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https://www.youtube.com/watch?v=LlwffP5dHJg

On a terrace at Nanjing University of Aeronautics and Astronautics (NUAA), a seemingly ordinary space is the stage for a pioneering experiment in sustainable living. Here, sunlight is not merely a natural resource but a precisely managed commodity, thanks to a sophisticated fusion of engineering and smart control. This is the achievement of the Sunrim team: the Wall-Mounted Retractable Solar Greenhouse.

The Core Innovation: From Static Structure to Dynamic System

Traditional sunrooms are static structures, often leading to issues like overheating in summer and poor thermal retention in winter. Drawing inspiration from the principles of aerospace engineering—particularly in materials, structural mechanics, and control systems—the Sunrim team sought a dynamic solution. Their vision was to create a sunroom that could “breathe” and adapt.

This led to the core innovation: the retractable wall-mounted design. The system functions like a precise mechanical organism, whose roof and sections of the façade can extend or retract on command. When solar gain is desired, it unfolds completely to bathe the interior in light and warmth. When enclosure is needed, it retracts smoothly into a closed, secure configuration.

The Intelligent Control System: Automated Protocols for Safety and Precision

The true sophistication of this project lies in its integrated smart control system, which operates on predefined environmental protocols.

Protocol One: Hazard Mitigation
In the event of hazardous gas emissions detected by environmental sensors, safety becomes the paramount priority. Activating the “one-touch open” protocol triggers the system. The greenhouse panels retract fully, transforming the structure into an open, ventilated canopy. This rapid response prevents the accumulation of toxic air, ensuring the safety of occupants and demonstrating the system’s critical role in emergency environmental management.

Protocol Two: Precision Environment for Research
For sensitive optical experiments or applications requiring **total darkness**, the system executes a “one-touch close” command. The structure seals completely, with all moving parts locking into a closed position to block external light. Simultaneously, the integrated electric sunshade deploys, providing a secondary, physical light barrier. This dual-action ensures a “darkroom” environment, establishing a controlled setting for high-precision scientific work.

The Sustainable Vision: A New Chapter in Solar Utilization

The project’s foundational goal is the effective utilization of solar energy. This retractable design represents a paradigm shift in achieving it. By actively managing its own exposure, the greenhouse optimizes thermal performance year-round—maximizing solar heat gain in the winter and minimizing cooling loads in the summer. It is, in itself, a micro-scale, intelligently regulated green energy system, embodying the practical application of sustainable technology.

Conclusion: From University Terrace to Future Applications

This experiment at NUAA is more than a student project; it is a prototype for future adaptive architecture. It demonstrates how smart materials, kinetic structures, and IoT-based control can be merged to create spaces that actively respond to environmental and human needs.

The Sunrim team has orchestrated a symphony of sunlight and intelligence on their campus terrace. Their retractable solar greenhouse acts as a sophisticated instrument, learning to “orchestrate” sunlight for human benefit. It stands as a promising beacon for a future where our built environment is not just static, but intelligently interactive, sustainable, and secure.