However, although central cooling has been put into trial operation in many places, its practical application still faces some difficulties and challenges. In addition, compared with the familiar "central heating", most people still have some doubts and concerns about the new energy supply mode of central cooling.
Multi-site commissioning
Recently, many media reported that Shenzhen, Sanya and Guangzhou have started trial operation of central cooling systems. Among them, Guangzhou began to provide centralized cooling service many years ago, and Guangzhou University Town was one of the regional cooling projects with the largest cooling capacity in the world at that time.
Guangzhou University Town adopts the technology of "ice storage". Each cold station in the university town carries out night cooling during the period of low power consumption, and then melts ice for cooling during the day. Frozen water is delivered to all user terminals through pipelines, which is transformed into cold air and brings coolness to people.
According to the relevant person in charge of Guangzhou Chengtou Group University Town Company, the centralized cooling project in Guangzhou University Town can reduce the peak load of air conditioning by at least 30% compared with traditional central air conditioning, VRV air conditioning system and split air conditioning.
At present, Sun Yat-sen University, South China University of Technology, South China Normal University and other 10 universities, as well as Guangzhou Center, Guangdong Science Center, Guangzhou National Archives, Guangzhou Grand Theatre, Haixinsha Asian Games Stadium and other units have begun to use centralized cooling services.
Enter a period of rapid development
Wu Xiaolong believes that centralized refrigeration has entered a period of rapid development. He said that this is related to the policy and financial support of central cooling as a livelihood project. In addition, the weather is getting hotter and hotter, and people's attention to central cooling has also increased.
He mentioned that the discussion about central cooling is not limited to the south, because the summer in the north is also very hot. "Even customers in Gansu have found us, and this year's craze seems to have affected the demand in this region." He said that compared with previous years, their business volume has increased at least six times this year.
Dai Nuo, general manager of Shandong and Southwest Region of Lute Energy Technology Co., Ltd., told reporters that at present, the common forms of centralized cooling in China also include ground source heat pump, which mainly uses shallow geothermal energy to carry out work.
According to him, related technologies were first introduced into China from the United States in 1997. At present, the main participants in this industry in China are some large central enterprises, local state-owned enterprises and private enterprises such as Root Energy. At the same time, some local energy enterprises and institutions, such as the Institute of Geology and Mineral Exploration, are also transforming and developing geothermal energy-related businesses.