Archivo de etiquetas Sistema de enfriamiento indirecto aire-aire

Indirect Cooling in Data Centers

Modern data centers are remarkably technologically complex, and keeping them running safely and efficiently requires continual close monitoring and management.

Maintaining the correct temperature is among the most important tasks faced by data center managers. Should the temperature and humidity rise to excessive levels inside the data center, condensation can start forming, damaging the machines within. This can cause massive damage and disruption, so it must be avoided at all costs. Fortunately, various technologies are on hand that can help keep data center temperatures at the right level.

There are numerous ways to cool a data center. Indirect air cooling uses external air, but by including an air-to-air heat exchanger, the outside air is kept in a separate loop, providing cooling without entering the server room.

Indirect cooling methods benefit by not contaminating the inside air with outdoor air pollutants and humidity. A heat exchanger keeps both airstreams separated while transferring the heat from the inside to the outside of the data center building. Consequently, the ambient and indoor air never mix.

Dry cooling is usually sufficient if the data center is located in a consistently low-temperature area, meaning no water is involved. However, by spraying water on the ambient air side of the heat exchanger, an evaporative effect is achieved, resulting in a lower indoor air temperature. This method is called indirect evaporative cooling (IEC).

Ideally suited for warm, dry climates, IEC provides excellent cooling potential with low operational- and first-cost. Ambient temperature reductions of 6-8 °C (10-15 °F) are typical in summer conditions. IEC provides up to 28% in energy savings compared to conventional free cooling and 52% to air-cooled Free Cooling alternatives.

Evaporative cooling requires a plate heat exchanger that balances high efficiency with low pressure drop, offers solid corrosion protection, and reliable water tightness. Cross-flow heat exchangers meet all these requirements while providing outstanding cooling capacity.

Our crossflow heat exchangers, especially with evaporative cooling technology, provide an efficient, low-cost, and environmentally friendly alternative to traditional cooling methods.

Indirect Cooling in Data Centers

Generador eólico Sistema de enfriamiento indirecto aire-aire

W.Indiana fondo del sistema de energía

La energía eólica es un tipo de energía limpia, con características de energía renovable, libre de contaminación, de gran tamaño y con amplias perspectivas. El desarrollo de energías limpias es la opción estratégica de todos los países del mundo.

Sin embargo, si el aire se introduce directamente en la cabina del generador para enfriarlo, el polvo y el gas corrosivo entrarán en la cabina (especialmente en las turbinas eólicas instaladas en alta mar).

Solución de sistema de refrigeración indirecta

El método de enfriamiento indirecto puede hacer que el aire del interior y del exterior realice un intercambio de calor indirecto para lograr el efecto de enfriar la cabina del generador eólico sin traer polvo ni gases corrosivos del exterior a la cabina.

El componente principal del sistema de refrigeración indirecta es el intercambiador de calor de placas BXB. En el intercambiador de calor de placas BXB, dos canales están separados por papel de aluminio. El aire de la cabina es de circulación cerrada y el aire exterior es de circulación abierta. Los dos aires realizan intercambio de calor. El aire de la cabina transfiere calor al aire exterior, lo que reduce la temperatura en el aerogenerador. Además, el aire dentro y fuera de la cabina no se mezclará debido al aislamiento del papel de aluminio, que evita que entren polvo y gases corrosivos fuera de la cabina.

Análisis del efecto de enfriamiento.

Taking a 2MW unit as an example, the motor's heat generation is 70kW, The circulating air volume in the engine room is 7000m3/h and the temperature is 85℃. The outside circulating air volume is 14000m3/h and the temperature is 40℃. Through the BXB1000-1000 plate heat exchanger, the air temperature in the cabin can be reduced to 47℃ and the heat dissipation capacity can reach 72kW. The relevant parameters are as follows:

Generador eólico Sistema de enfriamiento indirecto aire-aire

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