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首页> 外文期刊>Building and Environment >A PMV-based HVAC control strategy for office rooms subjected to solar radiation
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A PMV-based HVAC control strategy for office rooms subjected to solar radiation

机译：用于经过太阳辐射的办公室的基于PMV的HVAC控制策略

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摘要

The user comfort and energy consumption become two conflicting subjectives leading to pareto-optimal control fronts when designing HVAC systems. Although, indoor air temperature has been extensively used as a primary parameter of HVAC control for many years, it is unable to precisely or fully reflect the perceived thermal comfort. And the set-points of thermal comfort sensors for the conditioned space are generally installed far away from occupants, making them unable to detect real occupant sensations. Computational Fluid Dynamics (CFD) simulations can be used to assist with developing the thermal comfort control strategies.A comparative simulation study between the thermal comfort (Predicted Mean Vote, PMV-based) control and conventional temperature (Temperature-based) control is conducted in a typical glazed office room subjected to solar radiation for the entire occupied time of a day. To achieve the control target of ISO 7730 comfort zone, an iterative procedure was developed to estimate the flow rate of the supply air. The air temperature field and ventilation performance in the work plate and the plate crossing through the middle of the office room were shown in two control strategies by CFD. The thermal environment indices (vertical air temperature difference and draught) and energy saving are analyzed and compared under two control strategies. The results demonstrate that the PMV-based control could provide better thermal comfort in highly glazed office room and it still shows a savings of 1.6% per day of energy usage.
机译：在设计HVAC系统时，用户的舒适度和能耗成为导致ParoTo-Optimal Control Forts的两个冲突的主题。虽然，室内空气温度已被广泛用作HVAC控制的主要参数多年来，但它无法精确地或充分反映感知的热舒适度。和条件空间的热舒适传感器的设定点通常安装远离乘员，使其无法检测到真正的乘员感。计算流体动力学（CFD）模拟可用于帮助开发热舒适控制策略。在热舒适度（预测平均投票，PMV的）控制和常规温度（基于温度）控制之间进行比较模拟研究一个典型的玻璃房间，为整个占用时间进行太阳辐射。为了实现ISO 7730舒适区的控制目标，开发了一种迭代程序来估计供应空气的流速。通过CFD的两种控制策略显示了工作板中的空气温度场和通风性能，并通过办公室中间穿过办公室中间。分析了热环境指数（垂直空气温差和草案）和节能在两种控制策略下进行了比较。结果表明，基于PMV的控制可以在高度玻璃的办公室室内提供更好的热舒适度，并且仍然节省了每天能源使用1.6％的节省。

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  • 来源
    《Building and Environment》 |2020年第6期|106863.1-106863.10|共10页
  • 作者

    Wu Jing; Li Xiangdong; Lin Yang; Yan Yihuan; Tu Jiyuan;

  • 作者单位

    Fujian Univ Technol Coll Ecol Environm & Urban Construct Fuzhou 350118 Fujian Peoples R China|RMIT Univ Sch Engn POB 71 Bundoora Vic 3083 Australia;

    RMIT Univ Sch Engn POB 71 Bundoora Vic 3083 Australia;

    RMIT Univ Sch Engn POB 71 Bundoora Vic 3083 Australia;

    RMIT Univ Sch Engn POB 71 Bundoora Vic 3083 Australia;

    RMIT Univ Sch Engn POB 71 Bundoora Vic 3083 Australia|Tsinghua Univ Sch Architecture POB 2021 Beijing 100084 Peoples R China;

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

    Control strategy; Solar radiation; Predicted mean vote (PMV); Thermal comfort; Energy saving;

    机译：控制策略;太阳辐射;预测平均投票（PMV）;热舒适;节能;

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