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首页> 外文期刊>Building and Environment >Energy saving potential and repercussions on indoor air quality of demand controlled residential ventilation strategies
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Energy saving potential and repercussions on indoor air quality of demand controlled residential ventilation strategies

机译：需求控制住宅通风策略的节能潜力及对室内空气质量的影响

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摘要

Ventilation is ambiguously related to the energy saving rationale originating from the mitigation of global warming, the reaching of peak oil or health concerns related to fossil fuel burning. Since it makes up for about half of the energy consumption in well-insulated buildings, it is an attractive target for energy saving measures. However, simply reducing ventilation rates has unwanted repercussions on the indoor air quality. Two main strategies have been developed to reconcile these seemingly opposing interests: heat recovery and demand control ventilation. This paper focuses on the energy saving potential of demand controlled mechanical exhaust ventilation in residences and on the influence such systems may have on the indoor air quality to which the occupants of the dwellings are exposed. The conclusions are based on simulations done with a multi-zone airflow model of a detached house that is statistically representative for the average Belgian dwelling. Four approaches to demand based control are tested and reported. Within the paper exposure to carbon dioxide and to a tracer gas are used as indicators for indoor air quality. Both energy demand and exposures are reported and compared to the results for a standard, building code compliant, exhaust system, operating at continuous flow rates. The sensitivity of the control strategies to environmental and user variations is tested using Monte-Carlo techniques. Under the conditions that were applied, reductions on the ventilation heat loss of 25-60% are found, depending on the chosen control strategy (with the exclusion of adventitious ventilation and infiltration).
机译：通风与节约能源的原理有二义性关系，其源于缓解全球变暖，达到峰值石油或与化石燃料燃烧有关的健康问题。由于它占据了隔热良好的建筑物中约一半的能耗，因此它是节能措施的一个有吸引力的目标。但是，简单地降低通风量会对室内空气质量产生不良影响。已经开发出两种主要策略来调和这些看似相反的利益：热量回收和需求控制通风。本文着重于住宅中按需控制的机械排气通风的节能潜力，以及这种系统对住宅居住者所暴露的室内空气质量的影响。这些结论基于对独立式住宅的多区域气流模型进行的模拟，该模型在统计学上代表了比利时的平均住宅。测试并报告了四种基于需求的控制方法。在纸张中，暴露于二氧化碳和示踪气体中作为室内空气质量的指标。报告能源需求和暴露，并将其与以连续流量运行的标准，符合建筑规范的排气系统的结果进行比较。使用蒙特卡洛技术测试了控制策略对环境和用户变化的敏感性。在所应用的条件下，根据选择的控制策略（不包括不定通风和渗透），发现通风热量损失减少了25-60％。

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  • 来源
    《Building and Environment》 |2011年第7期|p.1497-1503|共7页
  • 作者

    J. Laverge; N. Van Den Bossche; N. Heijmans; A. Janssens;

  • 作者单位

    Ghent University, Department of Architecture and Urban Planning, Jozef Plateaustraat 22, Cent, Belgium;

    Ghent University, Department of Architecture and Urban Planning, Jozef Plateaustraat 22, Cent, Belgium;

    Belgian Building Research Institute, Avenue P. Holoffe 21, Limelette, Belgium;

    Ghent University, Department of Architecture and Urban Planning, Jozef Plateaustraat 22, Cent, Belgium;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    demand control; residential ventilation; monte-carlo; iaq;

    机译：需求控制;住宅通风;蒙特卡洛;室内空气质量;

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