Design and Optimization of Thermal Systems Episode 3 Part 9 doc

... 1at 0 0at 1Z d dZ Z 14 8 Design and Optimization of Thermal Systems equations that govern most practical thermal systems are amenable to a solution by analytical methods in very few cases and ... gases Recirculating fan MaterialOpening Flow FIGURE 3 . 18 An electric furnace for heat treatment of materials. 15 2 Design and Optimization of Thermal Systems...

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...    () ( ) ( 10 20 1 )( ) ( ! xxxx xx n 01 )( ) ( )  1 (3.33) Modeling of Thermal Systems 19 3 equation are calculated as 14 5 .93 , 12 9. 44, 11 4. 81, 90 .33, 85.07, 63.03, 34. 61, 25.64, and 14 .08. Therefore, ... considered in Example 3.7 at Re  10 0 and Gr/Re 2 values of (a) 0 .1, (b) 1. 0, and (c) 10 .0. (Adapted from Papanicolaou and Jaluria,...

Ngày tải lên: 06/08/2014, 15:20

... = 11 4.6578 10 9.7 928 10 5.3803 10 1.39 81 97. 826 3 94.6467 91. 8434 89.4 022 87. 310 9 85.5588 84 .13 71 83.0388 82. 25 81 81. 7 914 81. 6360 81. 7 914 82. 25 81 83.0388 84 .13 71 85.5588 87. 310 9 89.4 022 91. 8434 94.6467 97. 826 3 10 1.39 81 105.3803 10 9.7 928 11 4.6578 T (1) ... = T (11 ) = T( 12 ) = T (13 ) = T (14 )= T (15 ) = T (16 ) = T (17 ) = T (18 ) = T (...

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... states. 3 04 Design and Optimization of Thermal Systems Library of Previous Designs Any industry involved with the design of systems and equipment would generally develop many successful designs ... design 4. Modeling of the system 5. Simulation of the system 6. Evaluation of the design 7. Selection of an acceptable design Optimization of the desig...

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... constant Δ G y (b) x 4.0 3. 0 2.0 1. 0 4. 03. 0 3 2 1 2. 01. 00.0 U = x + y = 4 U*= 2 G = xy – 1 = 0 474 Design and Optimization of Thermal Systems seek the global extremum, which is usually unique and represents ... . )( . ) . 35 14 14 8 22 49 04 32 mm 04 32 32 56 0 . Therefore, m Ô Ư Ơ à 32 56 49 1 692 13 6 . . . /. The second derivative is obta...

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... This leads to the equation 20 41 67 29 1 1 20 8 22 . (. / )  VV or 2. 9 V 1  (9.816) 1 /2  3. 133 Therefore, V *  1. 425 m 3 . Then, A *  26 . 536 m 2 and U *  122 5.16. It can easily be shown ...  m 1   m 2 , is given as 14 and the follow- ing equations apply: qmm qmm 11 2 1 22 2 2 436 32 5     Obtain the values of  m 1 and  m 2...

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... as xyU 0.5 1. 633 9.840 1.944 1. 633 6.788 1.944 0.828 5.598 2. 438 0.828 5.456 2. 438 0.740 5.428 2. 532 0.740 5.4 23 2. 532 0.726 5.4 23 2.548 0.726 5.422 2.548 0.7 23 5.422 2.550 0.7 23 5.422 2.550 0.7 23 5.422 For ... 0.844 5.528 2.245 0.718 5.475 2.295 0.782 5.4 53 2 .38 5 0.717 5. 438 2.41 0.752 5. 431 2.47 0.716 5.427 2.48 0. 733 5.424 2.54 0. 733 5.4 23 2.54 0. 733 5.4 23 Ag...

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... W 1 W 2 W 3 . (c) Response surface for the objective function F for W 1 W 2 W 3 / 2. 5 54 Design and Optimization of Thermal Systems Stoecker, W.F. (1989) Design of Thermal Systems, 3rd ed., ... U * . This gives w 1  10 /3, w 2 1, and w 3 4 /3. Therefore, U * / . / . / Ô Ư Ơ à Ô Ư Ơ à 10 5 10 3 12 1 015 43 10 3 1 ÔÔ Ư Ơ à 43...

