Design and Optimization of Thermal Systems Episode 2 Part 2 ppt

... obtained Yes No Acceptable? Analysis and evaluation Experimental data Material properties Redesign Initial design Components Inputs FIGURE 1.4 Schematic of a typical design procedure. 2 Design and Optimization of Thermal Systems those ... consideration of systems, components, and subsystems. The basic nature of thermal systems will be outlined, and examples...

Ngày tải lên: 06/08/2014, 15:20

... 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 ... optimiza- tion methods. 5 02 Design and Optimization of Thermal Systems Fxx x U x G x G nm1 12 1 1 1 1 1 2 2 (, , , , , , )##LL L L t t  t t  t tt  t t   t...

Ngày tải lên: 06/08/2014, 15:21

... (1985) and Incropera and Dewitt (20 01) in heat transfer, Fox and McDonald (20 03) and Shames (19 92) in uid mechanics, Howell and Buckius (19 92) , Cengel and Boles (20 02) and Moran and Shapiro (20 00) ... Similarly, examples of thermal systems range from simple pipe and channel ows through thermodynamic systems to more 40 Design and Optimization of...

Ngày tải lên: 06/08/2014, 15:20

... equation t t  t t  t t  2 2 2 2 2 2 2 2 2 2 0 QQQ X L HY L WZ (3.6) z W H L x y FIGURE 3.9 Three-dimensional conduction in a solid block. Modeling of Thermal Systems 141 obtained instead of differential ... representation, and (d) enclosure conguration for thermal radiation analysis. 134 Design and Optimization of Thermal Systems treatment. The ow of...

Ngày tải lên: 06/08/2014, 15:20

... Considerations 55 2. 2 Conceptual Design 58 2. 2.1 Innovative Conceptual Design 58 2. 2 .2 Selection f rom Avai lable Concepts 62 2 .2. 3 Modications in the Design of Existing Systems 64 2. 3 Steps in the Design ... Application to Thermal Systems 610 11 .2 Additional Constraints 621 11.3 Professional Ethics 623 11.4 Sour ces of In for mat ion 625 11.5 An Overview...

Ngày tải lên: 06/08/2014, 15:20

... solidicaiton. 58 Design and Optimization of Thermal Systems 2. 2 CONCEPTUAL DESIGN At the very core of any design activity lies the basic concept for the process or the system. The design effort ... (From Center of Advanced Food Technology, Rutgers University, New Jersey. With permission.) 70 Design and Optimization of Thermal Systems The systems shown...

Ngày tải lên: 06/08/2014, 15:20

... system Redesign FIGURE 2. 14 Various steps involved in the design and optimization of a thermal system and in the implementation of the design. 84 Design and Optimization of Thermal Systems it allows ... ΔQT 2, o  T o o ΔT (2. 10) Constraints: (D 1 ) min < D 1 < D 2  2t 2 D 2 < (D 2 ) max L < L max (2. 11) Operating Conditions:  m 1 T 1,...

Ngày tải lên: 06/08/2014, 15:20

... substantially aid the design process. 2. 4 .2 COMPUTER-AIDED DESIGN OF THERMAL SYSTEMS The main elements of a CAD system for the design of thermal processes and equipment are shown in Figure 2. 27. The various ... completed the design of the following thermal systems, using 104 Design and Optimization of Thermal Systems 2. 5 MATERIAL SELECTION The...

Ngày tải lên: 06/08/2014, 15:20

... (A 1 Z)  a 2 exp (A 2 Z) where aa 1 22 1 12 2 2 11    AA AAAA AAexp exp exp exp() () () () AAAAA 1 12 2 exp exp() () with AA 1 2 2 2 4 2 4 2    WW H WW H If W  0, A 1  H and A 2  H . ... 1.10(d) and Figure 3.6(a), is governed by the equation R T C T U T x kT t t  t t ¤ ¦ ¥ ³ µ ´  2 (3 .24 ) where  2 is the L aplacian, given by tt tt tt 2...

Ngày tải lên: 06/08/2014, 15:20

...  £££ (3.51) cxcx cxx x ,i ,i ,i ,i ,i011 1 2 2 12 1 () ££ £  yy i £ (3. 52) cxcxxc x xy ,i ,i ,i ,i ,i i 021 122 2 2 2 () ££ £  ££ (3.53) 178 Design and Optimization of Thermal Systems Dynamic Similarity This ... 3 .25 is yaaxax bbxbxx ccx         0 122 0 123 1 0 122 2 2 2    cx x 22 2 1 2 (3.34) 3.5 .2 BEST FIT The data obtained in many en...

Ngày tải lên: 06/08/2014, 15:20