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首页> 外文期刊>Building and Environment >Comparing the indoor environmental quality of a displacement ventilation and passive chilled beam application to conventional air-conditioning in the Tropics
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Comparing the indoor environmental quality of a displacement ventilation and passive chilled beam application to conventional air-conditioning in the Tropics

机译：将置换通风和被动冷梁应用与热带地区传统空调的室内环境质量进行比较

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摘要

The satisfaction of occupants with an indoor environment supplied by a conventional central VAV air-conditioning system was compared to a novel system represented by decentralized ventilation units and a network of passive chilled beams. In parallel with occupant survey measurement of indoor air quality (IAQ) parameters was conducted with the developed wireless IAQ sensing kits. The same occupant cohort was surveyed for both systems, as occupants of the conventionally-conditioning office, known as the 'Previous Office' later moved into the office conditioned by the novel system, known as the '3for2 Office'. We observed that the perceived thermal comfort and air quality satisfaction of the occupants were markedly higher in the 3for2 Office than in the Previous Office. While occupants of the 3for2 Office could raise or lower indoor air temperatures, they appeared to be consistently satisfied with higher indoor air temperatures than that set by the building management of the Previous Office. The primarily Singaporean occupants of the 3for2 Office also felt thermally comfortable even when indoor air velocities in the office were measured to be below 0.1 m/s recommended by Singaporean Standards. The 3for2 Office's ventilation system was designed to supply outdoor air beyond minimal required ventilation rates, which lead to relatively low levels of CO2 and PM2.5 concentrations in the 3for2 office. We believe that higher ventilation rates resulting in lower pollutant concentrations are responsible for a higher-than-average survey score on air quality satisfaction. We also believe that enabling occupants to set air temperature in the space resulted in higher-than-average thermal comfort satisfaction.
机译：将传统中央VAV空调系统提供的室内环境对乘员的满意度与以分散式通风装置和被动冷梁网络为代表的新型系统进行了比较。与乘员调查同时，使用开发的无线IAQ感应套件进行了室内空气质量（IAQ）参数的测量。两种系统都调查了相同的居住者队列，这是被称为“以前的办公室”的具有常规条件的办公室的居住者后来转移到被称为“ 3for2办公室”的新型系统所约束的办公室中。我们观察到，在3for2办公室中，乘员感觉到的热舒适性和空气质量满意度显着高于上一个办公室。虽然3for2办公室的居民可以提高或降低室内空气温度，但他们似乎始终对室内空气温度高于上一办公室的建筑物管理部门所设定的水平感到满意。 3for2办公室的主要新加坡居民也感到热舒适，即使办公室的室内空气速度被测量低于新加坡标准建议的0.1 m / s。 3for2办公室的通风系统旨在提供超出最低要求通风率的室外空气，这导致3for2办公室的二氧化碳和PM2.5浓度相对较低。我们认为较高的通风速度导致较低的污染物浓度是导致空气质量满意度高于平均水平的调查得分的原因。我们还相信，使乘员能够设定空间中的空气温度会带来高于平均水平的热舒适性满意度。

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