Implementation of Window Shading Models into Dynamic Whole-Building Simulation

摘要: An important consideration in energy efficient building design is the management of solar gain, as it largest and most variable gain a building. The buildings with highly glazed facades, well decreased transfer rates through better insulated tighter envelopes are causing interior spaces to become sensitive gain. Shading devices such operable slat-type louver blinds very effective controlling yet their impact on peak cooing loads annual consumption poorly understood. With ever-increasing role simulation tools buildings, there clear need model windows shading assess performance. Recent efforts at University Waterloo’s Advanced Glazing Systems Laboratory (AGSL) window research have produced set flexible models. These models were developed emphasis generality computational efficiency, ideally suited for integration into simulation. objective current develop complex fenestration facility within general purpose integrated software tool, ESP-r, using AGSL strategy implementation addition new multi-layer construction Complex Fenestration Construction (CFC). CFC based standard ESP-r nodal structure finite control volume numerical model, additional measures coping complexities that arise solar, convective radiant exchanges between glazing/shading layers, zone exterior surroundings. algorithms process properties system each time-step, making possible add (e.g., changing slat angle slattype blind) time-step level. Thermal resistances sealed cavities layers calculated various fill gases mixtures. In modeling layer combinations, type also provides an alternate method unshaded without relying third party supply optics cavity resistances.