Carbon neutrality in buildings, powered by air-energy heat pumps

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Author : Silence
Update time : 2022-02-16 16:40:59

Recently, Mr. Qiu Baoxing, former vice minister of the Ministry of Housing and Urban-Rural Development and chairman of the China Urban Science Research Society, attended the first committee meeting of the Renewable Energy and Carbon Neutral Building Professional Committee of the China Urban Science Research Society and "Renewable Energy Helps Buildings and Cities". In the "High-end Forum on Low-Carbon Development", he delivered a speech entitled "Welcome to Three Trends and Open a New Period of Carbon Neutral Buildings". It mentions that the era of "building structural innovation" has arrived.

According to the data provided by the International Energy Agency, the carbon emissions generated by the whole life cycle of buildings account for more than 40% of the total carbon emissions, that is, the construction industry accounts for 40% of the greenhouse gas emissions caused by human activities. %, and this proportion has reached 50% in my country. One of the main differences between my country and other countries in the world is that the proportion of reinforced concrete used in buildings in my country is higher. Therefore, whether it is carbon emissions from the whole life cycle of buildings or carbon emissions during operation, the proportion of carbon emissions from buildings in my country is the same. It is one of the highest countries in the world. It can be seen that carbon neutral buildings should play the most important role in my country's "dual carbon strategy".

"Carbon-neutral buildings" will be the second revolution in modern architecture, in which a wide variety of renewable energy sources can be incorporated into buildings, such as air source heat pumps, solar photovoltaics, ground source heat pumps, roofs Combination of utilization of fans and elevator descending energy. In this way, the building can be made a unit of production as well as a distributor of energy.

The application of air source heat pump, shallow geothermal energy, and deep geothermal energy in buildings all belong to "low-quality energy", because the maximum temperature of these energy sources is often around 100 degrees Celsius, and high-quality energy such as electricity can be transported over long distances. and efficient energy conversion. Low-quality energy can be fully used in buildings as cooling or heating, while high-quality energy can be traded and sold as peak shaving energy for the grid. If every building can be carbon neutral, then the entire city can be carbon neutral.

It is understood that air energy is a kind of renewable energy. The use of air energy heat pump to absorb the heat in the air for heating is one of the most advantageous heating methods in the central heating of medium and large office buildings, factories, schools, hospitals, and residential areas in the future. one. An excellent national brand that enjoys the reputation of "creator of air energy" - the commercial variable frequency units of Tongyi Air Energy are favored by the market in large-scale central heating.

It is reported that Shanxi Lingshi Yinyuan Group Coal Mine uses Tongyi Air Energy for heating. The group's Fengjiatan Coal Mine, Anyuan Coal Mine, Xinsheng Coal Mine, Huaqiang Coal Mine, Jintaiyuan Coal Mine, Xin'anfa Coal Mine, and Sunyi Coal Mine use a total of 107 sets of Tongyi ultra-low temperature air energy heat pump heating units, with a total heating area of ​​85,000 square meters meters, the energy saving effect is obvious, and the "coal-free" heating in the coal mining area has been achieved, which has won unanimous praise, and set off a brilliant new chapter of Tongyi's clean energy transformation in the Shanxi coal mining industry! In addition, as an outstanding contributor to the clean energy of "coal-to-electricity", Tongyi Air Energy's heat pump units are widely used in hundreds of heat pump units in Beijing, Tianjin, Hebei, Shanxi, Henan, Shandong, Shaanxi, Northeast, Northwest and other places. The "coal-to-electricity" project has brought warm and comfortable winter heating services to thousands of users.

It can be seen that heating energy consumption accounts for a considerable part of the entire building energy consumption. The use of air source heat pumps can obtain more heat with relatively low energy consumption, thereby effectively reducing carbon emissions throughout the heating cycle, which is not only in line with national development. Strategic needs will further promote the development of carbon neutral buildings in China!