Intelligent and efficient computer room system
Efficient machine room | What is a professional and efficient machine room with green wisdom?
With the development of "carbon peak, carbon neutral" strategy, all walks of life began to seek the road of green development, among which, the green sustainable development of public buildings has become the focus of attention.
The data show that in public buildings, air conditioning power consumption accounts for about 50% of the total power consumption of the building, while the refrigeration room system (including chiller, water pump and cooling tower) accounts for about 85% of the air conditioning system, which shows that the energy saving potential of the refrigeration room system is huge.
Building efficient room has become the focus of central air conditioning system energy saving. However, in terms of the comprehensive energy efficiency of the unit up to the standard of COP5.0 or above, the current domestic refrigeration room system operation energy efficiency is generally low, there is a large energy saving space, so the development of efficient refrigeration room system is an important breakthrough in response to national policies and improve the energy efficiency of public buildings refrigeration.
Traditional equipment rooms have problems
Refrigeration room to achieve efficient, green, energy-saving operation, in addition to the construction of efficient, green, energy-saving room, but also need to do the scientific operation and maintenance of the existing refrigeration room. However, at present, there are many problems in the design, construction, operation and maintenance of most refrigeration rooms. For example:
Three major problems
I. Operation management problems:
1. The data of the equipment room cannot be manually recorded, and the energy consumption of each device cannot be collected at that time, day, week, or year, and the operating data of the equipment room cannot be analyzed.
2. If the equipment room is faulty or damaged, maintenance is not timely.
3. The operation and maintenance personnel are not professional, and the equipment is easy to misoperate.
2. Design and selection problems:
1. There is no energy efficiency requirement for the equipment room during design.
2. Equipment low load operation, big horse car;
3. Using fixed frequency centrifuge/screw machine, supporting fixed frequency water pump and cooling tower;
4.90° pipeline, load balancing valve design, large water resistance.
Third, construction debugging problems
1. Responsibility is not clear, and energy saving has not been implemented;
2. The equipment room is not connected and adjusted, and the device is not running in the high efficiency zone.
In response to existing problems, central air conditioning responds to the national "carbon peak, carbon neutral" layout, unswervingly upgrades and iterates from energy-saving technology, Internet of Things technology, and smart scene experience, aiming at high energy consumption and low efficiency in the field of low-carbon
First launched the energy-saving scenario solution of the Internet of Things efficient room, from product energy saving 50% to solution energy saving and then to the full life cycle service, promoting the green and sustainable development of the building.
1, product energy saving - energy-saving host
2, solution energy-saving - efficient intelligent computer room
3, full life cycle service - operation and maintenance
Efficient machine room technical route
In order to better promote the refrigeration and energy saving of large public buildings, the central air conditioning efficient room system has realized systematic, intelligent and integrated optimization design, and the energy efficiency of the room can reach 7, leading the industry level.
The proposal of the efficient machine room conforms to the "Green and Efficient Refrigeration Action Plan" issued by seven ministries and commissions including the National Development and Reform Commission in 2019. The plan points out that by 2030, the energy efficiency of large public buildings will be increased by 30%, the overall energy efficiency level of refrigeration will be increased by more than 25%, and the market share of green and efficient refrigeration products will be increased by more than 40%.
Therefore, as a key part of building energy saving, central air conditioning must achieve maximum energy saving through technical strength, in the carbon peak, carbon neutral goal vision, central air conditioning system integration, energy-saving room as the core, pay attention to the host products high energy efficiency at the same time, but also take into account the comprehensive COP to improve the operation of the room system, comprehensively provide efficient system integration solutions. Through their own strength to help "realize" the good prospects of efficient room.
In response to the national "14th Five-Year Plan", the practice of "carbon neutral" green development, the future, central air conditioning will continue to focus on the construction of efficient room scene ecology, and ecological partners to create a green, efficient and energy-saving ecosystem!
With the development of economy and people's pursuit of comfortable environment, central air conditioning occupies an important position in modern buildings, but it is also a large amount of energy consumption. Some data show that the energy consumption of air conditioning equipment accounts for 50%-70% of the total energy consumption of commercial buildings, and this data does not gradually decrease with the development of technology but increases year by year. Therefore, creating a high energy efficiency central air conditioning system is currently the direction of research in the entire industry.
What is an efficient machine room
To put it simply, evaluating whether an air conditioning room is energy-saving can be judged by the annual energy efficiency ratio COP value, that is:
According to the standards proposed by the American Society of Heating, Refrigeration and air Conditioning Engineers (ASHRAE), the "annual comprehensive energy efficiency of air conditioning room" in COP5.0 (0.7kw/ton) is a high-efficiency room, and the comprehensive energy efficiency above 1.0kW /ton is a room that needs to be transformed. At present, the energy efficiency of most computer rooms in China is above COP 3.5(1.0 kW/ton).
Second, the energy-saving value of efficient machine rooms
Take the office building for example:
200,000 square meters of office, peak cold capacity 3,800 cold tons, the price of electricity is calculated at 0.68 yuan/KWH preferential price. cop3.0 increased to 5.0, saving $2.066 million per year, and 3.5 increased to 5.0, saving $1.328 million per year.
Three, the air conditioning room existing problems
In the design of the air conditioning end scheme, most of the air conditioning with the opening rate are considered relatively low, resulting in most of the existing host capacity is more than 2 times the peak demand.
The flow and head of the pump are too conservative, making the power too large.
Due to poor operation and maintenance, the efficiency of the refrigeration room is constantly reduced.
The above three points are the main problems existing in the air conditioning room, which lead to high overall energy consumption in the room, the operating cost of the air conditioning room far exceeds the design, and the indoor comfort can not meet the requirements when the outlet temperature is too high.
Therefore, the design optimization principle of an efficient computer room should revolve around the following points:
1, equipment performance - choose a higher energy efficiency than the host
2, system matching -- pipeline optimization equipment layout
3. Operation and maintenance management -- machine room optimization and automatic control
Sum up
Building energy efficiency is a very important part of the entire energy conservation and emission reduction system, and 60% of the building energy consumption is closely related to the central air conditioning system, so improving building energy efficiency has become the goal of many responsible companies at home and abroad.
Kaou Intelligent has carried out a lot of research and practical case applications in the field of air conditioning room, and has launched a wide range of cooperation in industries including large enterprises, rail transit, commercial squares, business offices and so on.
Optimization case
In the future, Kaou Intelligent will continue to optimize the system for customers by providing high energy efficiency products, services, system optimization solutions, and reduce energy consumption, while doing its part to protect the responsibility and obligation of Mother Earth.
