanger. e. Calculate the mass flow rate of steam supplied to the exchanger. Given: 1 bar = 105 N/m2, R = 0.08314 L bar/mol K, Q = AH, Q = AU, AĤ = AÛ + PAV, table B.6 in kJ/kg and m/kg.

Saturated steam at an absolute pressure of 5 bar is used to heat a stream of dry air. Air enters a heat exchanger at 0 °C and an absolute pressure of 1 bar and at a rate of 1000 mol/min It is then heated at constant pressure to 100 °C. The steam condenses and leaves the exchanger as a saturated liquid at 54 °C. The specific enthalpy of air at the given pressure i kJ/mol at 0 °C and 3 kJ/mol at 100 °C. a. Draw and completely label the process flow diagram for this system. b. Calculate the volumetric flow rate of air. c. Based on the enthalpies provided, what is the reference state used for air? d. Calculate the energy needed to properly heat the air passing through the exchanger. e. Calculate the mass flow rate of steam supplied to the exchanger. Given: 1 bar = 105 N/m2, R = 0.08314 L bar/mol K, Q = AH, Q = AU, AĤ = AÛ + PAV, table B.6 in kJ/kg and m/kg.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

Using the table

TABLE B.6 Properties of Saturated Steam: Pressure Table
V(m³/kg)
Û (kJ/kg)
Ĥ (kJ/kg)
P(bar)
T(°C)
Water
Steam
Water
Steam
Water
Evaporation
Steam
0.001000
0.001000
2375.6
2380.7
+0.0
15.8
0.00611
2501.6
0.01
3.8
206.2
159.7
zero
2501.6
0.008
15.8
2492.6
2508.5
2485.0
2478.7
2473.2
0.010
7.0
0.001000
129.2
2385.2
2514.4
29.3
40.6
50.3
29.3
0.012
9.7
0.001000
108.7
2388.9
40.6
2519.3
12.0
93.9
2392.0
2394.8
2397.4
0.014
0.001000
50.3
2523.5
0.016
0.018
14.0
0.001001
82.8
58.9
58.9
2468.4
2527.3
15.9
0.001001
74.0
66.5
66.5
2464.1
2530.6
0.020
0.022
0.024
0.026
17.5
0.001001
67.0
73.5
2399.6
2401.7
2403.6
73.5
2460.2
2533.6
61.2
56.4
19.0
0.001002
79.8
79.8
2456.6
2536.4
20.4
0.001002
85.7
85.7
2453.3
2539.0
21.7
0.001002
52.3
91.1
2405.4
91.1
2450.2
2541.3
0.028
23.0
0.001002
48.7
96.2
2407.1
96.2
2447.3
2543.6
0.030
0.035
0.001003
101.0
111.8
2408.6
2412.2
2415.3
101.0
111.8
2545.6
2550.4
24.1
45.7
2444.6
39.5
2438.5
2433.1
26.7
0.001003
0.040
29.0
0.001004
34.8
121.4
121.4
2554.5
0.045
0.050
130.0
137.8
2428.2
2423.8
31.0
0.001005
31.1
130.0
2418.1
2558.2
32.9
0.001005
28.2
137.8
2420.6
2561.6
0.060
0.070
0.080
151.5
163.4
151.5
163.4
173.9
183.3
36.2
0.001006
23.74
2425.1
2416.0
2567.5
2409.2
39.0
41.5
43.8
0.001007
0.001008
0.001009
20.53
2428.9
2572.6
18.10
16.20
2432.3
2435.3
2438.0
173.9
2403.2
2397.9
2577.1
0.090
183.3
191.8
2581.1
0.10
45.8
0.001010
14.67
191.8
2392.9
2584.8
0.11
47.7
0.001011
13.42
199.7
2440.5
199.7
2388.4
49.4
51.1
52.6
2588.1
2591.2
2594.0
2596.7
