| Summary: | This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. === Thesis: S.M., Massachusetts Institute of Technology, Department of Architecture, 2019 === Cataloged from student-submitted PDF version of thesis. === Includes bibliographical references (pages 102-105). === I propose a digital design-production system to easily assemble, selectively disassemble, and reassemble novel passive solar walls. The problem statement I tackle is that all houses in Vinalhaven Island, Maine have high home-heating energy burden due to their thermally weak thin walls. Substituting thin walls with typical passive solar walls is a known solution, however such walls would be inundated with (i) high embodied energy in non-recoverable materials, (ii) high complexity of construction, and (iii) high cost of construction and renovation. Facilitated by a CAD-CAM interface, I develop a methodological framework called Design for Assembly, Disassembly, and Reassembly to lower all three parameters efficiently. I demonstrate both the framework and its outcomes by rapidly prototyping a few study models of passive solar walls. I speculate on the urban implications of a widespread integration of walls with reduced and recoverable material embodied energy. In order to effectively visualize this, the system boundary of urbanism scales up from a wall to a house, to two adjacent houses, and finally to five houses in Vinalhaven's downtown. I claim that successful on-site substitution of today's standard walls with Digital Passive Solar Walls will accelerate Vinalhaven's island homes toward a holistic energy transition. Broadly, I encourage professionals in the building industry to embrace such digital systems to recover material embodied energy locked in their designed artifacts. === by Ankur Podder. === S.M. === S.M. Massachusetts Institute of Technology, Department of Architecture
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