Zhejiang Runhui New Material Co., Ltd.
Zhejiang Runhui New Material Co., Ltd., headquartered in Zhejiang Province, China, is a leading developer of advanced insulation materials, specializing in aerogel-based solutions for diverse industries. Established with a focus on sustainable innovation, the company has built a robust R&D ecosystem through partnerships with Zhejiang's key research institutions. This collaboration drives the development of high-performance aerogel products, which combine nanostructured silica aerogel with inorganic or mineral fibers to deliver exceptional thermal insulation, lightweight design, and durability.
Runhui's Aerogel Panel, a flagship product, is engineered to address critical challenges in modern construction. While primarily recognized for its thermal insulation capabilities, the panel's ultra-low thermal conductivity, fire resistance, and moisture resistance-make it an ideal candidate for photovoltaic building integration (BIPV). By integrating aerogel technology with solar energy systems, Runhui is redefining how buildings generate and conserve energy, aligning with global goals for carbon neutrality.
photovoltaic building integration (BIPV)
Photovoltaic building integration (BIPV) refers to the seamless incorporation of solar photovoltaic (PV) systems into a building's structure, transforming roofs, walls, and windows into energy-generating components. Unlike traditional rooftop solar panels, BIPV systems serve a dual purpose: they produce electricity while maintaining the building's aesthetic and functional integrity. This approach reduces reliance on external energy sources, lowers carbon emissions, and enhances the sustainability of the built environment.
Key challenges in BIPV have optimizing energy efficiency, ensuring structural compatibility, and balancing aesthetic appeal with performance. Aerogel Panel addresses these challenges by providing advanced thermal management, lightweight support, and design flexibility, making it a versatile solution for various BIPV applications.
Thermal management for PV efficiency
Aerogel Panel's ultra-low thermal conductivity minimizes heat transfer through building envelopes, a critical factor in maintaining PV module efficiency. Solar panels generate less electricity when exposed to high temperatures, as increased heat reduces their conversion efficiency. By integrating aerogel panels beneath or within PV systems, Runhui's technology creates a thermal barrier that mitigates temperature fluctuations, ensuring consistent energy production even in extreme climates.
In hot regions, aerogel panels can reduce the heat absorbed by PV modules, preventing overheating and extending their operational lifespan. Conversely, in cold environments, the panels' insulation properties help maintain optimal temperatures for PV performance, avoiding energy loss.
Lightweight structural support
Aerogel Panel's low density (typically 100–200 kg/m³) makes it significantly lighter than traditional insulation materials. This lightweight design is particularly advantageous in BIPV applications, where structural load constraints are common. By reducing the weight of PV-integrated components, aerogel panels simplify installation and allow for larger PV systems without compromising the building's structural integrity.
Moreover, the panel's rigidity and dimensional stability ensure long-term structural support for PV modules, even in high-wind or seismic zones. Runhui's panels are engineered to withstand dynamic loads, making them suitable for new constructions and retrofitting projects.
Design flexibility and aesthetic integration
Aerogel Panel's slim profile (5–30mm) and customizable surface finishes enable seamless integration into various architectural designs. Unlike bulky insulation materials that may disrupt the aesthetics of BIPV systems, aerogel panels can be tailored to match the appearance of PV modules, creating a cohesive and visually appealing facade.
Aerogel panels can be laminated with transparent or semi-transparent PV materials to create energy-generating windows or skylights. Their hydrophobic surface prevents condensation, ensuring clear visibility and maintaining the structural integrity of glazed BIPV components.
Fire safety and durability
Fire resistance is a critical consideration in BIPV, as PV systems are often installed in high-rise buildings or densely populated areas. Runhui's Aerogel Panel is classified as an A1-grade non-combustible material, meaning it does not ignite or release toxic fumes when exposed to fire. This property provides an additional layer of safety in BIPV installations, particularly in rooftop or facade systems where fire spread could be catastrophic.
The panel's resistance to environmental stressors ensures long-term durability. Unlike traditional insulation materials that degrade over time, aerogel panels maintain their performance for decades, reducing maintenance costs and enhancing the lifecycle value of BIPV projects.
Application scenarios of Aerogel Panel in BIPV
Rooftop PV systems
Rooftops are the most common location for BIPV. Aerogel Panel plays a dual role here:
Thermal insulation: Installed beneath PV modules, aerogel panels reduce heat transfer from the roof to the building interior, lowering cooling loads.
Structural support: Their lightweight design allows for larger PV arrays without overloading the roof structure.
Weather resistance: The panel's hydrophobic surface prevents water ingress, protecting the PV system and the building's interior from moisture damage.
Runhui's panels are compatible with various roofing materials, making them suitable for commercial and residential applications.
