A Coupled Modelling Method for the Evaluation of the Impact of Pavement Solar Collector on Urban Air Temperature and Thermal Collection

• DOI: 10.5334/fce.109
• Publication Date: 2021-02-19T18:58:40Z
• Authors: Weijie Xu; Carlos Jimenez-Be...; Conrad Allan Jay ...; John Calautit; Yupeng Wu
• Keywords: Urban Heat Island

The Urban Heat Island (UHI) effect is a phenomenon whereby urban areas become warmer than their surrounding rural areas, due to the replacement of vegetation and soil with surfaces such as asphalt concrete. pavement tend absorb large amount heat through solar radiation increase air temperature, which affects operation building heating cooling systems, causing environmental problems thermal discomfort. However, this energy can be collected by water circulated buried copper pipes cool down temperatures stored for other usages. This work aims develop method determining optimum locate collector (PSC) systems simulate reduction ambient surface temperature using coupled computational modelling approach. Discrete ordinate model solar-ray tracing were utilised in 3D simulation. Furthermore, PSC prototype was developed, lab-scale experiments carried out validation. Based on simulated conditions, unshaded area, slab’s near-surface reduced up 10℃ outlet increased about 5℃. At pedestrian height level, 4.6℃. study further expands investigation variation outdoor conditions radiation. results showed that proposed could used optimise collector’s positioning reduce temperature.