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首页> 外文会议>International refrigeration and air conditioning conference at Purdue >Modular Simulation of Vapour Compression Systems with an Object- Oriented Tool
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Modular Simulation of Vapour Compression Systems with an Object- Oriented Tool

机译：面向对象工具的蒸汽压缩系统的模块化仿真

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摘要

The objective of this work is to simulate vapour compression refrigeration systems through a modular approach by means of an object-oriented numerical tool called NEST. For this purpose, the global system is modeled as a collection of different elements which are linked between them. Each element represents a specific part of the system (e.g. heat exchanger, compressor, expansion device, tube, cavity, wall, etc.) and can be independently solved for given boundary conditions. The global resolution procedure is carried out by solving all the elements iteratively, transferring information between them, until a converged solution is reached. The system is easily modified by adding, subtracting or substituting any of its elements. This feature gives great flexibility to the model, not only because the configuration of the system can be clearly altered, but also because the numerical model of any element can be easily replaced allowing different levels of simulation. In this work the object-oriented methodology together with the elements description and their resolution procedures are presented. The model is validated against experimental data obtained from a refrigeration cycle working with isobutane. In addition to this, an illustrative case is presented in order to show the system capabilities.
机译：这项工作的目的是通过一种称为NEST的面向对象的数值工具，通过模块化方法来模拟蒸汽压缩制冷系统。为此，将全局系统建模为在它们之间链接的不同元素的集合。每个元素代表系统的特定部分（例如，热交换器，压缩机，膨胀装置，管，腔，壁等），并且可以针对给定的边界条件独立求解。全局解析过程是通过迭代求解所有元素，在它们之间传递信息直到达成收敛的解决方案来执行的。通过添加，减去或替换其任何元素，可以轻松修改该系统。此功能为模型提供了极大的灵活性，这不仅是因为可以清楚地更改系统的配置，而且还因为可以轻松替换任何元素的数值模型，从而允许进行不同级别的仿真。在这项工作中，介绍了面向对象的方法以及元素描述及其解决程序。该模型针对从使用异丁烷的制冷循环中获得的实验数据进行了验证。除此之外，为了说明系统功能，还提供了一个示例性案例。

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