TY  - SER
AU  - Pamekas
AU  - Orth,H.M.
AU  - Nguyen,Cong Thanh
AU  - Fude,I.
ED  - The Federal Republic of Germany,
TI  - A comparison between Hardy Cross method & O. R. based procedure for the design of water distribution system
T2  - Thesis
PY  - 1983///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Water quality management
KW  - Nepal
KW  - Phewa Lake
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering; Thesis (M.Eng.) - Asian Institute of Technology, 1983
N2  - The quality and applicability of the linear optimization model was  compared to the Hardy Cross method.  1'he result indicates that the'new methods more qualitative which  satisfies all constraints simultaneously. However, in some cases, the  product is not practical and this could be adjusted and checked by Hardy  Cross.  The new method is applicable for the optimum design at one run when  the constraint is set up accurately. Moreover, the determination of short-  est path, the change of objective function and the extensification design  employing the equivalent pipe principle demonstrate their capability.  However, it is observed that the new model is sensitive to the particular  type of layout.  Although several runnings are needed by Hardy Cross, the method is  applicable for the design as well as checking. However, this method is  sensitive to the initial guess of pipe which affects the solution which  therefore does not converge.  Moreover, to be sure that this design is optimum, the result should  be compared to the result of the linear optimization model.  Finally, the combination of the linear optimization model and the·  Hardy Cross method produces a higher quality result compared to the ori-  ginal Hardy Cross.
ER  -