Heat exchanger software

Saboo, A. K., Morari, M., and Colberg, R. D., RESHEX An Interactive Software Package for the Synthesis and Analysis of Resilient Heat Exchanger Networks II. Discussion of Area Targeting and Network Synthesis Algorithms, Computers Chem. Eng., 10 591, 1986. 

Heat Exchangers. Because a heat exchanger is a nearly universal item of process equipment, there is a wide variety of fast and capable software for such calculations. 

Computer software for heat exchanger design a limited listing (1997) (a) AEA Technology Engineering Software, Inc. (b) BJAC International (c) plus many others through AlChE publications. 

The formulation of objective functions is one of the crucial steps in the application of optimization to a practical problem. As discussed in Chapter 1, you must be able to translate a verbal statement or concept of the desired objective into mathematical terms. In the chemical industries, the objective function often is expressed in units of currency (e.g., U.S. dollars) because the goal of the enterprise is to minimize costs or maximize profits subject to a variety of constraints. In other cases the problem to be solved is the maximization of the yield of a component in a reactor, or minimization of the use of utilities in a heat exchanger network, or minimization of the volume of a packed column, or minimizing the differences between a model and some data, and so on. Keep in mind that when formulating the mathematical statement of the objective, functions that are more complex or more nonlinear are more difficult to solve in optimization. Fortunately, modem optimization software has improved to the point that problems involving many highly nonlinear functions can be solved. 

There is continuing rapid development in both the hardware and the software of the process heat exchanger industry. New types of heat exchangers appear from time to time, usually arrived at for solving a particular problem that is not quite properly or economically satisfied by existing equipment. Even in well-known types, growth... 

Figure 5. Experimental apparatus 1 - AG cylinder, 2 - electronic balance, 3 - insulated chamber, 4 - heat exchanger, 5 - thermostat, 6 - computer with software, 7, 10 - pressure sensors, 8, 16 — 19 — valves, 9 - calibrated volume, 11 - vacuum pump, 12 - hydrogen vessel, 13 - helium vessel, 14,15 - reducer, 20 - flow meter, 21,23 - thermocouples, 22 - Ians, 24 - sorbent bed, 25 - heat exchanger.

It is convenient to use typical values for preliminary design of heat exchangers. However, for detailed design, the rigorous methods should be employed. Fortunately there are several software packages available for this purpose. 

Reconsider Prob. 11-52. Using EES (or Other) software, investigate the effects of oil exit temperature and water inlet temperature on the overall heat transfer coefficient of the heat exchanger. Let the oil exit temperature vary from 30°C lo 1Q°C and the water inlet lem-perarure from 5"C to 25 C, Plot tlic overall heat transfer coefficient as functions of the two temperatures, and discuss the results. 

The CC-Therm software was used for the thermal heat exchangers including E-601 through E-612. 

The distillation column was simulated and designed with the CHEMCAD-SCDS method, also using the SRK equation of state. Reflux ratio for die distillation column was set at 1.2 Rnm- Plate efficiency of the valve trays was assumed to be 0.85. (Pooling water was available with an inlet temperature of 29°C and an exit temperature of 35°C. The CC-Therm software was used for the thermal and mechanical design of all the shell-and-tube heat exchangers. 

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