Abstract
This study explores the relationship between the morphology and solar potential of high-density areas in the subtropics high density city known as Shanghai. 1260 parametric scenarios were modeled and their solar irradiation potentials were simulated via a customized workflow. In addition to the five well-known morphological parameters, this study proposed two innovative morphological parameters SSU600 and SSU400, which captured the solar receiving properties of the building envelopes and could be easily calculated based on the meteorological data. For analytical purposes, the previously morphological parameters were considered as independent variables, whereas the new solar performance indicators SRU600 and SRU400 were both examined as dependent variables. The correlation analysis results suggested that the new morphological parameters displayed a strong linear correlation with the corresponding solar performance indicators, surpassing all the other morphological parameters. Two prediction models with respect to SRU600 and SRU400 were developed by multiple linear regressions using a stepwise method and their validity was verified by real residential cases. The findings provide key morphological parameters and rapid calculation tools for establishing solar energy friendly urban planning and design.
Highlights
The results showed that only when the building density reached a certain level and the building was south-facing, the building form would have a significant effect on the amount of solar irradiation receiving by building facade
It should be noted that the influence of the Floor area area ratioratio (FAR) and Gross floorfloor areaarea (GFA) were identical, due to the existingU600 andmathematical morphological parameters of the 1260 scenarios
This paper takes Shanghai as an example to study the relationship between the morphological parameters and the solar potential performance indicators of high-density residential areas
Summary
More than 50% of the world’s population lives in cities, and this proportion is likely to grow up to 70% by 2050. Energy resource is a crucial necessity for urban development and the demand for energy is increasing with the development of urbanization. 74% of energy-related global greenhouse gases in 2030 [1]. As a kind of clean and abundant renewable energy source, has become the most applicable and suitable renewable energy source in cities with fast technological improvement, owing its related cost reductions and the public’s growing acceptance [2]. Using buildings’ surfaces to establish a distributed solar energy system can reduce land occupation and energy loss due to long-distance loosening, which is an effective way to meet cities’
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