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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Coupling short-term (B2G model) and long-term (g-function) models for ground source heat exchanger simulation in TRNSYS. Application in a real installation
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Coupling short-term (B2G model) and long-term (g-function) models for ground source heat exchanger simulation in TRNSYS. Application in a real installation

机译：在TRNSYS中耦合短期模型（B2G模型）和长期模型（g函数），以进行地源热交换器模拟。实际安装中的应用

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Ground-source heat pump (GSHP) systems represent one of the most promising techniques for heating and cooling in buildings. These systems use the ground as a heat source/sink, allowing a better efficiency thanks to the low variations of the ground temperature along the seasons. The ground-source heat exchanger (GSHE) then becomes a key component for optimizing the overall performance of the system. Moreover, the short-term response related to the dynamic behaviour of the GSHE is a crucial aspect, especially from a regulation criteria perspective in on/off controlled GSHP systems. In this context, a novel numerical GSHE model has been developed at the Institute de Ingenieria Energetica, Universitat Politecnica de Valencia. Based on the decoupling of the short-term and the long-term response of the GSHE, the novel model allows the use of faster and more precise models on both sides. In particular, the short-term model considered is the B2G model, developed and validated in previous research works conducted at the Institute de Ingenieria Energetica. For the long-term, the g-function model was selected, since it is a previously validated and widely used model, and presents some interesting features that are useful for its combination with the B2G model. The aim of the present paper is to describe the procedure of combining these two models in order to obtain a unique complete GSHE model far both short-and long-term simulation. The resulting model is then validated against experimental data from a real GSHP installation. (C) 2016 Elsevier Ltd. All rights reserved.
机译：地源热泵（GSHP）系统是建筑物供暖和制冷的最有前途的技术之一。这些系统使用地面作为热源/散热片，由于地面温度随季节的变化很小，因此效率更高。然后，地源热交换器（GSHE）成为优化系统整体性能的关键组件。此外，与GSHE动态行为相关的短期响应是至关重要的方面，尤其是从开/关控制的GSHP系统中的调节标准角度来看。在这种情况下，瓦伦西亚大学理工学院能源研究所已经开发了一种新型的数值GSHE模型。基于GSHE的短期和长期响应的解耦，新模型允许在两侧使用更快更精确的模型。特别是，考虑的短期模型是B2G模型，该模型是在Energetica研究所进行的先前研究工作中开发和验证的。从长远来看，选择了g函数模型，因为它是先前已验证并广泛使用的模型，并提供了一些有趣的功能，这些功能对于将其与B2G模型结合起来很有用。本文的目的是描述结合这两个模型的过程，以便获得无论短期还是长期模拟都唯一的完整GSHE模型。然后，根据实际GSHP安装中的实验数据对生成的模型进行验证。 （C）2016 Elsevier Ltd.保留所有权利。

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