Entropic create cost effective engineered solutions for Data Centre projects where time is at a premium.
Entropic provide ventilation and air conditioning equipment for hyper-scale and collocation data centres throughout Europe.
Entropic large format dampers are particularly suited for hyper-scale data centres which require large air flows.
With each damper module size available up to 2.4m x 2.4m with a single motor, it is probably the most cost effective solution on the market.
The combination of a very large damper module and a single motor optimise installation time, wiring, commissioning and maintenance.
AHU Design for Crac Systems
With CRAC units in the space, the fresh air needs to be conditioned.
Reliable, energy efficient and low environmental impact systems
Data centers (also referred to as server rooms or IT rooms) are the building blocks of any business organization providing capabilities of centralized storage, backups, management, networking and dissemination of data. Data centers fall into two major categories: corporate data centers (CDCs) and Internet data centers (IDCs).
The data center equipment generates a considerable amount of heat in a relatively small area. This is because every watt of power used by a system is dissipated into the air as heat. Unless the heat is removed, the ambient temperature will rise, eventually beyond design specifications resulting in electronic equipment failure.
The HVAC system for the data center is managed by the air conditioning system, which is influenced by 5 main factors:
1. The type of IT equipment
2. The IT equipment configuration
3. The “service levels”
4. The budget and
5. The ‘Green Policy’
The data center is a big consumer of energy both for driving the IT equipment and also for the cooling system. The energy bill for the data center is often the major part of the overall operating costs and is increasingly a visible part of the IT delivery cost. While the energy consumed by data-processing equipment is fairly constant year-round, considerable inefficiencies are attributed to cooling systems. Some of the inefficiencies are:
- Air conditioning units work at full capacity all of the time;
- Cooling equipment is not aligned for air flow direction within racks and the temperatures vary greatly throughout the room
- The level of cold supply air remix with hot return air is usually very high, producing very poor air conditioning efficiency.
HVAC equipment location and system design is also important. ASHRAE recommends laying out equipment racks according to the Hot Aisle–Cold Aisle layout, which means aligning IT equipment racks in rows, such that the cabinet fronts face the cool aisle, and exhaust is directed to the hot aisle. This type of design minimizes hot and cold air mixing and maximizes the heat dissipation.
Data center cooling systems consume a large amount of energy. To facility operations and maintenance teams, the following metrics will provide an optimization opportunity and help in meeting the efficiency standards.
HVAC System Effectiveness
Power that enters a data center facility is divided into two components:
- IT equipment (servers for data storage, processing and applications)
- Supporting infrastructure (mainly HVAC).
- HVAC system effectiveness is defined as the ratio of the annual IT equipment energy to the annual HVAC system energy:
This metric characterizes overall airflow efficiency in terms of the total fan power required per unit of airflow. This metric provides an overall measure of how efficiently air is moved through the data center, from the supply to the return, and takes into account low pressure drop design as well as fan system efficiency.
Cooling System Efficiency
The most common metric used to measure the efficiency of an HVAC system is the ratio of the average cooling system power usage (kW) to the average data center cooling load (tons). A cooling system efficiency of 0.8 kW/ton is considered a good practice while an efficiency of 0.6 kW/ton is considered a better benchmark value.
We realise Data Centre projects require speedy solutions and revisions to bring the design to a close. If you have any queries regarding Data Centre environmental design, Entropic can assist you in achieving a cost effective engineered solution.