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... 10.7. 57 4 Design and Optimization of Thermal Systems with w 1  w 2  w 3  1and w i u U i 1 4 4 5 5 4 5 Ô Ư Ơ à Ô Ư Ơ à u w u w w w (10 .33 ) with w 4 w 5 1andw 4 u 4 1 , w 5 u 5 1 Equation ... 12 2 13 3 14 4 15 5 21 1 22 0    22 233 244 255 41 1 42 2 43 0    aw paw paw aw aw aw " 33 44 4 45 5 0pa w pa w (10 . 35 ) with w 1  w...

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... locations given as A–1 A–2 A 3 A–4 1–D 2–D 3 D 4–D 10 14 12 15 16 12 10 8 and 1–1 1–2 1 3 1–4 2–1 2–2 2 3 2–4 16 20 14 17 12 14 15 6 3 1 3 2 3 3 3–4 4–1 4–2 4 3 4–4 10 11 13 18 8 11 14 22 Determine ... amount of time in going from A to D. A D CB 44 33 22 11 FIGURE P10.20 60 4 Design and Optimization of Thermal Systems to enable accurate results to be obtai...

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... 628 Design and Optimization of Thermal Systems 11.5 AN OVERVIEW OF DESIGN OF THERMAL SYSTEMS Basic aspects. In this book, we have considered the design and optimization of systems in which thermal ... most problems of practical interest and are of particular signicance in optimization since minimization of costs and maximization of 644 Desi...

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... 38 0.2 36 5 91 .85 197 0.9672 1.010 1 .39 84 21 . 38 31 .14 0.694 36 5 .8 38 2 .8 37 0 96 .85 206 0.9 539 1.011 1 .39 81 21.60 31 .50 0.6 93 370 .8 38 5.4 37 5 101 .85 215 0.94 13 1.011 1 .39 78 21 .81 31 .86 0.692 37 5.9 38 8. 0 38 0 ... 39 5.5 39 5 121 .85 251 0 .8 936 1.014 1 .39 64 22.65 33 .31 0. 689 39 6.1 39 8. 0 400 126 .85 260 0 .88 22 1.014 1 .39 61 22...

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... 4. 93 6 3E-01 1.2659E 01 7. 899 3E-02 20 2. 191 1E 00 4.5 6 39 E-01 1 .35 90 E 01 7 .35 82E-02 25 2.6658E 00 3. 7512E-01 1.5622E 01 6.4012E-02 30 3. 2 434 E 00 3. 0 832 E-01 1.7 292 E 01 5.7 830 E-02 35 3. 94 61E 00 2. 534 2E-01 ... 6 73 Pure 8 ,95 4 0 .38 31 38 6 11. 234 407 38 6 37 9 37 4 36 9 36 3 35 3 Aluminum bronze: 95 Cu, 5 Al 8,666 0.410 83 2 .33 0 Bronze: 75 Cu,...

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... environmental systems, 33 6 34 2, 33 8 34 2 three-dimensional problem, 33 9 two-dimensional surface ow due to, 34 1 702 Design and Optimization of Thermal Systems optimization of, 433 priority for changing, 32 2 sensitivity ... 720 Design and Optimization of Thermal Systems System design applications, 32 2 32 3 component design vs. system design, 36...

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... 465 vs. optimal design, 18 Working models, communicating design through, 91 Worth as function of time, 38 4, 38 5, 39 0 future worth, 39 1 39 3 ination and, 39 3 39 6 present worth, 39 0 39 1 Y Years to ... 407 722 Design and Optimization of Thermal Systems Trademarks, 93 Transience effect on complexity of problem, 176 in mathematical modeling, 135 – 139 and ti...

Ngày tải lên: 06/08/2014, 15:21