Contractor

Name : 河南五方合创建筑设计有限公司

Contact : 姓名：陈先志 电话：0371-60235796 邮箱：[email protected]

 http://www.fivewin.cc

Construction Manager

Name : 河南五方合创建筑设计有限公司

Contracting method

General Contractor

Owner approach of sustainability

As the first passive ultra-low-energy building project in the Central Plains, the “Fivewin Science and Technology Museum” is designed, constructed and monitored in strict accordance with the characteristics of passive ultra-low-energy buildings. Compared with traditional construction projects, the construction indicators refer to domestic "Passive ultra-low energy green building technology guidelines" and Germany passive house PHPP design method, comprehensive optimization, to achieve a good thermal performance of the external insulation structure, high-performance door and window components, fresh air with full heat recovery, high COP soil source and air source heat pump unit. Realizing healthy, comfortable and energy-saving indoor living environment which plays an important role in promoting the innovative and healthy development of modern buildings.

The project is designed and constructed in strict accordance with the German passive house standard and domestic relevant energy-saving standards, from (1) high standard external wall thermal insulation system; (2) high performance doors and windows; (3) good air tightness; (4) near no thermal bridge design; (5) efficient fresh air heat recovery system; (6) comprehensive application of natural ventilation and natural lighting; (7) intelligent control and management of equipment and lighting; (8) utilization of renewable energy: a. ground source heat pump; b. solar photovoltaic technology; c. solar thermal technology, controlling various performance parameters, continuously optimize the node design, maximize the proximity to the idealized model, and finally make the building wall heat transfer coefficient 0.22 w/(m2.k), roof heat transfer coefficient is 0.20w/(m2.k), glass heat transfer coefficient is 0.61w/(m2.k), overall air tightness N50=0.17h-1<0.6h- 1. The fresh air heat recovery efficiency is 77.3%>75%. The energy consumption index meets the German passive house standard and has been certified by the Germany Passive House Institute.

Architectural description

First, the project uses high-efficiency fresh air heat recovery system, the sensible heat recovery efficiency is greater than 75%, and the total heat recovery efficiency is greater than 70%, effectively reducing the fresh air load. The outdoor fresh air passes through the plate type coarse filtration and medium efficiency filtration to filter out dust, PM2.5 particles and harmful substances, and exchanges heat through the plate-fin heat recovery section, then the temperature and humidity treatment from the cold section, and finally sent indoors. The unit not only saves energy but also delivers high-quality fresh air to the interior to meet people’s needs.

Secondly, the project has designed near no thermal bridge design for the building envelope, avoiding the damage caused by the heat bridge to the building envelope, such as condensation and mildew, effectively improving the comfort of the building.

Third, the ground source heat pump is used for energy conversion. The ground source heat pump is a clean renewable energy source, which greatly reduces the pollution to the environment. According to statistics, the use of ground source heat pump technology can save an average of 30% to 40% of air conditioning operating costs.

Fourth, the project adopts the building photovoltaic integrated system, which ingeniously integrates the photovoltaic film with the landscape gate and the landscape rain shelter slope roof. The translucent film not only plays the role of sunshade and rain, but also provides cleaning renewable energy for the science and technology museum. It is the perfect combination of new energy and architectural landscape. Photovoltaic power generation effectively saved the traditional energy sources for the Science and Technology Museum.

Fifth, the intelligent control system can intelligently control indoor lighting, air conditioning, fresh air, sunshade and other equipment.

Building users opinion

In terms of thermal comfort, the thermal stability of the enclosure structure of this project is significantly better than that of ordinary houses, creating an indoor environment with warm winter and cool summer, winter temperature ≥20℃, summer temperature ≤26℃, relative humidity 30%-60%, which is good for the health of residents.
In terms of air quality, the good airtightness of the building makes it impossible for outdoor polluted air to enter the room directly. At the same time, the outdoor fresh air is sent into the room through the coarse and medium-efficiency filtration of the fresh air unit, ensuring good indoor air quality, and the user is more assured and comfortable.

In terms of light environment, the building window and wall ratio is relatively large, which ensures sufficient brightness and good light quality in the room. At the same time, external shading is set to avoid glare.
In terms of acoustic environment, the building has the characteristics of sound absorption and sound insulation, and is free from traffic noise and neighbor noise, giving users a quiet and private environment.

Energy consumption

• Primary energy need : 41,65 kWhpe/m².年
• Primary energy need for standard building : 379,05 kWhpe/m².年

Calculation method : Other

• Final Energy : 54,30 kWhfe/m².年
Breakdown for energy consumption :

Heating: 10.8 Kwh/m2/year
Cooling + Dehumidification: 15.7 Kwh/m2/year
Domestic hot water: 11.8 Kwh/m2/year
Other: 16.0 Kwh/m2/year

Envelope performance

• Envelope U-Value : 0,22 W.m^-2.K^-1
More information :

The external wall is made of 150mm thick graphite polystyrene board, double layer staggered, the heat transfer coefficient is 0.22w/(m2.k). The roof is 150mm thick extruded polystyrene board, the heat transfer coefficient is 0.20w/(m2.k). Adopt three glass, two cavity, low-e interior argon - filled doors and windows, and the glass heat transfer coefficient is 0.61w/(m2.k).

