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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：具有面向对象工具的蒸汽压缩系统的模块化模拟

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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名为Nest的面向对象的数值工具来模拟蒸汽压缩制冷系统通过模块化方法。为此，全局系统被建模为与它们之间链接的不同元素的集合。每个元件表示系统的特定部分（例如，热交换器，压缩机，膨胀装置，管，腔，壁等），并且可以独立地解决，以便给定边界条件。通过迭代地解决所有元素，在达到融合解决方案之前，通过解决所有元素来执行全局解决程序。通过添加，减去或替换其任何元素来容易修改系统。此功能对模型提供了极大的灵活性，不仅是因为系统的配置可以清晰地改变，而且因为可以容易地更换任何元素的数值模型，允许不同的模拟水平。在此工作中，介绍了面向对象的方法以及元素描述和分辨率的方法。该模型针对由用异丁烷的制冷循环获得的实验数据验证。除此之外，还提出了一种说明性案例以显示系统能力。

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