H.Stars (Guangzhou) Refrigerating Equipment Group Ltd.

  Data centers rely on diverse cooling methods, categorized into mechanical refrigeration and natural cooling. Mechanical systems include air-cooled direct expansion (DX), air-cooled chilled water, water-cooled chilled water, and centralized cooling water systems. Natural cooling encompasses fresh air, plate heat exchange, rotary heat exchange, evaporative cooling, and liquid cooling. Air-cooled DX Systems  are traditional, with indoor units (compressor, evaporator) connected to outdoor condensers via refrigerant lines. Their simple design ensures reliability (no single point of failure). With fluoride pump energy saving (activating below 5°C), PUE in Zhejiang drops from ~1.71 to ~1.43. Water-cooled Chilled Water Systems  use centrifugal chillers and cooling towers, ideal for high heat loads. Winter free cooling via heat exchangers boosts efficiency (PUE ~1.43 in Zhejiang) but requires complex maintenance. Air-cooled Chilled Water Systems skip cooling towers, suiting mode...