Each house type of the project adopts the integrated design and construction of civil engineering and decoration.
9.
6.
The project is positioned as a green three-star building and makes rational use of green ecological technology.
According to the load calculation, the calculated cooling load of the air conditioning system of this item is 4820kw; The calculated heat load of the air conditioning system is 3341kw.
The project is equipped with two variable-frequency screw ground source heat pump units (refrigeration capacity 938kw and heating capacity 1420kw), so the total cooling capacity and heat supplied by the ground source heat pump system are 1876kw and 2840kw.
The whole process works together.
After running for a period of time, if it is detected that the CO concentration still exceeds the standard, all the induction fans in the compartment will be automatically started, At the same time, start the main fan in the inlet and exhaust fan room for air supply, exhaust and ventilation.
Building height: 99.65 meters for 1 # building, 99.95 meters for 2, 3 and 5-7 # buildings.
Number of single buildings: 6 buildings.
From hundreds of green building projects of 75 real estate enterprises in 2021, the green think tank, a wechat green netizen, selected the top ten green buildings in 2021 after enterprise application, first round screening and expert selection.
Project 1: Nanjing Hexi Jinmao Mansion Project Location: Jianye District, Nanjing building type: residential building area: 130000 square meters, certification mark: green construction three-star, healthy three-star project nature: residential construction project investment: 249991300 yuan, land area: 33390.96 square meters, construction area: 129917.17 square meters, including 92400.94 square meters of aboveground construction area The underground building area is 37516.23 square meters.
Building floors: 29F for 1 # building, 31F for 2, 3 and 5-7 # buildings.
At the same time, considering the increase of sensible heat recovery device, the air supply / exhaust resistance of the equipment has increased.
8.
The excess part is discharged into the municipal rainwater pipe network to save water.
In order to reduce the waste of unnecessary water sources during operation, water-saving floor washers are used for road flushing and basement flushing of the project.
Apply BIM Technology and intelligent control of the whole process to improve work efficiency and economic benefits.
After the air supply and exhaust operation for a period of time, when it is detected that the CO concentration in the partition is lower than 5mg / m3, the system will shut down automatically or manually.
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The project is equipped with rainwater collection and reuse facilities.
The indoor air quality is greatly improved.
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The south, East and West windows of each building are all set with double handle built-in shutter glass, which has good sunshade and sound insulation, good energy-saving effect and convenient opening..
Various design disciplines can cooperate in design, which can reduce design defects such as omissions and collisions.
The project is located in Nanjing, Jiangsu Province.
When the CO concentration at the monitoring point is higher than 30mg / m3, the induction fan at the monitoring point will automatically start to dilute the CO concentration.
12.
After the power consumed by the increased resistance, the annual cost of the exhaust heat recovery device used in the project is 67008.386 yuan, and the investment payback period is about 19.64 years; 3.
Then the proportion of cooling capacity and heat provided by renewable energy in the project is ((1876kw + 2840kw) / (4820kw + 3341kw)) * 100% = 57.79%.
The sanitary ware with first-class water-saving efficiency that meets the requirements of the current national standard general technical conditions for water-saving products GB / t18870 and the current industrial standard water-saving domestic water appliances cj164 is purchased and installed in place at one time.
Sterilization device is set behind the humidification section of fresh air unit.
The project uses soil source as the main air conditioning cold and heat source to provide air conditioning cold and hot water for the whole plot, and auxiliary cold and heat sources are set in the insufficient part to ensure the cooling and heating demand of the project.
The solar water heating system is set on the six floors above the roof of each residential building of the project, and each household is equipped with a set of integral non pressure solar water heater on the roof.
Based on the data of typical meteorological years in Nanjing, the annual dynamic hourly calculation is carried out.
11.
The sanitary ware adopts the operation mode of centralized procurement by the group.
The system will operate repeatedly.
10.
The form of heat recovery is sensible heat recovery, and the heat recovery efficiency is 60%.
The design of the project fully combines the local characteristics of Nanjing, Adopting green ecology and building energy-saving technologies suitable for residential buildings, we reasonably selected the green building compliance items, and strive to meet the three-star index requirements of green buildings from six aspects: land saving, energy saving, water saving, material saving, indoor environmental quality and innovation.
Managers can also manually start and stop single, multiple or all fans according to the current harmful gas concentration or temperature and humidity conditions to ensure the air quality of the garage.
The project adopts heat recovery fresh air treatment unit.
Fresh air filtration adopts four-stage filtration, with primary effect filter + two-stage electrostatic precipitator + medium effect filter, and the filtration efficiency reaches F9.
Water saving automatic sprinkler irrigation is adopted for outdoor greening sprinkling of the project, and rainfall sensing device and soil humidity sensor are set for intelligent control.
Development and construction period: 2020 / 10 / 31 to 2022 / 10 / 31.
The project design has the following advantages: 1 Through the establishment of three technologies: site infiltration, depression of green space and rainwater reuse reservoir, the project will finally achieve 70% of the total annual runoff control rate, and all the rainwater required to be controlled can be digested within the project.
Each exhaust fan in the exhaust fan room is equipped with a set of CO concentration control system (which can ensure at least one probe in each fire compartment).
After rainwater collection and treatment, it is used for greening, road sprinkling and basement flushing.
According to the calculation, the number of households equipped with solar water heating is 108, and the total number of households of the project is 492, so the utilization proportion of solar water heating in the project is 21.95%.
2.
Compared with conventional manual pipe flushing, it is cleaner, which can reduce the number of repeated flushing and save water and labor.
The basement exhaust is equipped with a CO concentration detection and control system to automatically control the start and stop of the fan to save energy consumption.
Structural form: reinforced concrete shear wall structure.
