What technologies were used in the construction of the Shanghai Center building?

Distributed energy utilization technology. Distributed energy system is a mature technology of comprehensive utilization of energy, which has attracted the attention of governments, enterprises, developers and operators for its close proximity to users, gradient utilization, high efficiency of primary energy utilization, environmental friendliness, and safe and reliable energy supply. There are various forms of distributed energy systems, and independent cooling, heating, and power cogeneration (abbreviated as CCHP) for use in large and medium-sized buildings is one of the very important ways.

The gas-fired CCHP system of this project is a cogeneration system that generates heat, electricity and cold with natural gas as the primary energy source. It uses city natural gas as the fuel, and utilizes small gas turbines, gas internal combustion engines and other equipment to use the high-temperature flue gases obtained from the combustion of natural gas to generate electricity firstly, and then utilizes the residual heat to supply heat in the winter; and to supply cold in the summer through the driven absorption chiller; and at the same time, utilizes the exhaust gas to provide domestic hot water. The exhaust heat is also utilized to provide domestic hot water. The energy utilization rate can be greatly improved from about 40% to about 80%, which saves a lot of primary energy.

Variable air volume air conditioning technology. Variable air volume air conditioning system is the use of changing the amount of air supply into the air-conditioning area to meet the load changes in a kind of air conditioning system, compared with the fixed air volume system, the biggest advantage lies in energy saving. ① Reduce the energy consumption of air-conditioning fan operation, and the power consumption of air-conditioning fan can be reduced by more than 50% on average throughout the year. The use of outdoor fresh air as a cooling source reduces the operational energy consumption of the refrigeration system. ③ Energy dynamic transfer. The instantaneous load and the heat balance of the inner and outer zones are fully considered.

The total air supply of the system is the maximum value of the sum of the required air volume of all zones in each time period, rather than the sum of the maximum value of the required air volume of all zones. The former is usually only 70% to 90% of the latter, significantly reducing the total air supply of the system. Currently, there are two main types of variable air volume air conditioning systems: single duct variable air volume system and double duct variable air volume system. Variable air volume end of the variable air volume box and variable air volume air outlet two types.

Heat recovery and utilization technology. Building in the operation process, the hotel, office and so on will produce a large amount of hot air, especially the Shanghai Center Building has 24 directly to the outside business of the large space of the air garden, in the summer will gather the temperature of the hot air, so the heat recycling technology is this part of the hot air recycling, the use of heat pump-type hot water heater, to provide hot water for hot water for the hotel to provide production of life. The Shanghai Center Building is designed as an air - water heat pump system with fan coil units with ECM motors.

Ground source heat pump technology. This is an environmentally friendly air conditioning system that utilizes shallow underground geothermal resources for heating and cooling. In winter, the heat in the soil can be "taken" out of the supply of indoor heating, and in summer, the indoor heat "taken" out of the release of the soil. It is characterized by environmental protection, there is no combustion process, no pollution emissions; no need to use the cooling tower, not to the outside heat discharge; not extract groundwater, do not destroy groundwater resources. Ground source heat pumps operate 40% more efficiently than traditional air conditioning systems. Pollutant emissions from ground source heat pumps are reduced by more than 40% compared to air source heat pumps and more than 70% compared to electric heating.

Establishing a friendly relationship between the building and the urban environment, improving the utilization rate of land resources, creating a human-centered, healthy and efficient high-quality microclimate environment, and achieving 100% of the indoor environmental standards.

Combined with the unique climate environment and the characteristics of the building itself, it optimizes the energy-saving design of the building to the greatest extent possible, makes full use of renewable energy sources, rationally realizes the gradient utilization of energy, improves the efficiency of energy utilization in the building, and the comprehensive energy-saving rate is greater than 60%.

Through design optimization such as reducing the use of renewable resources and reducing emissions, the building effectively utilizes rainwater and sewage resources, improves the utilization rate of water resources, and achieves the utilization rate of non-traditional water sources of office malls of not less than 40% and hotels of not less than 25%.

In the spirit of local conditions, maximizing the use of local materials and optimizing green building materials, the utilization rate of 3R building materials has been improved, and the utilization rate of recyclable materials has exceeded 10%.

Strengthen the scientific management of engineering construction and technological innovation, minimize the waste of resources, reduce the negative impact of construction on the environment, and realize green construction.

Setting up a comprehensive supervision platform for energy and environmental information, improving the level of intelligent operation management and property management, and ultimately realizing the goal of energy saving and emission reduction in buildings.