Is there a window that will make you very expectable? Open the skylight and say something bright: "The Window of the Century" is what you are expecting or will have a multi-functional composite aluminum alloy energy-saving, safe and smart window.
Any building can not be separated from the existence of windows, however, windows have many important practical problems in terms of energy saving and safety of the building; it is the main way of building natural lighting and ventilation channels, and directing indoor solar radiant heat in winter; In the summer, the sun's radiation makes the indoor temperature higher than the outdoor temperature. While advancing energy-saving, emission-reduction and low-carbon economy, China’s building energy consumption accounts for 28% of the country’s total energy consumption, and it is expected to approach 40% in 20 years. Modern buildings have a large number of glass curtain wall structures and architectural forms such as large windows, bay windows, and row windows, but they rarely consider the sudden increase in building energy consumption, resulting in a huge waste of non-renewable energy. Therefore, the topic of energy-efficient buildings was pushed to the cusp of the storm; the design concept of passive houses was gradually becoming popular; and the changes and improvements in the form of windows in the key parts of passive houses led to a significant reduction in the energy consumption of buildings.
The size of building energy consumption really lies in the uncontrollability of windows. In different seasons, different climates, different geography, different orientations and different designs, the ventilation, lighting, sunshading, heat insulation, and thermal insulation of windows have a huge impact on the energy consumption of buildings; according to estimates, 70% of energy consumption is due to Caused by the loss of doors and windows; modern construction uses a large number of glass curtain wall structure, this type of building is hot in summer and cold in winter, and the thermal insulation performance of wall and glass is 30 to 1; it will not achieve heat insulation in summer, and will not reach in winter. Insulation; At the same time, the use of coated heat-reflective glass, light pollution it has created has become a new social problem; it has poor light penetration, lighting must be turned on early in the evening, in order to block the sun's radiation during the day, the glass window is always closed , And the indoor ventilation is affected, the indoor heat can not be dispersed; and, its thermal insulation effect is less than 40%, the external heat will enter the interior, making the interior more stuffy, so you must open the air conditioner to spend This difficult summer; autumn and winter will only block the warm sun in the window, the room is too cold tolerant; but also need air conditioning heating to consume energy, it is unfavorable energy saving; in the rainy days, overcast The heavy weather combined with the dim light can make people feel depressed and irritated; because the sun's ultraviolet rays are completely blocked, indoor bacteria are difficult to eliminate and it is even more unhealthy. Since the air conditioner entered the tens of thousands of households, the architectural design considers the placement of the outdoor unit, and has adopted the balcony window method. This window, called the bay window, adopts a small floor sliding window surrounded by three glass panels, and its vent is less than 25%. At the same time, the ratio of window to wall has been increased and the brightness of the lighting has not been increased. The sun has been exposed on three sides in summer, which has made the interior more hot. The location of the external unit of the air conditioner is at the door of its own and neighboring households. The noise and heat generated by it have damaged people. At the same time harming themselves, this window shape is not conducive to building energy efficiency, but it is also sought after by people. Using energy simulation software DOE-2, in July in Shanghai, different orientations and different window/wall ratios resulted in 70% of the radiant heat entering through the windows. The larger the windows, the higher the radiant heat is. At present, broken aluminum heat-insulating windows on the market use insulating glass, which can play a certain role in insulation and heat insulation. However, strong sunlight transmits through the glass, heat is radiated in the room, and indoor blinds are used for heat insulation. It doesn't help at all. The blinding of curtains affects ventilation and lighting. In summer, the solar radiation intensity in Shanghai is higher than 1000W/?, so the use of air-conditioning reactive cooling, resulting in a huge energy waste.

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