In this research paper, an analysis is developed on the performance of a hybrid ventilation system that combines Earth-to-Air Heat eXchangers (EAHX), free cooling and evaporative cooling Air Handling Unit Heat eXchanger (AHU-HX), all being controlled by a Building Management System (BMS) in a net Zero Energy Building (nZEB), called LUCIA. LUCIA nZEB is the first safe-building against Covid-19 in the world, certified by the international organisation WOSHIE, and located in Valladolid, Spain. The main aim is to optimize the performance of the three systems in such a way that the Indoor Air Quality (IAQ) levels remain within the allowable limits, while maximizing the use of natural resources and minimizing energy consumption and carbon emissions. The approach to satisfy the heating and cooling demand and IAQ levels through zero emissions energy systems is developed, thus anticipating the zero-energy target, set by the European Union for 2050. Results showed that the installed hybrid ventilation system uses heat exchangers for 70% of the operational time, in order to achieve the set parameters successfully. Also, the analysis made by monitoring data, have shown that the control and optimal operation of the hybrid ventilation system allows high energy recovery values with minimum additional electricity consumption. Significant reduction of carbon emissions and operational costs have been achieved.

中文翻译：

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近零能耗建筑混合通风系统性能分析

在本研究论文中，对混合通风系统的性能进行了分析，该系统结合了地对空换热器 (EAHX)、自然冷却和蒸发冷却空气处理单元换热器 (AHU-HX)，所有这些都由控制净零能耗建筑 (nZEB) 中的建筑管理系统 (BMS)，称为 LUCIA。LUCIA nZEB 是世界上第一个针对 Covid-19 的安全建筑，已获得国际组织 WOSHIE 的认证，位于西班牙巴利亚多利德。主要目标是优化三个系统的性能，使室内空气质量 (IAQ) 水平保持在允许的范围内，同时最大限度地利用自然资源并最大限度地减少能源消耗和碳排放。开发了通过零排放能源系统满足供暖和制冷需求和室内空气质量水平的方法，从而预测了欧盟设定的 2050 年零能源目标。结果表明，安装的混合通风系统 70% 使用热交换器的运行时间，以成功达到设定的参数。此外，通过监测数据进行的分析表明，混合通风系统的控制和优化运行可实现高能量回收值，同时将额外的电力消耗降至最低。已经实现了碳排放和运营成本的显着减少。结果表明，安装的混合通风系统在 70% 的运行时间内使用热交换器，以成功达到设定的参数。此外，通过监测数据进行的分析表明，混合通风系统的控制和优化运行可实现高能量回收值，同时将额外的电力消耗降至最低。已经实现了碳排放和运营成本的显着减少。结果表明，安装的混合通风系统在 70% 的运行时间内使用热交换器，以成功达到设定的参数。此外，通过监测数据进行的分析表明，混合通风系统的控制和优化运行可实现高能量回收值，同时将额外的电力消耗降至最低。已经实现了碳排放和运营成本的显着减少。