process modeling simulation and control for chemical engineers - 2nd ed

... LUYBENWILLIAM 1. LUYBEN I PROCESS MODELING ,PROCESS MODELING, l SIMULATION AND SIMULATION AND \ CONTROL iOR 5 CONTROL FlitI m CHEMICAL ENGINEERS m SECOND EDITION- I a I 1 L . . . PREFACE ... Laplace, and frequency tech- niques if both the dynamics and the control are presented together for each domain. Therefore, openloop dynamics and closedloop c...

Ngày tải lên: 01/04/2014, 11:12

... place, q=O. For these conditions, equations 1.8 and 1.9 may be combined and written as 22g +-+ - = qg +-+ - +w;:-w, (1.10) ( p2 P22 ( p1 p1 2 Q Figure 1.4 Energy balance for fluid ... simplifications and the fact 16 FLUID FLOW FOR CHEMICAL ENGINEERS that there is no pump in the section, Bernoulli's equation reduces to P2 Uf P, u: Pg 2g...

Ngày tải lên: 02/04/2014, 14:42

... work is justified, a detailed-estimate design may be developed. In this type of design, the cost- and- profit potential of an established process is determined by detailed analyses and calculations. ... for the proposed plant are made. Probable returns on the required investment are determined, and a complete cost -and- profit analysis of the process is developed. Before the final...

Ngày tải lên: 01/04/2014, 11:35

... model formulation, and there have been recent attempts to simulate the thinking of experienced engineers through a format called Expert Systems. The following step-by-step procedure may be useful for ... into the form required for taking limits, and then divide by Az -v 0 A P C p nZ + Az A ]~ nz) - (2TrRh)(T - T w ) - 0 (1.7) Taking limits, one at a time, then y...

Ngày tải lên: 02/04/2014, 15:50

... pattern. ž Identify types of point and line defects in solids. An Introduction to Materials Engineering and Science: For Chemical and Materials Engineers, by Brian S. Mitchell ISBN 0-4 7 1-4 362 3-2 Copyright  2004 ... this thesis he published the well-known law:  P + a V 2  (V −b) = RT This revision to the ideal gas law accounted for the specific volume of gas molecules...

Ngày tải lên: 02/04/2014, 15:46

... magnitude for uniform sands and glass spheres. Therefore, Hazen's equation should be used only for uniform sands (sphericity and roundness > 0.90). The sphericity and roundness may be estimated ... (Scott 1963 and Parker and Thornton 1976) where k us = unsaturated permeability m = constant with values between 2 (uniform grain size) and 4 (well-graded materials) ( 2-1...

Ngày tải lên: 28/04/2014, 11:51

... located so that 9-6 2 EM 111 0-2 -1 901 30 Sep 86 Figure 9-2 3. Typical relief well (after EM 111 0-2 -1 913) 9-6 3 EM 111 0-2 -1 901 30 Sep 86 their tops are accessible for cleaning, sounding for sand, and ... Station 120 ) 9-6 8 EM 111 0-2 -1 901 30 Sep 86 9-4 1 EM 111 0-2 -1 901 30 Sep 86 9-6 9 EM 111 0-2 -1 901 30 Sep 86 The transformed permeabilit...

Ngày tải lên: 28/04/2014, 11:51

... required. The model is intended for shape control and design of deployable structures. Indeed, the explicit analytical expressions are provided herein for the study of stable equilibria and controllability, ... designed, followed by the addition of control actuation. Rather, controlled structures will be conceived as an interdisciplinary process in which both material architectu...

Ngày tải lên: 18/10/2013, 09:15

... of Designed Robot Motor Joint Rated Power (W) Harmonic Drive (Reduction Ratio) J 1 L40 2-0 11 (23.0) FRS-2 0-1 60 (160) J 2 L72 0-0 12 (200.0) CSS-3 2-1 60 (160) J 3 L51 1-0 12 (110.0) CSS-3 2-1 60 (160) J 4 L40 2-0 11 ... CSS-3 2-1 60 (160) J 4 L40 2-0 11 (23.0) CSS-2 0-8 0 (80) J 5 R30 1-0 11 (11.0) FRS-2 0-1 60 (160) J 6 R30 1-0 11 (11.0) CSS-2 0-5 0 (50) Th...

Ngày tải lên: 25/10/2013, 13:15