新疆25选7开奖2019年:Analysis of application case of solar water heating system in Alibaba Alipay headquarters building
新疆25选7历史开奖结果 www.mpawbn.com.cn I. background of the project
The Alipay headquarters building of Alibaba is located in the "beautiful paradise" of Hangzhou. It is located in the east of Xixi road and Tianmu Mountain Road and Feida East Road. The project covers an area of about 50 mu and a building area of 85 thousand square meters. The overall shape of the building is "zigzag", and it can accommodate about 8000 people after completion. The building is designed by the famous NBBJ Architecture Firm, which has designed many famous buildings such as Starbucks Group in Seattle, Norway Oslo World Telecom Headquarters. At the same time, it is also an open ecological park, without traditional fences or railings, the entire park's square and 7000 square meters of ground greening, citizens can freely enter and leave.
The first Alipay Alibaba headquarters building is the ant gold service group. The ant gold suit is subordinate to Alibaba group. It has Alipay, balance treasure, recruit treasure, ant treasure, network business bank, ant flower chant, sesame credit, ant financial cloud, ant and so on sub business plate. In order to respond to the call of energy conservation and emission reduction from governments at all levels of the country, province, city and county, put energy conservation and emission reduction into practical action; and to save energy costs of enterprises, thereby achieving greater economic benefits, Alibaba actively promotes the use of solar energy, proposes the use of solar water heating system to solve office building domestic hot water and The demand for hot water in the dining hall.
Two. Key points of project implementation
1. The implementation of this project is based on the following national standards, Zhejiang and local meteorological data.
GB/T18713-2002 technical specification for design, installation and engineering acceptance of solar hot water systems
GB 50364-2005 "code for application of solar water heating systems for civil buildings"
GB50015-2003 code for design of building water supply and drainage
GB / T6424-1997 "technical conditions of flat plate solar collectors"
GB / T4271-2000 "test method for performance of flat plate solar collectors"
GB/T6424-1997 "technical conditions of solar collectors"
GB4301-84 "test method for thermal performance of solar collectors"
GB/T15513-1995 "Evaluation Method of Elastic Material for Solar Water Heater Absorber, Connecting Tube and Its Fittings"
GBJ1788 code for design of steel structures
GB/T12936 "solar thermal utilization terminology"
GB50275 code for construction and acceptance of compressor, fan and pump installation works
Check the information, Hangzhou: latitude 30, 16 ', longitude 120, 12', height 41.7m
Monthly mean outdoor temperature, monthly mean daily solar irradiance on the horizontal/local latitude slope (MJ/d)
Hangzhou is a subtropical monsoon climate zone with moderate annual temperature, cold winter and hot summer, warm spring and cool autumn, four distinct seasons, abundant light, humid air and abundant rainfall. The annual average temperature is 15.9 to 17 degrees, which is distributed in the South and the north. The extreme maximum temperature is 39.8 ~ 42.9 C, and the extreme minimum temperature is from -7.1 to -15.0 C. The average annual relative humidity is 76% to 81%. Frost free period is 199 days to 328 days. In 2007, the average annual temperature of Hangzhou City was 18.4 C, the annual precipitation was 1378.5mm, the annual precipitation days were 134 days, the annual sunshine hours were 1471.2 hours, and the annual average relative humidity was 71%.
2. Project implementation plan
2.1 general summary
The project is designed to use 1000_flat solar water heating system and 8 99kW gas boiler auxiliary heating system. The solar energy guarantee rate is 50%. In fine weather (the daily irradiation amount is 17MJ/), 200 tons of 60 C domestic hot water is provided daily. The insufficient part and rainy weather are supplied by gas boiler auxiliary heating system. Heat is needed.
The solar collector module is installed on the roof concrete foundation beam. During installation, in order to ensure the year-round lighting effect, the tilt angle of the solar collector bracket is 30 degrees with the local latitude, and there is a certain distance between each row to maintain light, safety and ventilation and maintenance needs.
This solar hot water project consists of four 50_small heat collection units to form a 200_heat collection system, and then five 200_heat collection systems to form a 1000_heat collection integrated system, and finally unified integrated control.
Project construction unit: Alibaba group
Project design: Hangzhou Poussin Energy Technology Co., Ltd.
Beijing Si Mu Ge solar energy technology Group Co., Ltd.
Project construction unit: Hangzhou Poussin Energy Technology Co., Ltd.
2.2 system design principles
Efficient and advanced: Keep the system running efficiently, maximize the priority of utilizing solar energy, and strive to maintain the domestic and international leadership within 3-5 years. This project adopts the international advanced Siemens integrated control system, which integrates solar energy system and auxiliary heating system, monitors and controls by computer.
Safety and reliability: The project adopts high reliability and mature technology imported from Germany blue film flat panel solar energy and integrated control equipment, combined with perfect construction and protection measures to improve the overall safety of the solar system and water supply reliability;
Harmonious aesthetics: combining the existing building installation, fully consider the original architectural design, maintain the original style and aesthetic sense of the building;
Public display: This project fully demonstrates the importance and determination of governments at all levels to energy conservation and emission reduction, and reflects the importance of renewable energy. Therefore, this project focuses on the display of new energy development and utilization. This project will become a large-scale demonstration project of centralized solar energy thermal utilization in Zhejiang Province, and will play a good role. The demonstration effect will show the effective and intuitive utilization of green new energy to relevant enterprises, units and citizens, and promote environmental protection.