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The construction concept of near zero energy consumption building is conducive to economy and ecology

the construction concept of near zero energy consumption building is conducive to economy and ecology

September 22, 2020

how to achieve high comfort, good air quality, economic operation and affordable investment costs in a new project at the same time

for a long time, the construction community has always believed that economy, ecology, low energy consumption and renewable energy supply of buildings are uncoordinated and even contradictory goals. At least a compromise should be found between these goals. However, many near zero energy consumption buildings that have been built have proved that as long as the energy consumption of buildings is reduced to a large extent, the economy, ecology and renewable energy supply can be well coordinated with each other

the coordination of economic and ecological effects in the application of energy-efficient technologies in near zero energy consumption buildings is not accidental. It depends on the technology adopted:

01. Improving thermal insulation not only means reducing energy consumption, but also means achieving high indoor surface temperature in winter and low surface temperature coatings in summer. Thus, the comfort can be improved and the possibility of condensation on the inner surface can be reduced. Improving thermal insulation means increasing the use of thermal insulation materials. 1. What is the main difference between the control system of hydraulic universal testing machine and universal servo testing machine? That is, the "wrapped air". They are very light building materials - cheap in nature and few consumables

molded polystyrene board/graphite modified molded polystyrene board

02. According to the experience of near zero energy consumption buildings, avoiding thermal bridges is an economic energy-saving measure, and its effect of protecting buildings and improving comfort is obvious. Under the common temperature and humidity in the room, the near zero energy consumption building without heat bridge design will no longer have condensation on the inner surface

heat break bridge anchor bolt

03. Good air tightness can also reduce the probability of building damage. The long-term test results of the nearly zero energy consumption building built 10 years ago show that the carefully designed and constructed peripheral protective structure can maintain good air tightness for a long time

DuPont Tewei strong waterproof and vapor permeable membrane

04, as important building components, the quality of windows has been decisively improved in recent years. High quality windows are a prerequisite for the realization of near zero energy consumption buildings. In order to control the U value of the whole window below 0.85w/(M2 ・ K), it is necessary to professionally install the window power off. Energy efficient windows play a key role in improving comfort, because they are active in the fields of health, nutrition and materials all over the world and can keep the surface temperature of the room side glass above 17 ℃

energy saving windows

05. In all measures of heat preservation and air tightness, providing fresh air for residents can not be ignored. By adjusting the fresh air system, fresh air can be reliably provided at the ideal position as required. The cleanliness of the air and the comfort of the air supply are particularly important here. Now there is an efficient fresh air system with heat recovery in the market, which can well combine the comfortable fresh air supply with the improvement of energy efficiency

high efficiency fresh air system

in terms of all the above technical measures, nearly zero energy consumption buildings have reached the high-end development level. Through the perfect combination of good heat preservation, air tightness, heat preservation windows and high-efficiency heat recovery fresh air system, the completed houses only need negligible residual heating energy consumption, and the heating and fresh air system will be combined in this process in terms of oscillation and function. The two achieve synergy, and more importantly, significantly improve living comfort and building quality

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