206.9
213.7
0.12
0.001012
12.36
2442.8
206.9
2384.3
0.13
0.001013
11.47
2445.0
213.7
2380.4
0.14
0.001013
10.69
220.0
2447.0
220.0
2376.7
Appendix B Physical Property Tables 645
10.02
9.43
8.91
8.45
8.03
226.0
231.6
236.9
0.15
54.0
0.001014
2448.9
226.0
2373.2
2599.2
0.16
55.3
0.001015
2450.6
231.6
2370.0
2601.6
56.6
0.001015
2452.3
2453.9
2366.9
2603.8
0.17
0.18
236.9
57.8
0.001016
242.0
242.0
2363.9
2605.9
0.19
59.0
0.001017
246.8
2455.4
246.8
2361.1
2607.9
0.001017
0.001018
0.001019
251.5
260.1
268.2
251.5
260.1
268.2
0.20
60.1
2358.4
7.65
7.00
2456.9
2609.9
2459.6
2462.1
2353.3
2348.6
2613.5
2616.8
0.22
62.2
0.24
64.1
6.45
0.26
65.9
0.001020
5.98
275.6
2464.4
275.7
2344.2
2619.9
0.28
67.5
0.001021
5.58
282.7
2466.5
282.7
2340.0
2622.7
5.23
4.53
0.30
0.001022
2336.1
2327.2
69.1
289.3
2468.6
289.3
2625.4
0.35
72.7
0.001025
304.3
2473.1
304.3
2631.5
75.9
3.99
317.6
2477.1
317.7
2319.2
2636.9
2641.7
2646.0
0.40
0.001027
0.001028
0.45
0.50
78.7
81.3
329.6
2312.0
2305.4
3.58
2480.7
329.6
0.001030
3.24
340.5
2484.0
340.6
350.6
359.9
0.55
83.7
0.001032
2649.9
2.96
2.73
2.53
350.6
359.9
2486.9
2299.3
86.0
88.0
2489.7
2492.2
0.60
0.001033
0.001035
2293.6
2288.3
2283.3
2653.6
0.65
368.5
368.6
2656.9
0.001036
0.001037
0.70
90.0
2.36
376.7
2494.5
376.8
2660.1
0.75
91.8
2.22
384.4
2496.7
384.5
2278.6
2663.0
0.001039
0.001040
0.80
2.087
391.6
2498.8
2500.8
93.5
391.7
398.6
405.2
2274.1
2665.8
0.85
95.2
1.972
398.5
2269.8
2668.4
0.90
96.7
0.001041
1.869
405.1
2502.6
2265.6
2670.9
2673.2
2261.7
2257.9
0.95
98.2
0.001042
1.777
411.4
2504.4
411.5
1.00
1.01325
(1 atm)
99.6
0.001043
1.694
417.4
2506.1
417.5
2675.4
100.0
0.001044
1.673
419.0
2506.5
419.1
2256.9
2676.0

Saturated steam at an absolute pressure of 5 bar is used to heat a stream of dry air. Air enters a heat exchanger at 0 °C and an absolute pressure of 1 bar and at a rate of 1000 mol/min.
It is then heated at constant pressure to 100 °C. The steam condenses and leaves the exchanger as a saturated liquid at 54 °C. The specific enthalpy of air at the given pressure is 0
kJ/mol at 0 °C and 3 kJ/mol at 100 °C.
a. Draw and completely label the process flow diagram for this system.
b. Calculate the volumetric flow rate of air.
c. Based on the enthalpies provided, what is the reference state used for air?
d. Calculate the energy needed to properly heat the air passing through the exchanger.
e. Calculate the mass flow rate of steam supplied to the exchanger.
%3D
Given: 1 bar = 105 N/m2, R = 0.08314 L bar/mol K, Q = AH, Q = AU, AĤ = AÛ + PAÑ, table B.6 in kJ/kg and m /kg.
%3D
%3D

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