Abstract

In this chapter, building integrate photovoltaic thermal (BIPVT) coupled with a geothermal system is reviewed in which the geothermal component can perform bidirectional heat exchange with the BIPVT component for highly efficient thermal management. In addition, the geothermal heat along with the BIPVT electricity can be used to achieve net-zero energy houses. At the beginning of the chapter, an introduction to the physics, design, and construction of the geothermal wells is provided. Later, the design and working principles of a bidirectional geothermal well are discussed including the heat transfer, thermal fluid flow, and energy consumption and calculations. As an example, a novel passive bidirectional BIPVT geothermal system is introduced, and its technical and economic feasibilities are discussed. In the end, two case studies are provided, one on a net-zero energy house in Wisconsin, and the other one on a BIPVT curtain wall in Illinois.

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