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Interested students should consult with their faculty advisors. New book titles published worldwide in 2013 was approximately 1.8 million. Through art and film programs, collections and research resources, BAM/PFA is the visual arts center of UC Berkeley. A double-pipe heat exchanger (inside tube diameter of 0.5 m cools engine oil from 160°C to 60°C. A brief survey of the rheological behavior of polymers is also included. Topics include batch, plug flow, backmix reactors, empirical rate expressions, residence time analysis, catalytic reactions, stability, and optimization.

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Furthermore, there are a number of cases where geometries that appear quite different to the unpracticed eye are actually similar. Macroscopic Balances for Nonisothermal Systems. This Community Services Report is a retrospective look at our 2015 Fiscal Year (Aug. 1 — July 31), ... Note that in this simple program no provision is made for automatically varying C, so as to force Eq. (ii) to be correct. Discuss the turbulent velocity profile in general terms from the most ideal representation to the least desirable. 6.9.

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Note that both (q/A), and k are constant in Eq. (4.15). Colloid Chem., 52,277-299,300-314, 314-321 (1948). Copyright 1940. = lo6. and cylinders is shown in Figure 4-1. The center of the cloud front is then considered to be the new center of attack area. Likewise, NR cannot be obtained from either NNU or NRe, since cP is not contained in the latter two. A 1-mm-diameter droplet of water falls through dry still air (1 atmosphere, 373°C).

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This course is not eligible for Credit/D/Fail grading. [3-0-2*] Experiments chosen to illustrate and use material presented in 200-level CHBE and CHEM courses. Bird, Molecular Theory of Gases and Liquids, Wiley, New York, 2nd corrected printing (1964), pp. 791-797. BASIC DATA 413 Table A-3-2 (continued) k.1 74. With foreign competition almost non-existent, the U. The exchanger is to be replaced by two smaller exchangers (equal areas) by bleeding off 0.62 kg/sec of water at 50°C.

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Richard Griskey's innovative text combines the often separated but intimately related disciplines of transport phenomena and unit operations into one cohesive treatment. The M256 series contains ABC-M8 Chemical Agent Detector Paper for liquids and samplers/detectors for vapors. Neglecting the Brinkman number term is appropriate, except for flows of very viscous fluids with large velocity gradients, or in hypersonic boundary layers (510.4).

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For such a problem, we know that the velocity potential must satisfy Laplace's equation (see text after Eq. 4.3-11). (a) State the boundary conditions for the problem. (b) Give reasons why the velocity potential 4 can be postulated to be of the form +(r, 6) = f(r) cos 19. (c) Substitute the trial expression for the velocity potential in (b) into Laplace's equation for the velocity potential. (d) Integrate the equation obtained in (c) and obtain the function f(r) containing two con- stants of integration; determine these constants from the boundary conditions and find 1 R 4 = -ZJ,R[(;) + (?)i] cos I9 (el Next show that ,, = 4 1 - (;)i] cos I9 ve = -v.[l + f (:r] sin 6 (f) Find the pressure distribution, and then show that at the sphere surface 9 - 9, = $pvi(l - sin2 8) (4B.5-4) 4B.6 Potential flow near a stagnation point (Fig. 4B.6). (a) Show that the complex potential w = -v, ?~ describes the flow near a plane stagnation point. (b) Find the velocity components v,(x, y) and v,(x, y). (c) Explain the physical significance of v,.

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Mole fraction of ammonia in the entering gas is 0.3. Hence By subtracting from this its time-smoothed counterpart, we find that an equation like Eq. 21.5-18 must hold for the fluctuations: ( 4 - 4 ) =(") CAO + CBO reactive nonreactive The time-smoothed mean square of the quantity on the right side is equal to d2, which is measurable as illustrated in Fig. 21.5-2, and therefore we have a way of predicting the corresponding quantity for reacting systems. Equation (11.35) is a partial differential equation that is very complex to solve; hence, a further simplification (the boundary layer assumption first introduced in Example 5.8) is required.

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The inside surface of a hollow spherical shell is maintained at a concentration of C,. The mass flow rate w is given by w = PLS (7.10) Since for this problem w, p, and S are all constant, CJ., is also constant, which makes the kinetic energy term zero [cf. I; for ease of notation, 0, and 0* have also been introduced in the above equations. C. 3: The nature of the boundary conditions suggests that a combination of variables treatment might be appropriate.

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Hence, if the only significant dimensionless group is a Reynolds number, Re = l,v,p/p, then Eq. 7.5-2 must have the general form a dimensionless function of Re and various geometrical ratios (7.5-3) A In steady-state flow we prefer to work with the quantity E, = EJw, in which w = p(v)S is the mass rate of flow passing through any cross section of the flow system. Of course, many of the most important unit operations take place in equipment of complicated geometry, with strongly coupled combinations of heat and mass transfer, fluid mechanics, and chemical reaction, so that the exact equations could not be solved in a context of any direct relevance to the process of interest.

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System dimensions are: DT = 1.44 m, D’ = 0.48 m, Z1 = 1.44 m. For polymethylmethacrylate the Twa]l and n values can be obtained from the rheological data presented by Westover (20). Stoichiometric boundary condition for rapid irreversible reaction. We will consider such a case in the next example. Up to 6 undergraduate engineering credits earned at the 3000 level or higher may be applied toward both the bachelor’s and master’s degrees. Bedford, Fluid Mechanics, McGraw-Hill, New York, 9th ed. (1998), Chapter 8, and in M.

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