Integrating biomimetic vertical greening systems with plant-cell-inspired design for urban cooling and energy efficiency: A case study in Suzhou

Abstract

This study investigates the integration of plant-cell morphological bionics into vertical greening systems to enhance thermal performance and environmental sustainability in urban architecture, with a focus on Suzhou, Jiangsu Province. Drawing inspiration from the honeycomb-like structure of plant cells, which are known for their exceptional strength-to-weight ratio and efficient material usage, we introduce a biomimetic façade system. This system uses hexagonal modules that mimic plant cell geometry, supporting locally adapted climbing vegetation to mitigate urban heat island effects. Advanced computational design tools were employed to optimize the system’s structural efficiency and cooling performance, tailoring it to the subtropical monsoon climate and rich architectural heritage of the region. Over a two-month experimental period during the peak summer season, the system demonstrated a significant reduction in surface temperatures, averaging a daily cooling effect of −5.4 ℃ and reaching a maximum reduction of −10.2 ℃ during peak solar radiation. Heat flux calculations and statistical analyses confirmed the system’s enhanced thermal regulation capabilities, leading to reduced heat transfer and energy consumption. The findings highlight the biomimetic system’s potential to harmonize contemporary building designs with traditional aesthetics, addressing urban sustainability challenges while preserving cultural continuity. Future research recommendations include year-round performance evaluations, material innovations, and scalability assessments in high-density urban areas to further validate and refine this promising approach.