Cool surface technologies, urban vegetation, and their effects on energy and air quality in Canadian climates

冷表面技术、城市植被及其对加拿大气候中能源和空气质量的影响

• 批准号: RGPIN-2015-06195
• 负责人: Akbari, Hashem
• 金额: $ 1.82万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=636576
• 关键词: Cool; surface; technologies; urban; vegetation

During the summer, cool roofs reflect most of the incoming sunshine and reduce heat conduction through roofs. Similarly, strategically placed trees, shading windows and walls of a building reduce the direct heat gain. The reduction in summer heat gains reduces the air-conditioning load of a building, improves comfort, saves peak demand electricity, and save money. During the winter, cool roofs and shade trees may add to the heating load of a building, however, the heating energy penalties are fairly small (trees can actually save heating energy bills by shielding a building from cold wind).

在夏季，凉爽的屋顶反映了大部分传入的阳光，并减少了通过屋顶传导的热量。同样，策略上放置的树木，建筑物的阴影窗户和墙壁减少了直接的热量增益。夏季热量的减少减少了建筑物的空调负荷，改善舒适度，节省了高峰需求电力并节省了资金。在冬季，凉爽的屋顶和阴影树可能会增加建筑物的加热负荷，但是，加热能量的惩罚相当小（树木实际上可以通过将建筑物免受冷风来节省加热能量账单）。