在热带气候城市为公交车站候车亭配备冷却和过滤系统的效果

IF 3.5 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Smart and Sustainable Built Environment Pub Date : 2023-08-29 DOI:10.1108/sasbe-03-2023-0063
E. Velasco, E. Segovia
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引用次数: 0

摘要

目的等公交车可能代表在街道上炎热嘈杂的环境中强烈暴露在交通颗粒物中的一段时间。为了减少颗粒物负荷和解决公交车站的热问题,候车亭配备了静电除尘器和三级绝热冷却系统,该系统能够根据实际情况动态调整其运行。这项研究评估了Airbitat Oasis智能公交车站提供清洁凉爽空气的有效性。设计/方法/方法将这个创新避难所中的颗粒物暴露与旁边的传统避难所中的暴露进行对比。在两个避难所中同时测量了细颗粒物和炭黑的质量浓度以及颗粒物数量浓度(作为超细颗粒物的代表)。还测量了空气温度、相对湿度和噪音水平。发现新的避难所没有达到预期的效果。它只略微降低了细颗粒的丰度(−6.5%),但没有降低超细颗粒和炭黑的丰度。同样,它降低了空气温度(−1°C),但增加了相对湿度(3%)。它的操作没有产生额外的噪音。实际意义避难所性能不佳可能是由于缺乏对城市环境中交通颗粒和流体动力学的了解而导致的设计缺陷。这是一个在不了解要解决的问题的情况下利用技术是行不通的例子。原创性/价值很少会遇到像这样的案例研究,其中可以在现实服务环境下评估城市基础设施的性能和有效性。
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Effectiveness of equipping bus stop shelters with cooling and filtering systems in a city with tropical climate
PurposeWaiting for a bus may represent a period of intense exposure to traffic particles in hot and noisy conditions in the street. To lessen the particle load and tackle heat in bus stops a shelter was equipped with an electrostatic precipitator and a three-step adiabatic cooling system capable of dynamically adjust its operation according to actual conditions. This study evaluates the effectiveness of the Airbitat Oasis Smart Bus Stop, as the shelter was called, to provide clean and cool air.Design/methodology/approachThe particle exposure experienced in this innovative shelter was contrasted with that in a conventional shelter located right next to it. Mass concentrations of fine particles and black carbon, and particle number concentration (as a proxy of ultrafine particles) were simultaneously measured in both shelters. Air temperature, relative humidity and noise level were also measured.FindingsThe new shelter did not perform as expected. It only slightly reduced the abundance of fine particles (−6.5%), but not of ultrafine particles and black carbon. Similarly, it reduced air temperature (−1 °C), but increased relative humidity (3%). Its operation did not generate additional noise.Practical implicationsThe shelter's poor performance was presumably due to design flaws induced by a lack of knowledge on traffic particles and fluid dynamics in urban environments. This is an example where harnessing technology without understanding the problem to solve does not work.Originality/valueIt is uncommon to come across case studies like this one in which the performance and effectiveness of urban infrastructure can be assessed under real-life service settings.
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来源期刊
Smart and Sustainable Built Environment
Smart and Sustainable Built Environment GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-
CiteScore
9.20
自引率
8.30%
发文量
53
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