Construction began on the first zero-energy building in Tianjin

2022-06-15 0 By

China News Service, Tianjin, April 6Certified by China Building Research Institute and certified by China Building Energy Conservation Association, “Exhibition Hall of Sino-German Eco-City”, the first “zero energy consumption AAA class assembled building” in Tianjin, has officially entered the construction stage recently.Designed by a team led by a professor from the School of Architecture of Tianjin University and German experts, the “zero energy consumption” building is a completely prefabricated steel structure.The evaluation results show that the comprehensive energy saving rate of the building is 100%, and the renewable energy utilization rate reaches 148.44%.A “zero energy” building, colloquial, means that the renewable energy generated by the building itself completely offsets the energy consumed.”The exhibition hall consumes about 45 degrees of electricity per square metre per year.The 105-kilowatt roof can generate 111,700 KWH of solar energy per year, while the building itself consumes 75,304 KWH of energy per year for air conditioning and heating.Ren jun said.The exhibition hall adopts efficient multi-link heat pump air conditioning units, and the full heat exchange fresh air system can save more than half of the energy compared with conventional buildings.In winter, the outdoor air temperature is 0℃ and the indoor air temperature is 20℃, for example, the fresh air system can convert the outdoor air into 15℃ when it enters the room through total heat exchange, and the heat recovery of the temperature can reach 75%.”As a ‘zero energy consumption’ passive house jointly developed by China and Germany, German experts also put forward many suggestions on architectural design.The fan-shaped roof of the building faces south towards the water, which can block sunlight when the sun is high in summer and reduce the electricity load of air-conditioning.In winter, the sun shines directly into the house to keep it warm.”Ren Jun explained that the so-called German passive house is simply to rely on these technical means to make the building passive constant temperature and insulation, in order to reduce its active electricity supply.It is estimated that the exhibition hall can reduce carbon dioxide emissions by 156.5 tons per year.With a total floor area of 1,980 square meters, the Exhibition hall will be open to the public free of charge and is expected to be completed within this year.Disclaimer: This article is reproduced for the purpose of passing on more information.If the source is wrong or violated your legitimate rights and interests, please contact the author with proof of ownership, we will promptly correct, delete, thank you.Email address: newmedia@xxcb.cn