【 Weak current College 】 IDC machine room of Qi energy strategy required a multi-party hand-Power By 【 China power house network 】

In recent years, the Internet Data Center (IDC) business development presents good rise. Some quality good, lots of room, but also as high quality real estate is often a opening is sold out. However, the high operating costs (including electricity, personnel, equipment purchase, etc.), compressed the IDC business profit.　　Some rooms even have electricity charges up to half of the business income. In this case, the engine room of the energy saving is not superior to cope with, and became the reality of interest. IDC's primary energy consumption is divided into four blocks: servers and communication equipment uses electricity, cooling, electricity, power consumption, electric lighting and Office.　　Its composition ratio of each room. In General, the first two represent large head, the 40% ~ 50%, the latter two representing small head, 5% ~ 10%. Do the room heat management, reduce energy consumption of refrigeration power refrigeration is one of the big head of power the engine room.　　Impact of refrigeration efficiency of a number of factors, reducing the energy consumption of refrigeration are also available from many aspects.　　Do the room heat management, is one important aspect.　　First, the increase in the engine room leak-proof quality is improving cooling efficiency, reduce energy consumption of a prerequisite, you should do a wall, roof, floor, cable entry sealing work that move the window closed or foil insulation film, reduce unnecessary personnel turnover. Secondly, whether internal airflow into the engine room science, is the effective operation of the refrigeration system is critical to note the following points can be optimized airflow direction. — Adopting downside air supply, the last time the wind. This way, the hot air, natural increase in the proportion of light, not the cold wind and air mixture, is currently the industry recognized more efficient delivery, return air ways, through the "back to back, face to face" rack placed way to avoid the heatof the "cascade" phenomenon.　　"Cascade heating" refers to all racks are advancing cold air, hot air, after the discharge of hot air front rack is rear rack, case-by-row heated, the final form in the back room in an area, if the Cabinet Hina changed to "face to face, back to back" approach, the engine will naturally formed interval of cold, hot air channel. In this way, the heat will be local to the hot air channel, easy control. — — Planning internal airflow into the rack. First of all, you should avoid airflow obstruction. In the rack should stay out of the cold wind of freedom increases, avoid device full channel will cold wind barrier under send. Secondly, the airflow disturbance should be avoided.　　For example, there is a large space in a rack, easily lead to hot and cold wind. At this point, you should place the rack bezel in space (blanks), prevent hot air reflow. -Wiring neatly. For the mode of downside air, it is best to use on the alignment style. If you must go under the raised floor, should also accommodate the cable, do not block the air outlet. Furthermore, the "local hot-spot" is the room heat management should pay special attention to the problem.　　As the server intensive, small size, high efficiency, data center heat density may appear particularly high rack. These high density rack form a local hot spot within the engine room, become a thorny issue of refrigeration efficiency. — Strict load shifting, eliminate the "hotspot".　　The rack for setting current limitation, root causes to prevent the emergence of high density rack. However, with the development of the IT industry, the emergence of high density rack become inevitable, simply put the customers stand at the door, it is better to go with the development of thinking strategies.　　— — Reasonable layout, dealing with the "hotspot". When a device inside the rack power consumption extremely large, you can place it in the lower part of the rack, not upper; when a small amount of memory in the computerlab with high density rack, its average throughout the room and not the distribution. — In the engine room the wipe exclusive high density area high density rack, isolation.　　This high density rack will not affect the surrounding low density racks.　　In the closed small, targeted refrigeration, compared to the entire room for cooling efficiency is high.　　-Use the built-in refrigeration machine, i.e. directly to the refrigeration unit in the rack, you can more accurately on the "hot spots" for refrigeration, for example in the rack mounting storage backplane, through water flows away rack of heat. The best use of resources, improving cooling efficiency in doing well on the basis of thermal management, open up some new can take advantage of the resources of the refrigeration, or the original of the effectiveness of the refrigeration resources to maximize, to reduce the energy consumption of refrigeration equipment room in another way.　　One is to improve the efficiency of refrigeration air-conditioning itself. For example, using air conditioning additives, the improvement air-conditioning for a long time operation of the internal component wear, inefficiency, air-condition, frequency conversion air conditioning can dynamically change based on the heat load of fine-tuned its output power, this can save energy and prolong the service life of the compressor; consider old equipment out on the network of air conditioning equipment for analysis, eliminating the problem of multiple, inefficient old equipment, purchase of new equipment, is to increase investment in the short term, long term results are energy efficient. The second is to reduce the need for refrigeration. The larger room, lower the cooling effect. Construction in the engine room, tend to consider future expansion. If no expansion opportunities, deal with the coming of unused free space isolation.
