The first solar-heating demonstration building jointly operated by Gansu Provincial Research Institute of Building Materials Research and Design, Institute of Electrical Engineering, Chinese Academy of Sciences, Tsinghua University Rural Energy Conservation and New Energy Laboratory was established in Yongde County Building Materials Institute. A new pilot construction base for building materials was built.
It is reported that the demonstration building was originally a single-layer brick-concrete structure, with poor thermal insulation properties and high building energy consumption. Adopting a number of energy-saving technologies for building energy-saving technologies has enabled the building to meet the national standard for building energy efficiency of 65%. The heat collection system uses a heat-pipe vacuum tube and a 22kW photovoltaic power generation system (on-grid) is installed on the roof for base production. , lighting and heat storage and heating systems; heat storage system with 9 cubic meters of special concrete as heat storage medium, while using 3 tons of circulating water tank, the end of the use of efficient radiators; the system after nearly four months of trial operation, to meet The building's heating needs, heat storage system can provide 16 hours of continuous heating.
The operation of the demonstration system shows that the solar heating technology is one of the feasible technologies for the development of green low-carbon buildings, and can make important contributions to the control of air pollution and the development of energy-saving and environmental protection industries. At present, the system is undergoing engineering optimization to facilitate large-scale application. Reporter Zhang Xiaoyan
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