Green Times How To Reduce Refrigeration Equipment Running Costs - Servers, Cooling Equipment,

HC HVAC & R Network According to statistics, in the United States of servers power more than 10 billion U.S

. dollars, of which more than one-third of the cost for server cooling.

The power shortage in China, some of the city, electricity prices even higher. Interesting thing is that most data center managers turn a blind eye about these costs. For them, the biggest concern is whether the data center's workload continued to increase to provide sufficient power. Meanwhile, the equipment managers to pay electricity bills in time would not care about these issues. The future, as

Power supply And heat dissipation problems become more widespread and prominent,

Energy Resources more and more urgent to reduce energy consumption is inevitable.

LawrenceBerkeley National Laboratory, according to survey, a typical data center power consumption ratio:

1. IT Equipment (servers, switches, routers, etc.) accounted for 44%

2. Refrigeration equipment (computer room precision air conditioning,

Fans ) 38% 3. Power supplies (UPS, SPM, etc.) 15%

4. Lighting 3% Not difficult to see from the above ratio in which power consumption of refrigeration equipment, behind only the main equipment and IT power consumption in the second, then 38% of how this power consumption to a minimum, how to effectively reduce data center operating costs, I will come to explore the following issues:

Reasonable choice of refrigeration equipment room

Data center heat generated by the device requires the use of air

Cooling Solution to, then the data center cooling equipment is the best room dedicated precision air conditioning, but some customers will ask why the common

Commercial Air Conditioning No, both are used to reduce temperature of the space environment, and commercial air conditioning for computer rooms cheaper than many.

In fact, environmental control equipment room is not as simple as you imagine, just to lower the temperature of the environment can be, he needs to consider in many ways, such as temperature control accuracy, and the environment humidity, cleanliness, control and management etc.; Room Air Conditioner is for room temperature control equipment, and civil air-conditioning are directly serve people.

Their design concepts and features are completely different. The biggest difference is the engine room Air Conditioner is a wind quantity, small enthalpy difference, high sensible heat ratio; civilian air conditioning is just the opposite, a small air volume, a large enthalpy difference, low sensible heat ratio (sensible heat ratio concept refers to air cooling and addition relatively wet power ratio).

Data centers and IT hardware, network systems will generate a lot of concentration to run the heat, while changes in temperature and humidity are extremely sensitive to minor fluctuations of temperature and humidity, it could cause serious system problems, ranging from system to produce useless information, while in system downtime; in the IT equipment room, the heat load is almost entirely from the IT hardware, lighting, support equipment were distributed heat, IT equipment rooms basically does not produce the latent heat, because there are fewer outside air is limited , physical structure, they often contain moisture-proof layer. To meet the special air-conditioned room environment demands a very high sensible heat ratio, reaching 0.90 Yiu 0.99.

Precision air conditioning systems designed to meet these very high sensible heat ratio of the system, comparison, comfortable air-conditioning systems were heat than the usual 0.70 to 0.65 Yiu, which can only provide the cooling capacity was lower, while the potential higher cooling capacity. Latent heating and cooling means too much air in large amounts of water are removed. In order to maintain the required 50% by 5% relative humidity range, you need continuous humidification air conditioning, which would cost a lot of unnecessary waste of energy.

by: gaga

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