The third is the use of external cold source. External cooling source for free resources, such as to take advantage of it, will be a means of economic and energy saving. For example, the use of outdoor air for air supply system. When indoor temperature reaches a certain temperature difference, by introducing outdoor fresh cold air, meet the refrigeration needs. The system, the high cost of frontloaded, and in the South and sandy areas are not applicable, should be integrated into consideration local conditions. Again such as use of soil heat dissipation. The thermal switch buried in constant temperature annual average temperature for the room temperature layer, you can loose soil heat.　　If you are near the groundwater, also can be used as a cold source. However, as the mesophilic layer depth is usually 10 to 20 meters underground, whose construction is difficult, in the application of telecommunication in the engine room. Fourth, energy-saving storage, such as the use of cold night electric power when idle, the ice-making power is busy for cooled. This will not only use the idle time of cheap electricity, or you can reduce power consumption during busy times, refrigeration, the electricity can be made at the time of load balancing. If the utilization occurs at room temperature range refrigerant storage cold phase. At night the temperature low, freezing cold storage refrigerant; Daytime temperature is high, refrigerant melting heat absorption, coldThe role of it.　　Optimization of power supply system, the lower the power consumption of power in the provision of power at the same time, there will be loss of electric energy. Although these losses in IDC total energy consumption in occupies head, but also the energy saving in the engine room. -Modular power supply.　　UPS efficiency and load power is directly proportional to the, the closer its full load capacity, its efficiency. Demand increased module, you can always leave a higher load factor. — — Server DC power supply. IDC commonly used double-conversion on-line UPS work is first after the AC into DC rectifier filtering, then bythe inverter converts the DC electrical equipment requires AC power of sine waves. Two AC, DC change poses a loss.　　If the server uses the DC power supply, can reduce a AC, DC change, achieve energy-saving effect. However at present most of the servers is AC power supply, DC power supply module production has not yet been scaled, so costs are relatively high. — — New UPS battery. UPS system commonly used acid VRLA has a short life and its bearing, area, temperature requirements, higher shortcomings brought high operational costs.　　New flywheel battery to the rotation of the flywheel energy storage, in the form of electrical energy without the use of environmentally dangerous chemical substances and have a long life, less, temperature requirements are not higher merit.　　At present, the flywheel battery is relatively new technology, prices, discharge time is short, some time after, mature hope in IDC machine in promoted. From a business perspective to promote energy-saving business adjusted IDC machine room, business innovation means, you can open a new energy-saving environmental protection. One is to price lever control users of electricity. To a carrier, for example, its each rack gratis 10A power supply, each additional 1A, press 800 Yuan/month charge.　　This price policies, on the users of electricity have a certain limit, the excess part of the charge, 10A on users to disciplinary action. At the same time, it guides the user in focus at the server instead of the energy consumption indicators blindly seeking cheap. The second is from the "hosting" to "Web hosting" transformation. Current business income, hosting more than 90%. In the server room, most of them belong to the user.　　These devices from high-end to low-end, a brand is also compatible machine. If the IDC business to "hosting service" in transition, by IDC unified purchasing a quantity of energy-saving server, from the engine room maintenance personnel uniform maintenance, you can bring the following benefits: reduced customer maintenance personnel turnover compared to the original user; diverse devices, unified specification device in the management, maintenance, low difficulty; there is a unified purchasing energy-efficient devices, advanced equipment and energy-saving technology used in the engine room dimensions, energy-saving device can not only save room communication power, but also because the equipment less fever, saving room air-conditioning power consumption. The third is virtualization. At present, many server utilization is only 10% to 20% and a fully-idle power consumption of the server will be the peak usage by 50% to 80%, therefore, improve utilization, reduce the number of physical machines, you can achieve energy-saving effect. Virtualization has a single-server virtualization and server virtualization. The former is the use of the software to a single physical machine into dozens of virtual machine. This virtual machine to the user, the IDC in value-added service, but this kind of business volume small, the customer is unable to afford the cost of a low-end user equipments. Therefore, the contribution of the energy-saving also. Cross-server virtualization, application delivery technology that uses (local load balancing technology), on multiple servers for load balancing locally.　　This level of virtualization, you can improve the per physical machine utilization, and reduce the actual need for the number of physical machines. However, this kind of virtualization in an existing business mode is also difficult to achieve, but from the "hosting" to "Web hosting" or even "application and hiring" transition to fully embody the virtualization brings energy saving effect. In the "device power" energy-saving measures can be taken. Some in the enterprise data center room can adopt energy saving technologies, IDC not implemented. Only by conforming to the IDC business trends on business models for the update is only possible in the "device power" to make abig fuss about.