Architectural design description II.
The construction time of the passive low-energy building of self-built houses in Beijing: September 6, 2021.06 to December 31; Project content: foundation, main body, thermal insulation, doors and windows, fresh air system, interior decoration; General contractor: Beijing Sunshine Shida Construction Technology Co., Ltd; Technical director: a giant expert of China Building Energy Conservation Association; Construction supervision: PHI certified constructor of German Passive Housing Research Institute; Component parts: doors and windows, fresh air system, airtight tape, thermal insulation materials and other component parts that have obtained the latest certification from PHI or relevant national testing institutions; Project quality acceptance: PHI constructor and giant experts in the passive housing sector; Service life of the building: 70 years.
2.
Passive rooms have natural advantages in responding to the epidemic and provide reasonable and effective protection for people to prevent infection indoors.
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The air tightness is excellent.
3.
The room is extremely clean, and the cleaning cycle and degree will be greatly reduced.
The air tightness of the building shall be less than 0.6 times (the air exchange rate shall be less than 0.6 times per hour under the pressure difference of 50Pa indoor and outdoor).
Medical protective clothing.
Architectural design description: Passive room (known as near-zero energy consumption building or passive ultra-low energy consumption building in China) is a building that only uses passive technologies such as efficient thermal insulation, thermal insulation, building internal heat gain, and fresh air equipment with heat recovery factor of more than 75%, instead of using active heating equipment, to achieve the indoor comfortable temperature range required by the specification throughout the year.
Because the fresh air system continuously delivers filtered fresh air to the room, the amount of oxygen is extremely sufficient and the turbid gas is eliminated, it can greatly improve people’s quality of life, especially beneficial to people’s physical and mental health, and is very suitable for the elderly, children and pregnant women; The green plants and flowers in the passive room are growing vigorously, and the fish are jumping about; For patients with chronic pharyngitis and rhinitis, it has been greatly improved.
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Energy saving is more than 92%.
The air-tight layer of the passive room is like “medical protective clothing”, providing effective isolation protection for the interior of the building; The fresh air system, like the “medical mask”, effectively filters the air entering the room, ensuring the indoor comfort, but also providing protection for our respiratory safety; Passive doors and windows provide vision like “goggles”, and can also ensure that they are not invaded by “infectious diseases”, but they will not be foggy and dewy like “goggles”, blocking our vision.
h person; Indoor carbon dioxide content is less than 1000ppm; The domestic hot water demand is 60 degrees; 25L/person day; The indoor surface shall be free of condensation and mildew.
Advantages of passive room: 1.
High comfort: the indoor temperature is 20-26 ℃, and the surface temperature of the surrounding room is not less than 3 ℃; Relative air humidity 40-60%; Indoor air velocity is less than 0.2m/s; The noise is less than 25 dB; Air change volume 20-30 cubic meters.
The annual living electricity and heating costs of 100 square meters of passive houses are about 1781.2-2671.80 (Beijing’s first-tier civil electricity price is 0.488; the annual heating costs of ordinary residential buildings are 30.00 per square meter).
1、 Construction time of self-built passive houses in Beijing: 2021.10.12-12.222022.03.15-4.25; Project content: foundation, main body, thermal insulation, doors and windows, fresh air system, interior decoration; General contractor: Beijing Sunshine Shida Construction Technology Co., Ltd; Technical director: expert of the giant in the field of passive housing; Construction supervision: PHI certified constructor of German Passive Housing Research Institute; Component parts: doors and windows, fresh air system, airtight tape, thermal insulation materials and other component parts that have obtained the latest certification from PHI or relevant national testing institutions; Project quality acceptance: PHI constructor and giant experts in the passive housing sector; Service life of the building: 70 years.
