Modelling a Damper-Optimized Demand Control Ventilation System During a Fire

IF 2.4 3区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Fire Technology Pub Date : 2025-04-29 DOI:10.1007/s10694-025-01736-8

Christoph Meraner, Jason Floyd, Dushyant M. Chaudhari, Tarek Beji, Janne Siren Fjærestad

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Abstract

Modern heating, ventilation, and air conditioning (HVAC) systems have evolved from simple on-off, fan-driven systems to highly complex, energy-optimized systems involving sensors monitoring the building whose outputs result in dynamic changes to the HVAC system operation. In some buildings, the HVAC system is intended to aid in smoke and pressure control during the event of a fire. In such a case, the smoke, heat, and pressure from fire growth and spread interact with the HVAC system, while the control logic may react to the fire alarm and increase ventilation rates. A series of tests investigating the performance of modern damper-optimized demand control ventilation (DCV) systems during a fire and its effect on smoke and pressure control was recently performed. This paper examines the ability of Fire Dynamics Simulator (FDS) to model a DCV HVAC system undergoing a dynamic response change due to the presence of fire. Results show that the FDS HVAC model is capable of such simulations. However, there were challenges in the modelling process due to the limitations on the experimental data obtained from the real-world building management system software. A path forward for more complete simulations is identified.

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火灾中阻尼优化的需求控制通风系统建模

现代供暖、通风和空调（HVAC）系统已经从简单的开关、风扇驱动系统发展到高度复杂的、能源优化的系统，其中包括监测建筑物的传感器，其输出导致HVAC系统运行的动态变化。在一些建筑物中，暖通空调系统的目的是在发生火灾时帮助控制烟雾和压力。在这种情况下，火灾生长和蔓延产生的烟雾、热量和压力与暖通空调系统相互作用，而控制逻辑可能对火灾报警作出反应并增加通风率。最近进行了一系列试验，研究了现代阻尼器优化需求控制通风系统在火灾中的性能及其对烟雾和压力控制的影响。本文研究了火灾动力学模拟器（FDS）对由于火灾而发生动态响应变化的直流暖通空调系统进行建模的能力。结果表明，FDS暖通空调模型能够实现上述仿真。然而，由于从实际建筑管理系统软件中获得的实验数据的限制，在建模过程中存在挑战。为更完整的模拟指明了前进的道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fire Technology 工程技术-材料科学：综合

CiteScore

6.60

自引率

14.70%

发文量

137

审稿时长

7.5 months

期刊介绍： Fire Technology publishes original contributions, both theoretical and empirical, that contribute to the solution of problems in fire safety science and engineering. It is the leading journal in the field, publishing applied research dealing with the full range of actual and potential fire hazards facing humans and the environment. It covers the entire domain of fire safety science and engineering problems relevant in industrial, operational, cultural, and environmental applications, including modeling, testing, detection, suppression, human behavior, wildfires, structures, and risk analysis. The aim of Fire Technology is to push forward the frontiers of knowledge and technology by encouraging interdisciplinary communication of significant technical developments in fire protection and subjects of scientific interest to the fire protection community at large. It is published in conjunction with the National Fire Protection Association (NFPA) and the Society of Fire Protection Engineers (SFPE). The mission of NFPA is to help save lives and reduce loss with information, knowledge, and passion. The mission of SFPE is advancing the science and practice of fire protection engineering internationally.