The feasibility of highly granular lighting control in open-plan offices: Exploring the comfort and energy saving potential
The feasibility of highly granular lighting control in open-plan offices: Exploring the comfort and energy saving potential
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DOI：
10.1016/j.buildenv.2018.06.043
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发表时间：
2018-09-01
影响因子：
7.4
通讯作者：
Rosemann, Alexander
中科院分区：
文献类型：
--
作者：
de Bakker, Christel;Aarts, Marielle;Rosemann, Alexander
高度精细的照明控制通过自动控制无人办公桌的照明，减少了共享办公空间的能源消耗。通常，照明是关闭的，但这种方法会导致不均匀的照度分布。在办公室里，单独的工作区域通常没有隔墙隔开，而且办公人员要监督整个办公空间，昏暗的方式可能会更舒适。因此，本研究测试了一个新概念的可行性，该概念涉及在任务，周围和背景区域使用不同的调光水平。我们通过在受控环境中的用户研究（最终N = 25）来评估用户舒适度和能源使用这两个概念。从这项工作中，我们得出结论，大多数用户（68-84%）对整个工作空间的不同调光水平感到满意。基于假定的活动模式的初始能量计算显示，在四种最极端的变暗情景下（LDP减少26%），结果很有希望。我们确定了两种最有希望实现节能和舒适的条件，即当办公空间背景区域的调光水平最低时。这些发现鼓励继续研究基于个人占用的调光，因为它在日益智能的办公环境中具有很高的实用价值。
Highly granular lighting control reduces the energy consumption of shared office spaces by automatically controlling lighting at unoccupied desks. Typically, lighting is switched off, but this approach results in non-uniform illuminance distributions. In offices where individual work areas are often not separated by partitions and occupants oversee the entire office space, a dimming approach might be more comfortable. Therefore, this study tests the feasibility of a new concept that involves the use of different dimming levels in the task, surrounding, and background area. We evaluated this concept on both user comfort and the energy use through a user study in a controlled environment (final N = 25). From this work, we concluded that most users (68-84%) are comfortable with different dimming levels throughout a workspace. Initial energy calculations based on assumed activity patterns showed promising results for the four most extreme dimming scenarios (LDP reduction > 26%). We identified two conditions as most promising in achieving both energy savings and comfort, namely when the dimming level was at minimum in the background area of the office space. These findings encourage research to continue investigating individual occupancy-based dimming as it has high practical value in the increasing smart office environment.