The hottest new energy-saving glass was born in Sh

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New energy-saving glass was born in Shanghai

according to the Shanghai Glass Industry Association, the city has successfully produced energy-saving insulating glass with an international advanced level of - 40 ℃ ~ - 60 ℃ about 0.7 ℃/min. Installing this kind of glass can generally reduce the energy consumption loss of the original room by half and reduce the noise by 30 to 40 dB

according to experts, the so-called insulating glass is composed of two or more pieces of glass spaced to form a hollow layer in the middle, which is bonded and sealed. The thickness of the hollow layer varies from 12 to 22 mm, and the thickness of the hollow layer varies from 6 to 12 mm. Because there is an intermediate layer that does not produce air convection, it has significant functions of sound insulation, heat insulation, anti condensation, reducing cold radiation and enhancing the safety of glass. Its price is about 130 yuan per square meter, more than twice the price of ordinary glass

the experts calculated an account: when changing the metal frame single-piece glass window to the plastic steel frame hollow glass window, due to the obvious improvement of the heat dissipation performance of the window, about 25 degrees of electricity for cooling and heating air conditioning can be saved per square meter of the window throughout the year, which is equivalent to reducing the cost of power supply and distribution and heating and air conditioning equipment by about 150 yuan. This cost can be used for the transformation of the above window structure. As a result, the annual electricity saving cost per square meter of window is 25 × 0.61 = 15 yuan. If the outdoor window area is 10 square meters, about 150 yuan of electricity can be saved throughout the year

the city has implemented the new "residential design standard" since August 1 this year, which has new requirements for the "thermal environment" and "acoustic environment" of residential buildings. Among them, the heat transfer coefficient of window walls, mainly as fillers, must be less than 4.7. At present, the heat transfer coefficient of single-layer glass windows is mostly more than 4.7, and only the heat transfer coefficient of hollow glass can be less than 4.7, so it is possible to speed up the entry into public houses. When building green residential demonstration areas in many areas, insulating glass is used without exception

from the government level

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