Our company has adhered to the design concept of green building, encouraged innovative application of green building technology, paid attention to the integrated application of green building technology and BIM technology, and highly integrated the green building technology into the subtle creative design. Great efforts have been done to make every work realize harmonious co-existence with the nature, and outstanding achievements have been made in integration of green building technology innovation and design, special research and application of green building technology, star-rated logo evaluation of green building and preparation and formulation of codes on green buildings, etc.
1.Integration of Green Building Technology Innovation and Design
The Company has actively promoted the energy-saving technologies of using non-mechanical electrical equipment to reduce the energy consumption of buildings through innovative design of architectural scheme. For examples, rational arrangement of building orientation, building shading settings, rainwater recycling and building envelope thermal insulation technologies and the architectural designs such as openings in building conducive to natural ventilation are adopted to reduce the energy consumption for supply of heat, air conditioning and ventilation. At the same time, designs are optimized by using scientific methods such as energy consumption simulation analysis, wind environment simulation analysis, light environment simulation analysis and acoustic design, etc., successfully creating a new model of low-cost green building.
The Phase I project of Wuhan Green Garden is the first national healthy housing demonstration project in Hubei Province. The principle of land and energy conservation has been followed, and the energy and water saving technologies like solar water heaters and recycled water system used to effectively reduce the energy consumption of the buildings. This project has successively won the Planning and Design Gold Award of National Healthy Housing Demonstration Project, Gold Award of Architectural Design, the first prize of Outstanding Engineering Design Award of Hubei Province, gold award of Zhan Tianyou Civil Engineering Award for Outstanding Residence Community, and the third prize of the First National Green Building Innovation Award. In 2005, former General Secretary of the CPC Central Committee, State President and Chairman of the Central Military Commission Hu Jintao inspected this community, speaking highly of its application of green building technologies. The aid-Costa Rica project of National Stadium is the first aid project of China in Central America, also the most modernized comprehensive stadium in the region so far. The design concept of green building was actively implemented in the design of this project. The design layout fully meets the requirements of natural ventilation. In combination with the local tropical maritime climate characteristics, energy and water saving technologies such as application of solar energy, energy saving lamps and rainwater recycling are adopted to achieve the targets of energy saving, consumption reduction and comfort. The whole stadium is beautiful, magnificent, economical and practical, widely acclaimed in the recipient country.
In combination with the characteristics of public buildings in the areas with hot summer and cold winter, the Scientific Research and Design Center of the Company highlights the application of green building technologies in energy saving and indoor environment. Outer adjustable shutter hollow glass windows are built in, and a vertical air passage is formed by sharing the atrium via connection between the upper and lower floors. Such energy and water saving technologies as ice-storage air conditioning system, air-conditioning heat recovery technology, solar hot water system, light guide lighting system, rainwater recovery system and green land irrigation system are adopted, perfectly realizing the green building design goals under the premise of not affecting the function use and investment control. DesignBuilder software is also used to simulate the energy consumption from the use of shutter in the outer windows and give guidance to the design, realizing good shading effect and reducing the energy consumption. Phoenics software is adopted to simulate natural ventilation and make comparative analysis via models, optimizing the ventilation effect of the vertical air passage. This project has won the national two-star green building design logo certification.
In the renovation and expansion project of the Military Museum of the Chinese People’s Revolution, through simulation calculation via Ecotect software and in combination with the actual functional requirements, a design concept was put forward: adding skylight in the center of the roof to achieve natural lighting, and vertical shutter and horizontal outer sun visor to prevent sunlight from directly shining on the exhibits. The length of the overhanging part of the sun visor is determined through accurate calculation. All these measures are taken to meet the functional requirements of the building and achieve the design goal of maximum energy consumption reduction.
2.Research and Application of Special Green Building Technology
The integrated solar design for Hangzhou East Railway Station buildings: This is one of the first national demonstration projects combining large-scale photovoltaic power generation system with large-scale public buildings. Polysilicon solar photovoltaic modules, totaling 79,000 square meters, are laid, with a generating capacity of about 10.04MWp and the annual average on-grid energy of 9.48 million kWh. The engineering design operation period is up to 25 years. Compared with the thermal power plants with the same generating capacity, this project can save about 3,384 tons of standard coal per year (the thermal power consumption of coal is calculated according to the 2007 national average value, i.e. 357g/kWh). Within the design operation period of 25 years, it can save all together 84,609 tons of standard coal. Moreover, 67 tons of SO2 emission, 29 tons of NOx emission, 541 tons of soot and 8,687 tons of greenhouse gas carbon dioxide can be reduced accordingly every year. The 10MWp solar power project in this project won the "2014 China Architecture Design Award" in the Architectural Society of China.
New Heat Pump Technology of Zhengzhou East Railway Station Put into operation in 2012, Zhengzhou East Railway Station is a large-scale traffic hub with a floor area of about 410,000 square meters. It adopts the urban sewage reclaimed water source heat pump technology. Compared with the conventional air conditioning system, it can reduce 2,040 MKCal of waste heat, 1,555 tons of CO2 emission, 160 tons of SO2 emission, 208 tons of soot emission and 62.5 tons of nitrogen oxide emissions. Meanwhile, since the air conditioning system has no cooling tower, 104,016 tons of water can be saved every year. Moreover, the possibility of legionella and mould pollution is also greatly reduced. What’s more, through efficient use of reclaimed water, 17% of operating cost can be saved annually, bringing good economic benefits to Wangxinzhuang Sewage Plant. The air-conditioning design in this project the "2014 China Architecture Design Award” in the Architectural Society of China.
3.Preparation and Formulation of Codes for Green Buildings
The Company has actively taken part in the formulation of codes for green buildings by the competent government departments and relevant ministries and commissions, including four standards for energy conservation of green buildings such as Standards for Evaluation of Green Railway Passenger Stations. It has also actively organized the preparation of Hubei Province’s standards for green buildings, and gained four energy-saving design proprietary technologies such as the Research on Integrated Energy-saving Technologies for Large Railway Passenger Station Buildings.
（1）Technical Standards
Standards for Evaluation of Green Railway Passenger Stations TB/T 10429-2014
Standards for Energy-saving Design of Residential Buildings in the Areas with Hot Summer and Cold Winter JGJ134-2010
Standards for Energy-saving Design of Public Buildings (GB50189-2015)
Code for Thermal Performance Design of Civil Buildings GB50176
（2）Local Standards
Standard for Energy-saving Design of Residential Buildings with Low Energy Consumption DB42/T599-2013
Guide to Energy-Saving Renovation of Existing Buildings in Hubei Province (Trial) Ejianwen No. [2014]25
（3）Task Achievements
Research on Integrated Energy-saving Technologies for Large Railway Passenger Station Buildings
Research on Standards and Evaluation System for Green Railway Passenger Stations
Research on Application of Green Building Technologies to Commercial Complexes in the Areas with Hot Summer and Cold Winter
Program and Technical Guidelines for Energy-Saving Renovation of Existing Buildings in Hubei Province
