Aspen Plus 基础知识自学指南

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"Aspen Plus基本教学" Aspen Plus是化工行业中广泛使用的流程模拟软件，能够帮助化工工程师设计、优化和模拟化工过程。在本文中，我们将从基本概念开始，详细介绍Aspen Plus的基本原理、应用领域和使用方法。 **什么是Aspen Plus？** Aspen Plus是一款流程模拟软件，旨在帮助化工工程师设计、优化和模拟化工过程。该软件可以模拟多种化工过程，包括反应、分离、热交换、流体流动等。 **Aspen Plus的应用领域** Aspen Plus广泛应用于化工行业，包括： * 化工过程设计：Aspen Plus可以帮助化工工程师设计和优化化工过程，提高生产效率和产品质量。 * 过程模拟：Aspen Plus可以模拟化工过程，预测生产结果，帮助化工工程师优化生产过程。 * 过程优化：Aspen Plus可以帮助化工工程师优化化工过程，提高生产效率和产品质量。 **Aspen Plus的基本原理** Aspen Plus基于化学工程学和数学模型，使用数学算法来模拟化工过程。该软件可以模拟多种化工过程，包括反应、分离、热交换、流体流动等。 **Aspen Plus的使用方法** Aspen Plus的使用方法包括： * 建立流程模型：使用Aspen Plus建立流程模型，定义流程参数和操作条件。 * 模拟流程：使用Aspen Plus模拟流程，预测生产结果。 * 优化流程：使用Aspen Plus优化流程，提高生产效率和产品质量。 **Aspen Plus在化工行业中的应用** Aspen Plus广泛应用于化工行业，包括： * 石油化工：Aspen Plus可以模拟石油化工过程，预测生产结果，帮助化工工程师优化生产过程。 * 化学工业：Aspen Plus可以模拟化学工业过程，预测生产结果，帮助化工工程师优化生产过程。 * 制药工业：Aspen Plus可以模拟制药工业过程，预测生产结果，帮助化工工程师优化生产过程。 **结论** Aspen Plus是一款功能强大且广泛应用于化工行业的流程模拟软件。该软件可以帮助化工工程师设计、优化和模拟化工过程，提高生产效率和产品质量。通过学习Aspen Plus的基本原理和使用方法，化工工程师可以更好地应用该软件，提高工作效率和生产质量。

4 INTRODUCTION TO ASPEN PLUS

Figure 1.3 Connecting streams.

cursor over an open port and clicking. An example of connecting streams to ports is

shown in Figure 1.3.

All icons, block names, and stream names can be selected and moved using standard

Windows techniques. Similarly, streams can be moved, rerouted, disconnected, and

reconnected. Selecting and right-clicking on any of the objects displays a menu that

provides many useful functions for manipulating the graphics. These include changing

icons, rotating objects, renaming, deleting, and aligning the graphics.

1.3 NEXT BUTTON

Aspen Plus provides the user with a mechanism for ﬁlling out forms in an orderly

fashion. At any point after the ﬂowsheet has been fully deﬁned with the GUI, the

user may select the Next button, which a ppears as the symbol N → on all forms.

The Next button moves to the next form required. On occasion, after using the Next

button, Aspen Plus will prompt the user to select from a choice of actions to be taken.

The Next button provides only the minimum required input. As an example, when an

activity coefﬁcient equation to be used in the simulation is chosen, Aspen Plus will use

6 INTRODUCTION TO ASPEN PLUS

1. Data regression: ﬁtting data to models

2. Flowsheet: process simulation

3. Property display: showing properties of a component in Aspen Plus’s database

4. Property analysis: estimating physical and thermodynamic properties

5. Assay data analysis

6. Property plus

The last two functions are not considered here. The user selects the required function

to initiate data input for a speciﬁc requirement.

Note that the Data Browser panel shows a blue check next to various items. This

indicates that the default values are sufﬁcient to proceed with data input; however, this

is the minimum data required and the values may be modiﬁed to meet the requirements

for any problem. The red elements on the browser panel list indicate that user input

is required. A red element may be deleted by right-clicking on it and selecting Delete

from the menu that appears, or if Aspen Plus permits, and sometimes by using the

Windows delete key.

There are drop-down lists for all the categories in the data-entry boxes under the

Global tab, and all may be changed. For e xample, the value Mole has been selected for

the option Flow basis. Additionally, under units of measurement, the input and output

units have engineering (ENG) as default values, while the associated drop-down list

offers Metric and SI units as other possibilities.

Aspen Plus provides a Help button, on the topmost menu, for accessing information

by subject. Additionally, help with any entry on any display is available by moving

the cursor to the entry and pushing F1 or selecting the ? button on the tool bar.

1.5 SIMULATION OPTIONS

If the Simulation Options category is selected, the Simulation Options display shown

in Figure 1.5 appears. All of the default values that appear under the various tabs need

not be changed except under the tab Calculations, where the option not to use energy

balances in the calculations is available. This is an important option for preliminary

calculations. If simulations do not involve solids or electrolytes, the appropriate options

may be unchecked.

1.6 UNITS

Aspen Plus provides a user with a choice of units: engineering, metric, and the inter-

national system of units, SI. An important option is the ability to select mixed units;

for example, the choice of engineering units with mmHg and degrees C as temperature

and pressure is not uncommon in some pharmaceutical applications. To accomplish

this, Units-Sets is selected from the Data Browser menu, which produces the Object

Manager shown in Figure 1.6. Then, selecting New produces an Identiﬁer for the new

unit set, in this case US-1, and a choice as to whether or not to assign this as a global

data set. Then Figure 1.7 appears.

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