• Building Compactness Coefficient : 0,26

Indicator :

• Air Tightness Value : 0,17

Systems

Heating system :
• Geothermal heat pump
• Fan coil
Hot water system :
• Solar Thermal
Cooling system :
• Geothermal heat pump
• Fan coil
Ventilation system :
• Single flow
Renewable systems :
• Solar photovoltaic
• Solar Thermal
• Heat pump (geothermal)
Solutions enhancing nature free gains :

Fully considering natural ventilation measures, the orientation of the building is 10 degrees south to west.

Smart Building

BMS :

The building has an automatic control system, which can automatically control the start and stop of the fresh air unit and other equipment, the wind speed and the temperature and humidity of the air supply according to the indoor CO2 concentration. The indoor air conditioning system can set the temperature and humidity with one button, and can also set the temperature of each room separately. At the same time, the monitoring system can monitor the temperature and humidity, pm2.5, pm10 and VOC parameters of each room in real time

Users’ opinion on the Smart Building functions :

Very intelligent, you can control the start and stop of the device with one click, and save energy.

Urban environment

The project is located 1.5 km south of the intersection of Zhengdeng Road and Southwest Ring Expressway in the Erqi District of Zhengzhou City, Henan Province, Zhengzhou Architectural Art Park. Zhengzhou Xigang Art Experience Park takes the theme of "architectural art" as its theme. The park has a total of 86 acres of construction land, and is adjacent to the surrounding 400 acres of water ecological conservation forest land, with an area ratio of less than 0.4. It is built by Vanke, Sunac, OCT, Central China, Zhuguiyuan, Fivewin Design, Rongqiao, Yasin and other enterprises. Henan Fivewin Architectural Design Co., Ltd. is the only design enterprise in the nine enterprises. The investment is about 600 million yuan. The surrounding area is the Cherry Valley Ecological Park and Jianye Football Town.

The Fivewin Science and Technology Museum has a total construction area of approximately 3,820 square meters and three floors above ground. Its main function is to demonstrate passive ultra-low energy/near zero energy building technology, as well as demonstration, display, research and development, experience and communication of other new building technologies.

Hall A - As a public building, the internal functions are mainly conference, office, accommodation and catering.

Hall B - As a residential building, focus on the marketization of passive houses.

Land plot area

Land plot area : 4 338,98 m²

Green space

Green space : 156 658,00

Product

Waterproof and breathable membrane



SIGA

Rütmattstrasse 7 CH-6017 Ruswil

 https://www.siga.swiss/global_en


Product category :

The waterproof and breathable membrane is waterproof and airtight material.

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

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waterproof vapor-proof membrane



SIGA

Rütmattstrasse 7 CH-6017 Ruswil

 https://www.siga.swiss/global_en


Product category :

The waterproof vapor-proof membrane is waterproof and airtight material.

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

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heat-breaking bridge anchor



利坚美

北京市辖区大兴区，中国；[email protected]

 http://ljmkj.51pla.com/


Product category :

The heat-breaking bridge anchor is a fixed and heat-insulating component that the thermal bridge value is extremely small.

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

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three-glass two-chamber double low-e glass window



奥润顺达

河北省高碑店市东方路国际门窗科技大厦；[email protected]

 http://www.alrunsd.com/


Product category :

The door and window are three-glass and two-chamber double low-e glass, and the heat transfer coefficient is 0.61. w/(m2.k).

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

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heat-insulating reflective coating



sto

河南省郑州市中州大道与郑汴路交叉口

 http://www.sto.com.cn/


Product category :

The surface absorption coefficient of the heat-insulating reflective coating is 0.326 and exterior wall can reflect a large amount of sunlight in summer.

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

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passive skylight



威卢克斯

中国河北廊坊经济技术开发区百合道21号；[email protected]

 http://www.velux.com.cn/


Product category :

The passive opening skylight is with a heat transfer coefficient of 0.83 w/(m2.k).

The project designer: Try to use new products for the first time. Before adopting new products, conduct many field investigation, visit, study and exchange, so as to ensure the design is foolproof.
Construction workers: Slightly different from traditional construction, the construction of the project is more refined, the requirements are relatively high, and workers need to be specially trained before construction.
Users: The most direct feeling is that electricity consumption is less, and it has better comfort than traditional buildings.

Construction and exploitation costs

• Total cost of the building : 40 590 000 ¥

Energy bill

• Forecasted energy bill/year : 56 000,00 ¥

Real energy cost/m2 : 14.65

Real energy cost/Work station : 800

Building Environmental Quality

• Building flexibility
• renewable energies
• integration in the land
• products and materials

Water management

• Consumption from water network : 4 993,20 m³

Water Consumption/m2 : 1.31

Water Consumption/Work station : 71.33

Indoor Air quality

The fresh air system can automatically adjust the fresh air volume according to the indoor carbon dioxide concentration. The wind turbine has four speeds variable frequency control. The air volume ranges from 2000m3/h to 4000m3/h, the average CO2 concentration exceeds 1000ppm (50hz, 4000m3), 1000-800ppm (35hz, 2800m3), 800-600ppm (30hz, 2400m3) and below 600ppm (25hz, 2000m3). The indoor PM2.5 is not more than 25μg / m3, PM10 is not more than 30μg / m3, VOC grade is excellent and good.