PATH: Thin-Film Active Building Envelopes

0533330，薄膜活动建筑围护结构伦斯勒理工学院博士。史蒂芬货车Dessel 110第8街，特洛伊，纽约州- 12180。US.PI:货车德塞尔史蒂文Co-PI：在这个项目中，研究人员和他们的团队正在研究薄膜主动建筑围护结构技术。主动式建筑围护结构（ABE）是一种集光伏和热电材料于一体的新型围护结构技术。在薄膜ABE系统中，薄膜光伏系统用于为薄膜热电系统供电，并且两个系统完全集成到一个薄膜表面中。当暴露于太阳辐射时，薄膜ABE系统能够控制其表面热流的大小和方向。这种智能控制是通过控制施加到薄膜热电系统的电流的方向来实现的。这种控制功能允许开发一种新的材料，其热导率不再仅由材料的厚度决定。薄膜ABE技术构成了智能传热材料领域的一个新的和关键的前沿。有前途的应用包括开发非常薄和透明的热涂层系统，可应用于各种外壳材料，如玻璃。在薄膜ABE系统中，太阳能直接用于控制材料上热传递的方向和大小。例如，当应用于窗户中使用的玻璃窗系统时，玻璃的内表面在夏天会变冷，在冬天会变热。 因此，玻璃本身将具有控制室内温度的能力，使传统的空调设备过时。此外，由于薄膜ABE技术基于固态材料，因此它们完全无声，几乎无需维护。 其他有前景的应用包括开发用于未来太空任务的先进热控制系统，以及用于需要热控制的先进包装材料。 开发薄膜ABE系统的一个重要激励因素是该技术完全依靠太阳能运行。因此，当用于建筑应用中控制室内温度时，可以实现显着的节能。考虑到美国国内能源使用的很大一部分用于空间调节，这变得特别重要。因此，薄膜ABE技术的成功开发可以为美国提供巨大的环境，经济和战略利益。 结合纳米技术和生物技术领域的最新进展，这项研究也将为开发在分子尺度上运行的未来ABE系统开辟理论道路。

0533330, Thin-Film Active Building EnvelopesRensselaer Polytechnic InstituteDr. Steven Van Dessel110 8th Street, Troy, NY - 12180. US.PI: Van Dessel StevenCo-PI: Achille Messac AbstractIn this project, the investigators and their team are studying thin-film Active Building Envelope technologies. Active Building Envelopes (ABE) constitute a novel enclosure technology that integrates photovoltaic and thermoelectric materials. In thin-film ABE systems, a thin-film photovoltaic system is used to power a thin-film thermoelectric system, and both systems are fully integrated into one thin-film surface. When exposed to solar radiation, thin-film ABE systems have the ability to control the magnitude and direction of heat flow across their surface. Such intelligent control is accomplished by controlling the direction of electrical current applied to the thin-film thermoelectric system. This control feature allows for the development of a new class of materials for which the thermal conductivity is no longer determined by the thickness of a material only. Thin-film ABE technologies constitute a new and critical frontier in the area of intelligent heat transfer materials. Promising applications include the development of very thin and transparent thermal coating systems that can be applied to various enclosure materials, such as glazing. In thin-film ABE systems, solar energy is used directly to control the direction and magnitude of heat transfer across a material. For example, when applied to a glazing system for use in windows, the internal surface of the glass can become cold during the summer and warm during the winter. Hence, the glass itself will have the ability to control the indoor temperature, making conventional air conditioning equipment obsolete. Furthermore, as thin-film ABE technologies are based on solid state materials, they are completely silent and virtually maintenance free. Other promising applications include the development of advanced thermal control system for use in future space missions, and use in advanced packaging materials that require thermal control. An important incentive for developing thin-film ABE systems is that this technology operates entirely on solar energy. Therefore, when used in building applications to control indoor temperature, significant energy savings can be accomplished. This becomes especially relevant considering that a significant portion of the US domestic energy use is used for space conditioning. The successful development of thin-film ABE technology can therefore offer substantial environmental, economic, and strategic benefits to the US. In conjunction with recent advances in the area of nano-technology, and bio-technology, this research will also open the theoretical path towards the development of future ABE systems that operate at the scale of molecules.