Exterior wall and curtain wall systems
BIPV façades integrate PV modules into the building's exterior walls, transforming them into energy-generating surfaces. Aerogel Panel contributes to this by:
Enhancing thermal performance: As part of the wall insulation system, aerogel panels improve the overall energy efficiency of the building envelope.
Supporting PV modules: Their rigid structure provides a stable base for mounting PV panels, even in high-rise buildings.
Aesthetic integration: Aerogel panels can be customized to match the color and texture of PV modules, creating a unified and modern facade design.
In Europe, aerogel panels have been used in historic building retrofits to install PV systems without altering the architectural heritage, thanks to their slim profile and compatibility with existing structures.
Transparent PV applications
Transparent or semi-transparent PV systems allow natural light to enter buildings while generating electricity. Aerogel Panel is uniquely suited for these applications:
Thermal insulation: Reduces heat gain through glazed surfaces, improving indoor comfort and reducing cooling energy use.
Lightweight design: Enables the creation of large, lightweight PV-integrated skylights without structural reinforcements.
UV resistance: Protects PV modules from degradation caused by sunlight exposure, ensuring long-term performance.
Runhui's aerogel panels can be laminated with photovoltaic glass to create energy-efficient windows that meet thermal and lighting requirements, ideal for commercial offices and public buildings.
Solar shading devices
Solar shading devices can be integrated with PV modules to provide shade and generate electricity. Aerogel Panel enhances these systems by:
Thermal management: Insulates the shading structure, preventing heat buildup that could affect PV efficiency.
Structural stability: Supports the weight of PV modules while maintaining a sleek, minimalist design.
Durability: Resists wind, rain, and UV radiation, ensuring the shading device remains functional for years.
In urban environments, solar shading devices with aerogel insulation can significantly reduce energy consumption by blocking solar heat gain while producing renewable energy.
Retrofitting existing buildings
Retrofitting older buildings with BIPV systems is a cost-effective way to improve energy efficiency and reduce carbon emissions. Aerogel Panel facilitates this by:
Thin-profile insulation: Allows for easy installation in limited spaces.
Compatibility with existing structures: Can be applied directly to old masonry or concrete surfaces without extensive demolition.
Fire safety: Upgrades the building's fire resistance, meeting modern safety standards.
A case study in Luxembourg demonstrated that aerogel panels enabled the installation of PV systems on a historic building's roof without altering its cultural heritage, achieving a 40% reduction in heat loss while generating clean energy.
Technical considerations for BIPV integration
Material compatibility
Aerogel Panel must be compatible with PV modules and other building materials to ensure long-term performance. Runhui's panels are tested for compatibility with common PV mounting systems, adhesives, and sealants, ensuring seamless integration.
Electrical insulation
To prevent electrical hazards, aerogel panels used in BIPV must provide adequate electrical insulation. Runhui's panels are engineered with non-conductive inorganic fibers, making them safe for use in proximity to PV systems.
Ventilation and moisture control
Proper ventilation is essential in BIPV systems to prevent moisture buildup behind PV modules. Aerogel Panel's hydrophobic properties and vapor permeability allow for effective moisture management, reducing the risk of mold growth and material degradation.
Code compliance
Runhui's Aerogel Panel meets international building codes and standards for fire safety, thermal performance, and structural integrity, ensuring compliance with local regulations for BIPV installations.
Sustainability and lifecycle benefits
Aerogel Panel contributes to the sustainability of BIPV projects in multiple ways:
Energy efficiency: Reduces energy demand for heating and cooling, enhancing the overall energy performance of BIPV-integrated buildings.
Recyclability: At the end of their lifecycle, aerogel panels can be recycled into new materials, aligning with circular economy principles.
Low embodied carbon: Runhui's production processes prioritize energy-efficient manufacturing and recycled materials, minimizing the environmental impact of aerogel panels.
By combining these benefits with the renewable energy generated by PV systems, BIPV projects using aerogel panels achieve significant reductions in carbon emissions, supporting global climate goals.
Paving the way for solar-powered architecture
Zhejiang Runhui New Material Co., Ltd.'s Aerogel Panel is revolutionizing photovoltaic building integration by addressing key challenges in thermal management, structural support, and design flexibility. By leveraging aerogel's unique properties, Runhui enables buildings to generate clean energy while maintaining high levels of comfort, safety, and durability.
As the demand for sustainable construction grows, aerogel technology is poised to become a cornerstone of BIPV, driving the transition toward carbon-neutral buildings. Runhui's commitment to innovation ensures that its Aerogel Panel remains at the forefront of this movement, offering a tangible solution to bridge the gap between architectural ambition and environmental responsibility. With applications spanning rooftops, facades, and retrofitting projects, aerogel panels are catalysts for a greener, more energy-efficient future.