稿源：津滨网 编辑：王宁 2021-09-15 07:38
According to relevant data, China's building construction and operation-related carbon dioxide emissions account for about 40% of China's total carbon dioxide emissions, of which building construction accounts for 18% and building operations accounted for 21%. In the context of today's "dual carbon" goal, how to make buildings achieve carbon emissions reduction while being assured has become a must-answer question for the entire construction industry. With these questions in mind, a few days ago, the reporter walked into Tianjin Tenio Architectural Design Co., Ltd. (hereinafter referred to as "Tenio Design") in Tianjin Binhai High-tech Industrial Zone (THT) to explore the design "code" of green and energy-saving buildings.
Setting a benchmark for ultra-low energy buildings
Stepping into the Tenio Green Design Center, the “base camp” of Tenio Design in Huayuan Science and Technology Park, the reporter first felt the spring-like temperature and humidity in the interior. Natural lighting and vertical greening made this tense working atmosphere show the friendly side of nature. According to reports, this building is transformed from a 5-story old electronic factory building with a construction area of approximately 5,700 square meters.
"At the beginning of the design, we were determined to make this building a benchmark for ultra-low-energy green buildings. Therefore, not only did we adopt active and passive technologies to make the overall building more energy-efficient and environmentally friendly, but also equipped with an energy monitoring system to conduct real-time monitoring of effectiveness of equipment and systems, and accumulate research data." Ren Jun, chief architect of Tenio Design, told reporters that at present, the annual energy consumption of air conditioning and heating per unit area of Tenio Green Design Center is less than 20 kWh/m2, and energy consumption indicators are available for international competitiveness.
"By adopting a series of green energy-saving technologies, we can reduce the carbon emissions of buildings and reduce the cost of use under the premise of ensuring comfort." According to Ren Jun, Tenio Green Design Center uses ground-source heat pumps-water storage, air-conditioning systems, floor radiant cooling and heating, and bag ducts to supply fresh air and others technologies to enable buildings to "actively" reduce energy consumption. At the same time, building designs such as thickening the outer wall insulation layer, adjusting the proportion of south-facing window walls, entrance doors, and vertical greening have been used to "passively" reduce energy loss.
Exploring new opportunities for "zero carbon" construction
In Daxing District, Beijing, the "Tenio · Zero House" designed and renovated by Tenio Design is the first near-zero energy building in China that was built in accordance with the national standard "Near-Zero Energy Building Technical Standards" and received an evaluation mark. This project with a building area of more than 400 square meters has a comprehensive building energy saving rate of 75% and a renewable energy utilization rate of 61%.
According to reports, the "Tenio · Zero House" project ensures energy-saving effect of the building by adding transitional spaces such as passive sunrooms and stairwell wind towers on the basis of the original building, and adopting thermal insulation performance of the passive house standard enclosure structure. In addition, the project also uses renewable energy supplies and uses amorphous silicon solar photovoltaic tiles to provide buildings with naturally converted electrical and thermal energy, thereby reducing energy consumption for later residential use. The project won the silver award in the sustainable building category in the 2020 WAN World Architecture News Awards. It is also a demonstration project of the "Green and Smart Rural Technology Integration and Demonstration" by the Beijing Municipal Science and Technology Commission.