Typology Analysis of Various Windows and Smart Glasses for Optimal Energy Consumption in an Office Building in a Cold Climate

Energy consumption has rapidly increased over the past few decades. After the energy crisis of the 1970s and the subsequent rise in crude oil and energy prices, the focus on energy conservation has expanded. All buildings, including office buildings, contribute significantly to a substantial portion of global energy consumption, making energy performance a fundamental criterion in early-stage decision-making. Heat transfer and energy loss through openings and windows are critical concerns in all climates, particularly in cold climates, where they represent some of the weakest points of the building envelope in terms of thermal loss. Since appropriately designed openings are an effective strategy for maintaining energy inside the building, this study (a brief report) explores various window configurations that can reduce energy loss in buildings. This research examines different types of openings based on their geometry, the number of glazing layers (such as single, double, and triple glazing), the type of glass used (including reflective, energy-controlling, and smart glasses), different window frame profiles, and the insulating gases used between panes. The study aims to optimize window designs based on the number of glazing layers and their orientation in an office building located in a cold climate. In conclusion, the most efficient window type for cold climates is identified, considering the significance of solar radiation in such regions.