Original title: Jinan tries out "centralized cooling" without air conditioning, and the room temperature is about 26 ℃. In recent years, the continuous high temperature days have made air conditioning an indispensable "life-prolonging" equipment in summer. Jinan, however, has made everyone feel the coolness of summer in another way, that is, centralized cooling. Since the trial operation of the centralized cooling mode in Jinan CBD area last year, it has covered nearly 210,000 square meters of users. The whole project uses the same set of municipal pipe network for heating in winter and cooling in summer. A hotel staff said that the room temperature can be kept at about 26 C without air conditioning, and the effect is very good. To this, the netizen expressed his doubt: Whether does such cooling mode save cost than air conditioning? Do I have to pay the cooling fee in the summer? Here comes the latest answer to the questions that everyone pays attention to and comments on! Question 1: Does it save cost compared with ordinary air conditioners? Answer: At present, the centralized cooling project in Jinan CBD area mainly serves the users of office buildings, hotels, commercial complexes and other public buildings in the area, and the cooling fee settlement adopts the meter-hanging metering method, which is settled according to the cooling capacity. Only when the user uses it will the cost be incurred, and no cost will be incurred if it is not used. Compared with building their own air-conditioning equipment, this kind of users not only reduce the floor area of the machine room and the roof area of the cooling tower, but also reduce the cost of increasing the capacity of the building for air-conditioning refrigeration, and there is no air-conditioning hanging machine, etc. Through the analysis of actual operation data, for super high-rise buildings over 200 meters, the cost of centralized cooling construction and use is lower than that of building alone. For general commercial buildings, the construction and use costs of the two are comparable. Question 2: Is there water droplets in the pipe? Answer: In summer, cold water in the pipeline will inevitably lead to condensation on the pipe wall. In view of this phenomenon, good pipeline insulation measures are generally taken to reduce the occurrence of condensation. If the user's room is in the form of radiator or floor heating, it is not suitable to be used as a cooling device at present. The terminal cooling device is generally fan coil equipment, and the fan coil is equipped with a condensate collection system to discharge the condensate out of the building, which will not affect the user's experience. Question 3: In terms of energy conservation and emission reduction, cbd crystallization equipment ,nutsche filter dryer, how to achieve carbon dioxide emission reduction? Answer: We have concentrated all the refrigeration equipment on the user side in the energy center, reducing the scale of refrigeration units in each single building in summer, and there are no cooling towers, air conditioning units and other cooling facilities on the user side. On the one hand, it reduces the floor area of the building room and reduces the noise pollution of the equipment; On the other hand, it saves the overall investment of the building, reduces the capacity of power distribution, and improves the overall quality of the beautiful appearance of the building. Every household has to emit "carbon" in life. In household electricity consumption, carbon dioxide emissions (kilograms) are equal to the power consumption multiplied by 0.785. For thermal power units using fossil fuels, using 100 kilowatt-hours of electricity is equivalent to emitting about 78.5 kilograms of carbon dioxide. With the implementation of this project, on the one hand, the installed capacity of centralized refrigeration equipment is much lower than the sum of refrigeration equipment built by users themselves, on the other hand, the efficiency of high-efficiency and energy-saving units used in centralized cooling is higher, so as to achieve carbon dioxide emission reduction. Question 4: Is it possible to adjust the temperature manually? Answer: At present, the terminal cooling facilities of our service users are all in the form of fan coil units, which are equipped with temperature control panels. Users can adjust the indoor temperature according to their own needs to meet the cooling needs. Question 5: Is this technology the future development trend? Answer: Due to the increasingly prominent energy and environmental problems, district cooling technology has been paid more and more attention by various countries in recent decades because of its high efficiency and low environmental impact. Since the 1980s, some commercial areas in Europe, commercial buildings in some big cities in Japan, and many university campuses in the United States have adopted this method of district cooling. Typical cases are La Defense CBD in France, Osaka in Japan and Shinjuku in Tokyo. In addition, Guangzhou University Town, Shenzhen Qianhai, Shanghai Hongqiao, Beijing Zhongguancun Science Park and other areas have also adopted the regional cooling mode and have been put into operation. At present, most of the centralized cooling areas used in the whole country are concentrated in comprehensive commercial districts and university towns, and there is a process for people to understand the centralized cooling. In addition, central cooling has its scope of application, generally for commercial areas with high-density buildings, it is more suitable to use the central heating and cooling system with cold and warm supply. 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