- Use Spacing Between The Base Points Of 5 Only Do 40 45 50 55 60 1 (59.35 KiB) Viewed 16 times
- Use Spacing Between The Base Points Of 5 Only Do 40 45 50 55 60 2 (59.35 KiB) Viewed 16 times
USE SPACING BETWEEN THE BASE POINTS OF 5 ONLY. Do 40,45,50,55,60.
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answerhappygod
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USE SPACING BETWEEN THE BASE POINTS OF 5 ONLY. Do 40,45,50,55,60.
USE SPACING BETWEEN THE BASE POINTS OF 5 ONLY. Do 40,45,50,55,60.
- . 60 . 3. 8. Write a Matlab function program der 4(x,y) which, given the value of a function at five base points (x, y), uses a fourth degree interpolating polynomial to evaluate the derivative of the function at the central base point. Use the Matlab utilities polyfit, polyder and polyval to do this. Use this function program to solve the following problem: Calculate the enthalpy of vaporization hy of water at 50°C to at least 5 significant figures from the Clapeyron equation hqg - TV ( 2 ) dt Sat a slope of this line (dP /dT2sat = hrg/(T Vrg) is ar Here (dP/dT) salt is the slope of the vaporization line, T is absolute temperature (K="C + 273.15) and urg is the difference in specific volume between saturated liquid and saturated vapor (upp = 0, - vp). Use five equally spaced base points centered about T = 50°C and use a spacing between the base points of 5, 10.15 and 20°C. In each the 4 Cases case, compare your calculated value of hra with that reported in the table and comment on the accuracy of your results. 45 50 55 Saturated water-Temperature table 30 40 50 70 Specific volume, Enthalpy: m/kg kJ/kg Sat. Sat. Sat Sat. 20 3s so is Termр., press liquid, Sat. liquid Evap.. vapor TTC PkPa vapor, hor he ht 0.01 0.6113 0.001000 206.14 to 50 7090 0.012501.3 2501.4 0.8721 0.001000 147.12 20.98 2489.5 2510.6 10 1.2276 0.001000 106.38 42.01 2477.7 2519.8 1.7051 0.001001 77.93 62.99 2465.9 2528.9 20 2.339 0.001002 57.79 83.96 2454.1 2538.1 25 3.169 0.001003 43.36 104.89 2442.3 2547.2 30 4.246 0.001004 32.89 125.79 2430.5 2556.3 35 5.628 0.001006 25.22 146.68 2418.6 2565,3 40 7.384 0.00100B 19.52 167.57 2406.7 2574.3 45 9.593 0.001010 15.26 188.45 2394.8 2583.2 50 12.349 0.001012 12.03 209.33 2382.7 2592.1 55 15.758 0.001015 9.568 230.23 2370.7 2600.9 19.940 0.001017 7.671 251.13 2358.5 2609.6 65 25.03 0.001020 6.197 272.06 2346.22618.3 31.19 0.001023 5.042 292.98 2333.8 2626.8 75 38,58 0.001026 4.131 313.93 2321.4 2635.3 47.39 0.001029 3.407 334.91 2308.8 2643.7 85 57.83 0.001033 2.828 355.90 2296.0 2651.9 90 70.14 0.001036 2.361 376.92 2283.2 2660.1 95 84.55 0.001040 1.982 397.96 2270.22668.1 8. V, . 9 30 5 15 60 70 88888888 (ap/at) Sat
- . 60 . 3. 8. Write a Matlab function program der 4(x,y) which, given the value of a function at five base points (x, y), uses a fourth degree interpolating polynomial to evaluate the derivative of the function at the central base point. Use the Matlab utilities polyfit, polyder and polyval to do this. Use this function program to solve the following problem: Calculate the enthalpy of vaporization hy of water at 50°C to at least 5 significant figures from the Clapeyron equation hqg - TV ( 2 ) dt Sat a slope of this line (dP /dT2sat = hrg/(T Vrg) is ar Here (dP/dT) salt is the slope of the vaporization line, T is absolute temperature (K="C + 273.15) and urg is the difference in specific volume between saturated liquid and saturated vapor (upp = 0, - vp). Use five equally spaced base points centered about T = 50°C and use a spacing between the base points of 5, 10.15 and 20°C. In each the 4 Cases case, compare your calculated value of hra with that reported in the table and comment on the accuracy of your results. 45 50 55 Saturated water-Temperature table 30 40 50 70 Specific volume, Enthalpy: m/kg kJ/kg Sat. Sat. Sat Sat. 20 3s so is Termр., press liquid, Sat. liquid Evap.. vapor TTC PkPa vapor, hor he ht 0.01 0.6113 0.001000 206.14 to 50 7090 0.012501.3 2501.4 0.8721 0.001000 147.12 20.98 2489.5 2510.6 10 1.2276 0.001000 106.38 42.01 2477.7 2519.8 1.7051 0.001001 77.93 62.99 2465.9 2528.9 20 2.339 0.001002 57.79 83.96 2454.1 2538.1 25 3.169 0.001003 43.36 104.89 2442.3 2547.2 30 4.246 0.001004 32.89 125.79 2430.5 2556.3 35 5.628 0.001006 25.22 146.68 2418.6 2565,3 40 7.384 0.00100B 19.52 167.57 2406.7 2574.3 45 9.593 0.001010 15.26 188.45 2394.8 2583.2 50 12.349 0.001012 12.03 209.33 2382.7 2592.1 55 15.758 0.001015 9.568 230.23 2370.7 2600.9 19.940 0.001017 7.671 251.13 2358.5 2609.6 65 25.03 0.001020 6.197 272.06 2346.22618.3 31.19 0.001023 5.042 292.98 2333.8 2626.8 75 38,58 0.001026 4.131 313.93 2321.4 2635.3 47.39 0.001029 3.407 334.91 2308.8 2643.7 85 57.83 0.001033 2.828 355.90 2296.0 2651.9 90 70.14 0.001036 2.361 376.92 2283.2 2660.1 95 84.55 0.001040 1.982 397.96 2270.22668.1 8. V, . 9 30 5 15 60 70 88888888 (ap/at) Sat
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